G01F1/00	7	Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow (measuring a proportion of the volume flow G01F5/00)<br><br><u>NOTE</u><br><br>Groups G01F1/704 - G01F1/76 take precedence over groups G01F1/05 - G01F1/68.	G01F1/00	G01F1/00		2940
G01F1/002	8	wherein the flow is in an open channel	G01F1/002	G01F1/002		1074
G01F1/005	9	{using floats}	G01F1/002	G01F1/00		157
G01F1/007	8	{by measuring the level variations of storage tanks relative to the time}	G01F1/00	G01F1/00		399
G01F1/05	8	by using mechanical effects	G01F1/05	G01F1/05		478
G01F1/053	9	{using rotating vanes with tangential and axial admission}	G01F1/05	G01F1/05		61
G01F1/056	9	{Orbital ball flowmeters}	G01F1/05	G01F1/05		152
G01F1/06	9	using rotating vanes with tangential admission	G01F1/06	G01F1/06		940
G01F1/065	10	{with radiation as transfer means to the indicating device, e.g. light transmission}	G01F1/06	G01F1/06		154
G01F1/07	10	with mechanical coupling to the indicating device	G01F1/07	G01F1/07		238
G01F1/075	10	with magnetic or electromagnetic coupling to the indicating device	G01F1/075	G01F1/075		637
G01F1/0755	11	{with magnetic coupling only in a mechanical transmission path}	G01F1/075	G01F1/075		96
G01F1/08	10	Adjusting, correcting or compensating means therefor	G01F1/08	G01F1/08		318
G01F1/10	9	using rotating vanes with axial admission	G01F1/10	G01F1/10		884
G01F1/103	10	{with radiation as transfer means to the indicating device, e.g. light transmission}	G01F1/10	G01F1/10		165
G01F1/106	10	{with electrostatic coupling to the indicating device}	G01F1/10	G01F1/10		52
G01F1/11	10	with mechanical coupling to the indicating device	G01F1/11	G01F1/11		136
G01F1/115	10	with magnetic or electromagnetic coupling to the indicating device	G01F1/115	G01F1/115		719
G01F1/1155	11	{with magnetic coupling only in a mechanical transmission path}	G01F1/115	G01F1/115		80
G01F1/12	10	Adjusting, correcting, or compensating means therefor	G01F1/12	G01F1/12		274
G01F1/125	11	{with electric, electro-mechanical or electronic means}	G01F1/12	G01F1/12		145
G01F1/20	9	by detection of dynamic effects of the flow	G01F1/20	G01F1/20		501
G01F1/203	10	{Jet stream flowmeters}	G01F1/20	G01F1/20		30
G01F1/206	10	{Measuring pressure, force or momentum of a fluid flow which is forced to change its direction}	G01F1/20	G01F1/20		250
G01F1/22	10	by variable-area meters {, e.g. rotameters}	G01F1/22	G01F1/22		868
G01F1/24	11	with magnetic or electric coupling to the indicating device	G01F1/24	G01F1/24		585
G01F1/26	11	of the valve type	G01F1/26	G01F1/26		440
G01F1/28	10	by drag-force, e.g. vane type or impact flowmeter	G01F1/28	G01F1/28		1645
G01F1/30	11	for fluent solid material	G01F1/30	G01F1/30		227
G01F1/32	10	using swirl flowmeters	G01F1/32	G01F1/32		536
G01F1/3209	11	{using Karman vortices}	G01F1/32	G01F1/32		411
G01F1/3218	12	{bluff body design}	G01F1/32	G01F1/32		271
G01F1/3227	11	{using fluidic oscillators (fluidic oscillators per seF15C1/00)}	G01F1/32	G01F1/32		220
G01F1/3236	11	{using guide vanes as swirling means}	G01F1/32	G01F1/32		86
G01F1/325	11	Means for detecting quantities used as proxy variables for swirl	G01F1/325	G01F1/325		192
G01F1/3259	12	{for detecting fluid pressure oscillations}	G01F1/325	G01F1/325		223
G01F1/3266	13	{by sensing mechanical vibrations}	G01F1/325	G01F1/32		311
G01F1/3273	12	{for detecting fluid speed oscillations by thermal sensors}	G01F1/325	G01F1/32		82
G01F1/3282	12	{for detecting variations in infrasonic, sonic or ultrasonic waves, due to modulation by passing through the swirling fluid}	G01F1/325	G01F1/32		142
G01F1/3287	12	{circuits therefor}	G01F1/325	G01F1/32		237
G01F1/34	9	by measuring pressure or differential pressure	G01F1/34	G01F1/34		1735
G01F1/36	10	the pressure or differential pressure being created by the use of flow constriction	G01F1/36	G01F1/36		1086
G01F1/363	11	{with electrical or electro-mechanical indication (G01F1/37 and G01F1/38 take precedence)}	G01F1/36	G01F1/36		722
G01F1/366	11	{with mechanical or fluidic indication (G01F1/37 and G01F1/38 take precedence)}	G01F1/36	G01F1/36		57
G01F1/37	11	the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes	G01F1/37	G01F1/37		179
G01F1/372	12	{with electrical or electro-mechanical indication}	G01F1/37	G01F1/37		242
G01F1/375	12	{with mechanical or fluidic indication}	G01F1/37	G01F1/37		230
G01F1/377	12	{using a ring-balance as indicating element}	G01F1/37	G01F1/37		52
G01F1/38	11	the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule	G01F1/38	G01F1/38		265
G01F1/383	12	{with electrical or electro-mechanical indication}	G01F1/38	G01F1/38		404
