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Class Information
Number: 173/94
Name: Tool driving or impacting > Impacting devices (e.g., hammers) > Hammer head moves in arcuate path or rotates
Description: Apparatus in which the hammer, or a portion thereof, travels substantially upon some portion of a path generated by a point moving at a constant distance about a relatively fixed axis.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6481509 |
Impact generator |
Nov. 19, 2002 |
| 6250401 |
Rotary impacting apparatus |
Jun. 26, 2001 |
| 5921300 |
Log-splitting device |
Jul. 13, 1999 |
| 5667038 |
System and method of conversion of gravitation in this impulse of force |
Sep. 16, 1997 |
| 5554210 |
Suspension device and a rapping mechanism for electrodes in an electrostatic precipitator |
Sep. 10, 1996 |
| 5488997 |
Rotary impacting apparatus |
Feb. 6, 1996 |
| 5051119 |
Rapping mechanism for precipitator electrodes |
Sep. 24, 1991 |
| 5002134 |
Rotary impacting apparatus |
Mar. 26, 1991 |
| 4979574 |
Punch tool apparatus and method |
Dec. 25, 1990 |
| 4884641 |
Backhoe hammer |
Dec. 5, 1989 |
| 4794830 |
Tool for loosening fasteners |
Jan. 3, 1989 |
| 4732506 |
Surface crushing apparatus |
Mar. 22, 1988 |
| 4708209 |
Manually operated impact driver |
Nov. 24, 1987 |
| 4624324 |
Turning mechanism operating alternately in opposite directions to facilitate the driving in or extracting of piles |
Nov. 25, 1986 |
| 4603747 |
Apparatus for removing internal tiles from chimneys |
Aug. 5, 1986 |
| 4557337 |
Impact wrench |
Dec. 10, 1985 |
| 4511282 |
Pavement penetrating tool |
Apr. 16, 1985 |
| 4460049 |
Impact wrench |
Jul. 17, 1984 |
| 4433736 |
Device for avoiding secondary impacts resulting from the bounces of a mass against a target-member |
Feb. 28, 1984 |
| 4278295 |
Impacting rock breaker |
Jul. 14, 1981 |
| 4144939 |
Apparatus for converting centrifugal energy into percussive energy |
Mar. 20, 1979 |
| 4084645 |
Apparatus for securing T-edging and similar edging bands |
Apr. 18, 1978 |
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