B25D - Definition 
Definition statement
This subclass covers:
Hand tools for carrying out strokes, e.g. hammers or picks.
Hand tools for transmitting strokes, e.g. chisels or punches.
Portable power-driven percussive tools with fluid-pressure drive, electromotor drive or electromagnetic drive, e.g. compressed-air hammers.
Portable percussive tools using centrifugal or rotary impact elements.
Portable percussive machines with superimposed rotation, e.g. drill hammers.
Details of, or accessories for, portable power-driven percussive tools.
Relationship between large subject matter areas
This subclass is a function-oriented place for classifying percussive hand tools and portable power-driven percussive tools, the primary function of which is to generate percussive action.
Hand tools and portable power-driven tools with percussive action for supporting another primary function, e.g. cutting or drilling, are classified in the relevant places for the primary function. For example, hand-held cutting tools employing percussive action for cutting, such as axes or hatchets, are classified in B26B 23/00. Impact drilling machines with percussive action for supporting the drilling operation are classified in B23B 45/16.
Hand tools and portable power-driven tools with percussive action which are specially adapted or used for a particular purpose are classified in the relevant application-oriented places. For example, hand tools especially for nailing or stapling are classified in subclass B25C, e.g. nail punches. Pick hammers and chisels especially for mining or quarrying are classified in E21C 37/24 and E21C 37/26. Mortise chisels for wood-working are classified in B27G 17/08.
References relevant to classification in this subclass
This subclass does not cover:
Non-abrasive sharpening devices for scythes, sickles, or the like with percussive tools | A01D 3/02 |
Hand-operated implements for threshing | A01F 5/00 |
Meat pounders | A22C 9/00 |
Carpet beaters | A47L 13/36 |
Instruments for medical or veterinary examination by percussion | A61B 9/00 |
Hand-held nailing or stapling tools | B25C |
Combination or multi-purpose hand tools not otherwise provided for | B25F 1/00 |
Mortise chisels for wood-working | B27G 17/08 |
Pick hammers for mining or quarrying, specially adapted for dislodging minerals | E21C 37/24 |
Chisels for mining or quarrying | E21C 37/26 |
Informative references
Attention is drawn to the following places, which may be of interest for search:
Golf clubs | A63B 53/00 |
Bats, rackets, or the like, for other games | A63B 59/00 |
Disintegrating by mills having rotary beater elements | B02C 13/00 |
Processes or apparatus for generating mechanical vibrations making use of mechanical energy | B06B 1/10 |
Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering | B21D 31/06 |
Forging machines with hammers or die jaws acting by impact | B21J 7/00, B21J 11/00 |
Hand-held drilling machines with superimposed percussive action | B23B 45/16 |
Treating or finishing surfaces by hammering | B23P 9/04 |
Impact wrenches or screwdrivers | B25B 19/00 |
Portable power-driven screw or nut setting or loosening tools with means for imparting impact to screwdriver blade or nut socket | B25B 21/02 |
Hand tools for fitting together or separating parts employing impacting means | B25B 27/067 |
Axes or hatches | B26B 23/00 |
Working stone or stone-like materials by impact tools, e.g. by chisels | B28D 1/26 |
Knocking devices for preventing bridge formation in large containers | B65D 88/66 |
Tamping apparatus for consolidating or finishing laid-down unset paving material | E01C 19/30 |
Tampers for compacting soil | E02D 3/046 |
Methods or apparatus for placing sheet pile bulkheads, piles, mould-pipes, or other moulds by driving | E02D 7/00 |
Percussion drilling of earth or rock | E21B 1/00, E21B 4/06, E21B 6/00, E21B 10/36 |
Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts | E21B 31/107 |
Cutting machines slitting solely by one or more percussive tools moved through the seam in mining or quarrying applications | E21C 25/02 |
Percussion or firing pins or hammers of firearms | F41A 19/13, F41A 19/14 |
Batons, truncheons, sticks, shillelaghs | F41B 15/02 |
Percussive musical instruments | G10D 13/00 |
Clappers or other strikers for bells | G10K 1/10 |
Glossary of terms
In this subclass, the following terms or expressions are used with the meaning indicated:
| Hand hammer | Hand tool for carrying out a stroke with a striking face which is not intended to penetrate the material or object to be struck. |
| Pick | Hand tool for carrying out a stroke with a pointed striking tip or edge which is intended to penetrate the material or object to be struck. |