G01F1/386	12	{with mechanical or fluidic indication}	G01F1/38	G01F1/38		244
G01F1/40	11	Details of construction of the flow constriction devices	G01F1/40	G01F1/40		787
G01F1/42	12	Orifices or nozzles	G01F1/42	G01F1/42		1037
G01F1/44	12	Venturi tubes	G01F1/44	G01F1/44		842
G01F1/46	12	Pitot tubes	G01F1/46	G01F1/46		694
G01F1/48	10	the pressure or differential pressure being created by a capillary element	G01F1/48	G01F1/48		114
G01F1/50	10	Correcting or compensating means	G01F1/50	G01F1/50		587
G01F1/52	9	by measuring the height of the fluid level due to the lifting power of the fluid flow	G01F1/52	G01F1/52		531
G01F1/54	9	by means of chains, flexible bands or wires introduced into and moved by, the flow	G01F1/54	G01F1/54		40
G01F1/56	8	by using electric or magnetic effects (G01F1/66 takes precedence)	G01F1/56	G01F1/56		752
G01F1/58	9	by electromagnetic flowmeters	G01F1/58	G01F1/58		1823
G01F1/582	10	{without electrodes}	G01F1/58	G01F1/58		126
G01F1/584	10	{constructions of electrodes, accessories therefor}	G01F1/58	G01F1/58		612
G01F1/586	10	{constructions of coils, magnetic circuits, accessories therefor (G01F1/582 takes precedence; magnet; inductances; transformers; selection of materials for their magnetic properties per seH01F)}	G01F1/58	G01F1/58		509
G01F1/588	10	{combined constructions of electrodes, coils or magnetic circuits, accessories therefor}	G01F1/58	G01F1/58		669
G01F1/60	10	Circuits therefor	G01F1/60	G01F1/60		1004
G01F1/64	9	by measuring electrical currents passing through the fluid flow; measuring electrical potential generated by the fluid flow, e.g. by electrochemical, contact or friction effects (G01F1/58 takes precedence)	G01F1/64	G01F1/64		560
G01F1/66	8	by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters	G01F1/66	G01F1/66		2195
G01F1/661	9	using light	G01F1/661	G01F1/661		705
G01F1/662	9	{Constructional details}	G01F1/66	G01F1/66		2919
G01F1/663	9	by measuring Doppler frequency shift	G01F1/663	G01F1/663		679
G01F1/665	9	{of the drag-type}	G01F1/66	G01F1/66		50
G01F1/666	9	{by detecting noise and sounds generated by the flowing fluid}	G01F1/66	G01F1/66		387
G01F1/667	9	Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters	G01F1/667	G01F1/667		2954
G01F1/668	10	{Compensating or correcting for variations in velocity of sound}	G01F1/667	G01F1/66		496
G01F1/68	8	by using thermal effects	G01F1/68	G01F1/68		1309
G01F1/684	9	Structural arrangements; Mounting of elements, e.g. in relation to fluid flow	G01F1/684	G01F1/684		1620
G01F1/6842	10	{with means for influencing the fluid flow}	G01F1/684	G01F1/684		1243
G01F1/6845	10	{Micromachined devices}	G01F1/684	G01F1/684		1012
G01F1/6847	10	{where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct}	G01F1/684	G01F1/684		652
G01F1/688	10	using a particular type of heating, cooling or sensing element {(G01F1/6847 takes precedence)}	G01F1/688	G01F1/688		247
G01F1/6882	11	{making use of temperature dependence of acoustic properties, e.g. propagation speed of surface acoustic waves}	G01F1/688	G01F1/688		30
G01F1/6884	11	{making use of temperature dependence of optical properties}	G01F1/688	G01F1/688		83
G01F1/6886	11	{Pyroelectric elements}	G01F1/688	G01F1/688		11
G01F1/6888	11	{Thermoelectric elements, e.g. thermocouples, thermopiles}	G01F1/688	G01F1/688		343
G01F1/69	11	of resistive type	G01F1/69	G01F1/69		640
G01F1/692	12	Thin-film arrangements	G01F1/692	G01F1/692		793
G01F1/696	9	Circuits therefor, e.g. constant-current flow meters	G01F1/696	G01F1/696		780
G01F1/6965	10	{comprising means to store calibration data for flow signal calculation or correction}	G01F1/696	G01F1/696		392
G01F1/698	10	Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters	G01F1/698	G01F1/698		543
G01F1/6983	11	{adapted for burning-off deposits}	G01F1/698	G01F1/698		123
G01F1/6986	11	{with pulsed heating, e.g. dynamic methods}	G01F1/698	G01F1/698		194
G01F1/699	11	by control of a separate heating or cooling element	G01F1/699	G01F1/699		185
G01F1/704	8	using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter (G01F1/76, G01F25/00 take precedence)	G01F1/704	G01F1/704		426
G01F1/7042	9	{using radioactive tracers}	G01F1/704	G01F1/704		125
G01F1/7044	9	{using thermal tracers}	G01F1/704	G01F1/704		117
G01F1/7046	9	{using electrical loaded particles as tracer, e.g. ions or electrons}	G01F1/704	G01F1/704		42
G01F1/7048	10	{the concentration of electrical loaded particles giving an indication of the flow}	G01F1/704	G01F1/704		25
G01F1/708	9	Measuring the time taken to traverse a fixed distance	G01F1/708	G01F1/708		275
G01F1/7082	10	using acoustic detecting arrangements	G01F1/7082	G01F1/7082		208
G01F1/7084	10	using thermal detecting arrangements	G01F1/7084	G01F1/7084		195
G01F1/7086	10	using optical detecting arrangements	G01F1/7086	G01F1/7086		359
G01F1/7088	10	using electrically charged particles as tracers	G01F1/7088	G01F1/7088		97
G01F1/712	10	using auto-correlation or cross-correlation detection means	G01F1/712	G01F1/712		468
G01F1/716	10	using electron paramagnetic resonance [EPR] or nuclear magnetic resonance [NMR]	G01F1/716	G01F1/716		146
G01F1/72	8	Devices for measuring pulsing fluid flows	G01F1/72	G01F1/72		501
G01F1/74	8	Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid	G01F1/74	G01F1/74		2120
G01F1/76	8	Devices for measuring mass flow of a fluid or a fluent solid material	G01F1/76	G01F1/76		662
G01F1/78	9	Direct mass flowmeters	G01F1/78	G01F1/78		291
G01F1/785	10	{using fluidic bridge circuits}	G01F1/78	G01F1/78		37
G01F1/80	10	operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted	G01F1/80	G01F1/80		311
G01F1/82	11	using a driven wheel as impeller and one or more other wheels or moving elements which are angularly restrained by a resilient member, e.g. spring member as the measuring device	G01F1/82	G01F1/82		124
G01F1/84	11	Coriolis or gyroscopic mass flowmeters	G01F1/84	G01F1/84		491
G01F1/8404	12	{details of flowmeter manufacturing methods}	G01F1/84	G01F1/84		125
G01F1/8409	12	{constructional details}	G01F1/84	G01F1/84		574
G01F1/8413	13	{means for influencing the flowmeter&apos;s motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments}	G01F1/84	G01F1/84		792
G01F1/8418	14	{motion or vibration balancing means}	G01F1/84	G01F1/84		264
G01F1/8422	13	{exciters}	G01F1/84	G01F1/84		387
G01F1/8427	13	{detectors}	G01F1/84	G01F1/84		371
G01F1/8431	13	{electronic circuits}	G01F1/84	G01F1/84		415
G01F1/8436	13	{signal processing}	G01F1/84	G01F1/84		721
G01F1/844	13	{microfluidic or miniaturised flowmeters}	G01F1/84	G01F1/84		25
G01F1/8445	14	{micromachined flowmeters}	G01F1/84	G01F1/84		52
G01F1/845	12	{arrangements of measuring means, e.g., of measuring conduits}	G01F1/84	G01F1/84		77
G01F1/8454	13	{rotating or rotatingly suspended measuring conduits}	G01F1/84	G01F1/84		88
G01F1/8459	13	{vibrating means being located inside the measuring conduits}	G01F1/84	G01F1/84		34
G01F1/8463	13	{the measuring conduits&apos; cross-section being deformed during measurement, e.g. by periodically deflecting a portion of the conduits&apos; surface}	G01F1/84	G01F1/84		31
G01F1/8468	13	{vibrating measuring conduits}	G01F1/84	G01F1/84		132
G01F1/8472	14	{having curved measuring conduits, i.e. whereby the measuring conduits&apos; curved center line lies within a plane (G01F1/8481 takes precedence)}	G01F1/84	G01F1/84		298
G01F1/8477	15	{with multiple measuring conduits}	G01F1/84	G01F1/84		547
G01F1/8481	14	{having loop-shaped measuring conduits, e.g. the measuring conduits form a loop with a crossing point}	G01F1/84	G01F1/84		73
G01F1/8486	15	{with multiple measuring conduits}	G01F1/84	G01F1/84		154
G01F1/849	14	{having straight measuring conduits}	G01F1/84	G01F1/84		397
G01F1/8495	15	{with multiple measuring conduits}	G01F1/84	G01F1/84		149
G01F1/86	9	Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure	G01F1/86	G01F1/86		1001
G01F1/88	10	with differential-pressure measurement to determine the volume flow	G01F1/88	G01F1/88		426
G01F1/90	10	with positive-displacement meter or turbine meter to determine the volume flow	G01F1/90	G01F1/90		142
G01F3/00	7	Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow (measuring a proportion of the volume flow G01F5/00)	G01F3/00	G01F3/00		240
G01F3/02	8	with measuring chambers which expand or contract during measurement	G01F3/02	G01F3/02		28
G01F3/04	9	having rigid movable walls	G01F3/04	G01F3/04		29
G01F3/06	10	comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing	G01F3/06	G01F3/06		156
G01F3/065	11	{sliding-vane meters}	G01F3/06	G01F3/06		135
G01F3/08	11	Rotary-piston or ring-piston meters	G01F3/08	G01F3/08		410
G01F3/10	11	Geared or lobed impeller meters	G01F3/10	G01F3/10		546
G01F3/12	11	Meters with nutating members, e.g. discs	G01F3/12	G01F3/12		337
G01F3/14	10	comprising reciprocating pistons, e.g. reciprocating in a rotating body	G01F3/14	G01F3/14		72
G01F3/16	11	in stationary cylinders	G01F3/16	G01F3/16		502
G01F3/18	12	involving two or more cylinders	G01F3/18	G01F3/18		490
G01F3/20	9	having flexible movable walls, e.g. diaphragms, bellows	G01F3/20	G01F3/20		278
G01F3/22	10	for gases	G01F3/22	G01F3/22		388
G01F3/221	11	{Valves therefor (valves for flowmeters in general G01F15/005)}	G01F3/22	G01F3/22		264
G01F3/222	11	{characterised by drive mechanism for valves or membrane index mechanism}	G01F3/22	G01F3/22		406
G01F3/223	12	{with adjustment of stroke or timing; Calibration thereof; Testing}	G01F3/22	G01F3/22		99
G01F3/224	12	{with means for pressure or temperature compensation}	G01F3/22	G01F3/22		70
G01F3/225	11	{characterised by constructional features of membranes or by means for improving proper functioning of membranes (diaphragms for flowmeters in general G01F15/16)}	G01F3/22	G01F3/22		460
G01F3/226	11	{characterised by features of meter body or housing}	G01F3/22	G01F3/22		434
G01F3/227	11	{characterised by the means for transfer of membrane movement information to indicating means}	G01F3/22	G01F3/22		48
G01F3/228	12	{using mechanical transmission means}	G01F3/22	G01F3/22		57
G01F3/24	8	with measuring chambers moved during operation (wet gas-meters G01F3/30)	G01F3/24	G01F3/24		38
G01F3/26	9	Tilting-trap meters	G01F3/26	G01F3/26		189
G01F3/28	9	on carriers rotated by the weight of the liquid in the measuring chambers	G01F3/28	G01F3/28		219
G01F3/30	8	Wet gas-meters	G01F3/30	G01F3/30		428
G01F3/32	9	comprising partitioned drums rotating or nutating in a liquid	G01F3/32	G01F3/32		10
G01F3/34	9	comprising bells reciprocating in a liquid	G01F3/34	G01F3/34		2
G01F3/36	8	with stationary measuring chambers having constant volume during measurement (with measuring chambers which expand or contract during measurement G01F3/02)	G01F3/36	G01F3/36		276
G01F3/38	9	having only one measuring chamber	G01F3/38	G01F3/38		502
G01F5/00	7	Measuring a proportion of the volume flow	G01F5/00	G01F5/00		1411
G01F5/005	8	{by measuring pressure or differential pressure, created by the use of flow constriction}	G01F5/00	G01F5/00		290
G01F7/00	7	Volume-flow measuring devices with two or more measuring ranges; Compound meters	G01F7/00	G01F7/00		676
G01F7/005	8	{by measuring pressure or differential pressure, created by the use of flow constriction}	G01F7/00	G01F7/00		166
G01F9/00	7	Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine	G01F9/00	G01F9/00		628
G01F9/001	8	{with electric, electro-mechanic or electronic means (G01F9/008 and G01F9/02 take precedence)}	G01F9/00	G01F9/00		657
G01F9/003	9	{by measuring the weight}	G01F9/00	G01F9/00		103
G01F9/005	9	{by using calibrated reservoirs}	G01F9/00	G01F9/00		60
G01F9/006	8	{with mechanic means (G01F9/008 and G01F9/02 take precedence)}	G01F9/00	G01F9/00		279
G01F9/008	8	{where the other variable is the flight or running time}	G01F9/00	G01F9/00		231
G01F9/02	8	wherein the other variable is the speed of a vehicle	G01F9/02	G01F9/02		98
G01F9/023	9	{with electric, electro-mechanic or electronic means}	G01F9/02	G01F9/02		354
G01F9/026	9	{with mechanic means}	G01F9/02	G01F9/02		82
G01F11/00	7	Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it	G01F11/00	G01F11/00		539
G01F11/003	8	{for fluent solid material}	G01F11/00	G01F11/00		254
G01F11/006	8	{Details or accessories (general details G01F15/00)}	G01F11/00	G01F11/00		210
G01F11/02	8	with measuring chambers which expand or contract during measurement	G01F11/02	G01F11/02		174
G01F11/021	9	{of the piston type (G01F11/04 takes precedence)}	G01F11/02	G01F11/02		1096
G01F11/022	10	{of the gun type and actuated by fluid pressure or by a motor (air-operated grease guns F16N5/02; devices to fill holes or cracks B05C17/002)}	G01F11/02	G01F11/02		76
G01F11/023	10	{with provision for varying the stroke of the piston}	G01F11/02	G01F11/02		301
G01F11/024	10	{the pistons reciprocating in rotatable cylinders (dough-dividing machines with division boxes in a revolving body with radially-working pistons A21C5/04)}	G01F11/02	G01F11/02		134
G01F11/025	10	{with manually operated pistons (G01F19/005 takes precedence)}	G01F11/02	G01F11/02		468
G01F11/026	11	{of the gun type (hand operated grease guns F16N3/12)}	G01F11/02	G01F11/02		232
G01F11/027	11	{of the syringe type}	G01F11/02	G01F11/02		222
G01F11/028	11	{the dosing device being provided with a dip tube and fitted to a container, e.g. to a bottleneck}	G01F11/02	G01F11/02		404
G01F11/029	10	{provided with electric controlling means (G01F11/022 and G01F11/024 take precedence)}	G01F11/02	G01F11/02		328
G01F11/04	9	of the free-piston type	G01F11/04	G01F11/04		470
G01F11/06	10	with provision for varying the stroke of the piston	G01F11/06	G01F11/06		158
G01F11/08	9	of the diaphragm or bellows type	G01F11/08	G01F11/08		374
G01F11/082	10	{of the squeeze container type (using squeeze bottles or the like for soap A47K5/122)}	G01F11/08	G01F11/08		136
G01F11/084	10	{using a bulb to pressurise the fluid to be dispersed}	G01F11/08	G01F11/08		87
G01F11/086	10	{using an auxiliary pressure to cooperate with the diaphragm or bellows}	G01F11/08	G01F11/08		152
G01F11/088	10	{using a deformable conduit-like element}	G01F11/08	G01F11/08		137
G01F11/10	8	with measuring chambers moved during operation	G01F11/10	G01F11/10		283
G01F11/12	9	of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements (involving the tilting or inverting of the supply vessel G01F11/26)	G01F11/12	G01F11/12		141
G01F11/125	10	{of the peristaltic pump type (peristaltic pumps per seF04B43/12)}	G01F11/12	G01F11/12		89
G01F11/14	10	wherein the measuring chamber reciprocates	G01F11/14	G01F11/14		42
G01F11/16	11	for liquid or semiliquid	G01F11/16	G01F11/16		157
G01F11/18	11	for fluent solid material	G01F11/18	G01F11/18		490
G01F11/20	10	wherein the measuring chamber rotates or oscillates	G01F11/20	G01F11/20		108
G01F11/22	11	for liquid or semiliquid	G01F11/22	G01F11/22		361
G01F11/24	11	for fluent solid material	G01F11/24	G01F11/24		1337
G01F11/26	9	wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus	G01F11/26	G01F11/26		132
G01F11/261	10	{for fluent solid material}	G01F11/26	G01F11/26		552
G01F11/262	10	{for liquid or semi-liquid}	G01F11/26	G01F11/26		497
G01F11/263	11	{with valves}	G01F11/26	G01F11/26		434
G01F11/265	12	{of the ball type}	G01F11/26	G01F11/26		126
G01F11/266	11	{using the syphonic effect}	G01F11/26	G01F11/26		88
G01F11/267	10	{with counters for counting the numbers of measures delivered}	G01F11/26	G01F11/26		124
G01F11/268	10	{with provision for varying the volume to be delivered}	G01F11/26	G01F11/26		109
G01F11/28	8	with stationary measuring chambers having constant volume during measurement	G01F11/28	G01F11/28		876
G01F11/282	9	{for fluent solid material not provided for in G01F11/34, G01F11/40, G01F11/46}	G01F11/28	G01F11/28		211
G01F11/284	9	{combined with electric level detecting means (G01F11/282, G01F11/30&#160;-&#160;G01F11/46 take precedence)}	G01F11/28	G01F11/28		200
G01F11/286	9	{where filling of the measuring chamber is effected by squeezing a supply container that is in fluid connection with the measuring chamber and excess fluid is sucked back from the measuring chamber during relaxation of the supply container}	G01F11/28	G01F11/28		299
G01F11/288	9	{squeezing of the supply vessel causing filling of the measuring chamber and backflow from the measuring chamber to the supply vessel being prevented by a check valve (G01F11/46 take precedence)}	G01F11/28	G01F11/28		60
G01F11/30	9	with supply and discharge valves of the lift or plug-lift type	G01F11/30	G01F11/30		49
G01F11/32	10	for liquid or semiliquid	G01F11/32	G01F11/32		678
G01F11/34	10	for fluent solid material	G01F11/34	G01F11/34		91
G01F11/36	9	with supply or discharge valves of the rectilinearly-moved slide type	G01F11/36	G01F11/36		31
G01F11/38	10	for liquid or semiliquid	G01F11/38	G01F11/38		111
G01F11/40	10	for fluent solid material	G01F11/40	G01F11/40		243
G01F11/42	9	with supply or discharge valves of the rotary or oscillatory type	G01F11/42	G01F11/42		37
G01F11/44	10	for liquid or semiliquid	G01F11/44	G01F11/44		296
G01F11/46	10	for fluent solid material	G01F11/46	G01F11/46		191
G01F13/00	7	Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups	G01F13/00	G01F13/00		677
G01F13/001	8	{for fluent solid material}	G01F13/00	G01F13/00		335
G01F13/003	9	{comprising a conveyor belt}	G01F13/00	G01F13/00		139
G01F13/005	9	{comprising a screw conveyor}	G01F13/00	G01F13/00		321
G01F13/006	8	{measuring volume in function of time}	G01F13/00	G01F13/00		583
G01F13/008	8	{taps comprising counting- and recording means (counting devices, counting of objects in general G06M)}	G01F13/00	G01F13/00		190
G01F15/00	7	Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus	G01F15/00	G01F15/00		3423
G01F15/001	8	{Means for regulating or setting the meter for a predetermined quantity}	G01F15/00	G01F15/00		554
G01F15/002	9	{for gases}	G01F15/00	G01F15/00		278
G01F15/003	9	{using electromagnetic, electric or electronic means (G01F15/002, G01F15/02 take precedence)}	G01F15/00	G01F15/00		457
G01F15/005	8	{Valves (valves in general F16K)}	G01F15/00	G01F15/00		1792
G01F15/006	8	{characterised by the use of a particular material, e.g. anti-corrosive material (G01F15/14 takes precedence)}	G01F15/00	G01F15/00		512
G01F15/007	8	{comprising means to prevent fraud}	G01F15/00	G01F15/00		629
G01F15/008	8	{comprising lubricating means}	G01F15/00	G01F15/00		86
G01F15/02	8	Compensating or correcting for variations in pressure, density or temperature	G01F15/02	G01F15/02		910
G01F15/022	9	{using electrical means}	G01F15/02	G01F15/02		345
G01F15/024	10	{involving digital counting}	G01F15/02	G01F15/02		584
G01F15/026	9	{using means to maintain zero differential pressure across the motor (G01F1/08 and G01F1/12 take precedence)}	G01F15/02	G01F15/02		57
G01F15/028	9	{for low flow rates}	G01F15/02	G01F15/02		99
G01F15/04	9	of gases to be measured	G01F15/04	G01F15/04		502
G01F15/043	10	{using electrical means}	G01F15/04	G01F15/04		167
G01F15/046	11	{involving digital counting}	G01F15/04	G01F15/04		210
G01F15/06	8	Indicating or recording devices	G01F15/06	G01F15/06		1509
G01F15/061	9	for remote indication	G01F15/061	G01F15/061		807
G01F15/063	10	using electrical means	G01F15/063	G01F15/063		1995
G01F15/065	9	{with transmission devices, e.g. mechanical}	G01F15/06	G01F15/06		434
G01F15/066	10	{involving magnetic transmission devices}	G01F15/06	G01F15/06		480
G01F15/068	9	{with electrical means (G01F15/063 takes precedence)}	G01F15/06	G01F15/06		542
G01F15/07	8	Integration to give total flow, e.g. using mechanically-operated integrating mechanism	G01F15/07	G01F15/07		770
G01F15/075	9	using electrically-operated integrating means	G01F15/075	G01F15/075		437
G01F15/0755	10	{involving digital counting}	G01F15/075	G01F15/075		721
G01F15/08	8	Air or gas separators in combination with liquid meters; Liquid separators in combination with gas-meters	G01F15/08	G01F15/08		657
G01F15/10	8	Preventing damage by freezing or excess pressure or insufficient pressure	G01F15/10	G01F15/10		1025
G01F15/105	9	{Preventing damage by hydraulic shocks}	G01F15/10	G01F15/10		141
G01F15/12	8	Cleaning arrangements; Filters	G01F15/12	G01F15/12		928
G01F15/125	9	{Filters}	G01F15/12	G01F15/12		709
G01F15/14	8	Casings, e.g. of special material	G01F15/14	G01F15/14		3622
G01F15/16	8	Diaphragms; Bellows; Mountings therefor	G01F15/16	G01F15/16		135
G01F15/18	8	Supports or connecting means for meters	G01F15/18	G01F15/18		2411
G01F15/185	9	{Connecting means, e.g. bypass conduits}	G01F15/18	G01F15/18		2360
G01F17/00	7	Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies (measuring linear dimensions to determine volume G01B)	G01F17/00	G01F17/00		1666
G01F19/00	7	Calibrated capacity measures for fluids or fluent solid material, e.g. measuring cups	G01F19/00	G01F19/00		1884
G01F19/002	8	{Measuring spoons or scoops}	G01F19/00	G01F19/00		535
G01F19/005	8	{for semi-liquid, e.g. fat}	G01F19/00	G01F19/00		90
G01F19/007	8	{for non fluent solid material, e.g. filamentary}	G01F19/00	G01F19/00		65
G01F22/00	7	Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for	G01F22/00	G01F22/00		2063
G01F22/02	8	involving measurement of pressure	G01F22/02	G01F22/02		722
G01F23/00	7	Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm	G01F23/00	G01F23/00		5016
G01F23/0007	8	{for discrete indicating and measuring (G01F23/02&#160;-&#160;G01F23/28 take precedence)}	G01F23/00	G01F23/00		1278
G01F23/0015	9	{with a whistle or other sonorous signal}	G01F23/00	G01F23/00		411
G01F23/0023	8	{with a probe suspended by a wire or thread (with floats G01F23/40)}	G01F23/00	G01F23/00		733
G01F23/003	8	{with a probe suspended by rotatable arms (with floats G01F23/32)}	G01F23/00	G01F23/00		132
G01F23/0038	8	{using buoyant probes (with floats G01F23/30&#160;-&#160;G01F23/76)}	G01F23/00	G01F23/00		440
G01F23/0046	8	{with a stationary probe, where a liquid specimen is separated from the mean mass and measured (by gauge glasses G01F23/02)}	G01F23/00	G01F23/00		209
G01F23/0053	8	{with over-flow pipes}	G01F23/00	G01F23/00		99
G01F23/02	8	by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid	G01F23/02	G01F23/02		2603
G01F23/04	8	by dip members, e.g. dip-sticks	G01F23/04	G01F23/04		1946
G01F23/045	9	{cleaning means therefor (e.g. dip-stick wipers)}	G01F23/04	G01F23/04		286
G01F23/14	8	by measurement of pressure	G01F23/14	G01F23/14		2057
G01F23/16	9	Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid	G01F23/16	G01F23/16		699
G01F23/161	10	{for discrete levels (G01F23/162 - G01F23/165 take precedence)}	G01F23/16	G01F23/16		234
G01F23/162	10	{by a liquid column}	G01F23/16	G01F23/16		538
G01F23/164	10	{using a diaphragm, bellow as transmitting element}	G01F23/16	G01F23/16		394
G01F23/165	10	{of bubbler type}	G01F23/16	G01F23/16		159
G01F23/167	11	{with mechanic or fluid indicating or recording}	G01F23/16	G01F23/16		296
G01F23/168	11	{with electric indicating or recording}	G01F23/16	G01F23/16		131
G01F23/18	9	Indicating, recording or alarm devices actuated electrically	G01F23/18	G01F23/18		1094
G01F23/185	10	{for discrete levels}	G01F23/18	G01F23/18		398
G01F23/20	8	by measurement of weight, e.g. to determine the level of stored liquefied gas	G01F23/20	G01F23/20		857
G01F23/205	9	{for discrete levels}	G01F23/20	G01F23/20		117
G01F23/22	8	by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water (involving the use of floats G01F23/30)	G01F23/22	G01F23/22		1719
G01F23/223	9	{using a melting or dissolving material as a part of alarm-means}	G01F23/22	G01F23/22		31
G01F23/226	9	{measuring the braking of a rotatable element}	G01F23/22	G01F23/22		153
G01F23/24	9	by measuring variations of resistance of resistors due to contact with conductor fluid	G01F23/24	G01F23/24		1114
G01F23/241	10	{for discrete levels}	G01F23/24	G01F23/24		879
G01F23/242	11	{Mounting arrangements for electrodes}	G01F23/24	G01F23/24		632
G01F23/243	11	{Schematic arrangements of probes combined with measuring circuits}	G01F23/24	G01F23/24		511
G01F23/244	12	{comprising oscillating circuits}	G01F23/24	G01F23/24		93
G01F23/245	10	{with a probe moved by an auxiliary power, e.g. meter, to follow automatically the level}	G01F23/24	G01F23/24		217
G01F23/246	10	{thermal devices}	G01F23/24	G01F23/24		543
G01F23/247	11	{for discrete levels}	G01F23/24	G01F23/24		558
G01F23/248	12	{Constructional details; Mounting of probes}	G01F23/24	G01F23/24		284
G01F23/26	9	by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields	G01F23/26	G01F23/26		1111
G01F23/261	10	{for discrete levels}	G01F23/26	G01F23/26		211
G01F23/263	10	by measuring variations in capacitance of capacitors	G01F23/263	G01F23/263		1831
G01F23/265	11	{for discrete levels}	G01F23/263	G01F23/26		755
G01F23/266	11	{measuring circuits therefor}	G01F23/263	G01F23/26		1286
G01F23/268	11	{mounting arrangements of probes}	G01F23/263	G01F23/26		1339
G01F23/28	9	by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material	G01F23/28	G01F23/28		560
G01F23/282	10	{for discrete levels (G01F23/284, G01F23/296 take precedence)}	G01F23/28	G01F23/28		48
G01F23/284	10	Electromagnetic waves	G01F23/284	G01F23/284		3295
G01F23/2845	11	{for discrete levels (G01F23/288, G01F23/292 take precedence)}	G01F23/284	G01F23/284		159
G01F23/288	11	X-rays; Gamma rays {or other forms of ionising radiation}	G01F23/288	G01F23/288		437
G01F23/2885	12	{for discrete levels}	G01F23/288	G01F23/288		131
G01F23/292	11	Light {, e.g. infrared or ultraviolet}	G01F23/292	G01F23/292		2807
G01F23/2921	12	{for discrete levels}	G01F23/292	G01F23/292		699
G01F23/2922	13	{with light-conducting sensing elements, e.g. prisms}	G01F23/292	G01F23/292		316
G01F23/2924	14	{for several discrete levels, e.g. with more than one light-conducting sensing element (G01F23/2927 takes precedence)}	G01F23/292	G01F23/292		118
G01F23/2925	14	{using electrical detecting means}	G01F23/292	G01F23/292		282
G01F23/2927	15	{for several discrete levels, e.g. with more than one light-conducting sensing element}	G01F23/292	G01F23/292		195
G01F23/2928	13	{using light reflected on the material surface}	G01F23/292	G01F23/292		364
G01F23/296	10	Acoustic waves	G01F23/296	G01F23/296		2010
G01F23/2961	11	{for discrete levels (G01F23/2962&#160;-&#160;G01F23/2968 take precedence)}	G01F23/296	G01F23/296		393
G01F23/2962	11	Measuring transit time of reflected waves	G01F23/2962	G01F23/2962		1587
G01F23/2963	12	{magnetostrictive}	G01F23/2962	G01F23/296		96
G01F23/2965	11	Measuring attenuation of transmitted waves	G01F23/2965	G01F23/2965		303
G01F23/2966	11	{making use of acoustical resonance or standing waves}	G01F23/296	G01F23/296		428
G01F23/2967	12	{for discrete levels}	G01F23/296	G01F23/296		542
G01F23/2968	11	{Transducers specially adapted for acoustic level indicators}	G01F23/296	G01F23/296		427
G01F23/30	8	by floats	G01F23/30	G01F23/30		1373
G01F23/303	9	{characterised by means to prevent fault-level readings due to turbulence of the fluid, e.g. special float housings}	G01F23/30	G01F23/30		157
G01F23/306	9	{using radioactive radiation}	G01F23/30	G01F23/30		17
G01F23/32	9	using rotatable arms or other pivotable transmission elements	G01F23/32	G01F23/32		655
G01F23/34	10	using mechanically actuated indicating means {(G01F23/38 takes precedence)}	G01F23/34	G01F23/34		796
G01F23/345	11	{using pneumatically or hydraulically actuated indicating means}	G01F23/34	G01F23/34		50
G01F23/36	10	using electrically actuated indicating means {(G01F23/38 takes precedence)}	G01F23/36	G01F23/36		1236
G01F23/363	11	{using electromechanically actuated indicating means}	G01F23/36	G01F23/36		262
G01F23/366	11	{using optoelectrically actuated indicating means}	G01F23/36	G01F23/36		67
G01F23/38	10	using magnetically actuated indicating means	G01F23/38	G01F23/38		581
G01F23/40	9	using bands or wires as transmission elements	G01F23/40	G01F23/40		307
G01F23/42	10	using mechanically actuated indicating means	G01F23/42	G01F23/42		603
G01F23/425	11	{using pneumatically or hydraulically actuated indicating means}	G01F23/42	G01F23/42		9
G01F23/44	10	using electrically actuated indicating means	G01F23/44	G01F23/44		425
G01F23/443	11	{using electromechanically actuated indicating means}	G01F23/44	G01F23/44		49
G01F23/446	11	{using opto-electrically actuated indicating means}	G01F23/44	G01F23/44		71
G01F23/46	10	using magnetically actuated indicating means	G01F23/46	G01F23/46		109
G01F23/48	9	using twisted spindles as transmission elements	G01F23/48	G01F23/48		24
G01F23/50	10	using mechanically actuated indicating means	G01F23/50	G01F23/50		214
G01F23/505	11	{using hydraulically or pneumatically actuated indicating means}	G01F23/50	G01F23/50		2
G01F23/52	10	using electrically actuated indicating means	G01F23/52	G01F23/52		59
G01F23/523	11	{using electromechanically actuated indicating means}	G01F23/52	G01F23/52		3
G01F23/526	11	{using opto-electrically actuated indicating means}	G01F23/52	G01F23/52		4
G01F23/54	10	using magnetically actuated indicating means	G01F23/54	G01F23/54		19
G01F23/543	11	{using magnets only as coupling means in a mechanical transmission path}	G01F23/54	G01F23/54		9
G01F23/546	11	{using magnets only for directly actuating of switches}	G01F23/54	G01F23/54		9
G01F23/56	9	using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements	G01F23/56	G01F23/56		642
G01F23/58	10	using mechanically actuated indicating means	G01F23/58	G01F23/58		771
G01F23/585	11	{using pneumatically or hydraulically actuated indicating means}	G01F23/58	G01F23/58		58
G01F23/60	10	using electrically actuated indicating means	G01F23/60	G01F23/60		549
G01F23/603	11	{using electromechanically actuated indicating means}	G01F23/60	G01F23/60		139
G01F23/606	11	{using opto-electrically actuated indicating means}	G01F23/60	G01F23/60		95
G01F23/62	10	using magnetically actuated indicating means	G01F23/62	G01F23/62		432
G01F23/64	9	of the free float type {without mechanical transmission elements}	G01F23/64	G01F23/64		750
G01F23/66	10	using mechanically actuated indicating means	G01F23/66	G01F23/66		343
G01F23/665	11	{using pneumatically or hydraulically actuated indicating means}	G01F23/66	G01F23/66		39
G01F23/68	10	using electrically actuated indicating means	G01F23/68	G01F23/68		656
G01F23/683	11	{using electromechanically actuated indicating means}	G01F23/68	G01F23/68		88
G01F23/686	11	{using opto-electrically actuated indicating means}	G01F23/68	G01F23/68		212
G01F23/70	11	for sensing changes in level only at discrete points	G01F23/70	G01F23/70		432
G01F23/703	12	{using electromechanically actuated indicating means}	G01F23/70	G01F23/70		80
G01F23/706	12	{using opto-electrically actuated indicating means}	G01F23/70	G01F23/70		94
G01F23/72	10	using magnetically actuated indicating means	G01F23/72	G01F23/72		952
G01F23/74	11	for sensing changes in level only at discrete points	G01F23/74	G01F23/74		848
G01F23/76	9	characterised by the construction of the float	G01F23/76	G01F23/76		998
G01F23/80	8	Arrangements for signal processing	G01F23/80	G01F23/80		1508
G01F23/802	9	{Particular electronic circuits for digital processing equipment}	G01F23/80	G01F23/80		722
G01F23/804	10	{containing circuits handling parameters other than liquid level}	G01F23/80	G01F23/80		1118
G01F23/806	9	{Particular electronic circuits for handling non-digital processing equipment}	G01F23/80	G01F23/80		76
G01F23/808	10	{containing circuits handling parameters other than liquid level}	G01F23/80	G01F23/80		91
G01F25/00	7	Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume	G01F25/00	G01F25/00		719
G01F25/0084	8	{for measuring volume}	G01F25/00	G01F25/00		341
G01F25/0092	8	{for metering by volume}	G01F25/00	G01F25/00		371
G01F25/10	8	of flowmeters	G01F25/10	G01F25/10		3555
G01F25/11	9	{using a seal ball or piston in a test loop}	G01F25/10	G01F25/11		278
G01F25/12	9	{using tracer}	G01F25/10	G01F25/12		27
G01F25/13	9	{using a reference counter}	G01F25/10	G01F25/13		327
G01F25/14	9	{using a weighing apparatus}	G01F25/10	G01F25/14		194
G01F25/15	9	{specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence)}	G01F25/10	G01F25/15		936
G01F25/17	9	using calibrated reservoirs	G01F25/17	G01F25/17		330
G01F25/20	8	of apparatus for measuring liquid level	G01F25/20	G01F25/20		1639
G01F25/22	9	{Checking proper indicating of discrete level by floats}	G01F25/20	G01F25/22		96
G01F25/24	9	{Testing proper functioning of electronic circuits}	G01F25/20	G01F25/24		202
