| Patents for B25D 15 - Portable percussive tools using centrifugal or rotary impact elements (325) |
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| 03/27/2002 | EP1190155A1 Rock drill and mounting frame |
| 02/06/2002 | CN1334177A Rotating percussive tool with double hammer mechanism |
| 01/23/2002 | EP1174222A2 Rotary impact tool having a twin hammer mechanism |
| 01/09/2002 | CN2470067Y Tyre steel-wire cold-rolling device |
| 01/01/2002 | US6334494 Control unit for hydraulic impact wrench |
| 12/12/2001 | EP1162037A1 Rotary percussion device for a drill string |
| 10/24/2001 | CN1073495C Impact tool driver |
| 09/30/2001 | CA2303648A1 Percussion tool |
| 07/11/2001 | EP1114700A2 Cam drive mechanism |
| 06/26/2001 | US6250401 Rotary impacting apparatus |
| 06/07/2001 | DE19958420A1 Sprung striking tool has cam shaft coaxial with torsional leg spring, coupling and sleeve |
| 05/08/2001 | US6227308 Reversible impact mechanism with structure limiting hammer travel |
| 05/01/2001 | US6223834 Impact structure for impact power tool |
| 04/18/2001 | EP0951377A4 Impact tool driver |
| 04/10/2001 | US6213222 Cam drive mechanism |
| 03/14/2001 | CN1287521A Clamping control device of hydraulic pulse |
| 02/27/2001 | US6192995 Rotary impacting apparatus |
| 01/11/2001 | WO2001002691A1 Rock drill and mounting frame |
| 12/12/2000 | US6158526 Reversible impact mechanism with structure limiting hammer travel |
| 11/02/2000 | EP1048414A1 Clamping control device of hydraulic pulse |
| 09/13/2000 | CN1265955A Reversible type percussive mechanism with structure for limiting hammer stroke |
| 07/11/2000 | US6085850 Miniature impact tool |
| 06/06/2000 | US6070674 Modified cage member for an impact mechanism |
| 04/20/2000 | WO2000021719A1 Clamping control device of hydraulic pulse |
| 04/11/2000 | US6047779 Twin lobe impact mechanism |
| 01/19/2000 | CN1241957A Impact tool driver |
| 01/12/2000 | CN1241154A Rotary impact tool with involute profile hammer |
| 12/22/1999 | CN1239028A Modified cage member for impact mechanism |
| 12/21/1999 | US6003618 Twin lobe impact mechanism |
| 11/24/1999 | CN1236338A Impact tool driver |
| 10/27/1999 | EP0951377A1 Impact tool driver |
| 09/22/1999 | EP0942809A1 Impact tool driver |
| 09/15/1999 | EP0941153A1 Rotary impact tool with involute profile hammer |
| 06/01/1999 | US5908076 For a drive spindle of a power tool |
| 05/25/1999 | US5906244 Rotary impact tool with involute profile hammer |
| 04/15/1999 | WO1999017909A1 Rotary impact tool with involute profile hammer |
| 04/15/1999 | CA2273251A1 Rotary impact tool with involute profile hammer |
| 02/18/1999 | WO1999007521A1 Impact tool driver |
| 02/03/1999 | EP0894576A2 Twin lobe impact mechanism |
| 01/29/1999 | CA2242446A1 Twin lobe impact mechanism |
| 11/17/1998 | US5836403 For applying intermittent torque impulses to a load |
| 11/11/1998 | CN2296801Y Electromagnetic impacting chisel |
| 07/16/1998 | WO1998030365A1 Impact tool driver |
| 05/06/1998 | EP0839612A1 Reversible high impact mechanism |
| 04/30/1998 | CA2219697A1 Reversible high impact mechanism |
| 01/06/1998 | US5704434 Hydraulic torque impulse mechanism |
| 07/08/1997 | US5645130 Hydraulic torque impulse mechanism |
| 07/05/1997 | CA2166566A1 Pneumatic stamping machine |
| 04/22/1997 | US5622230 Rotary impact wrench clutch improvement |
| 07/17/1996 | EP0721823A1 Hydraulic torque impulse mechanism |
| 07/03/1996 | EP0719618A1 Hydraulic torque impulse mechanism |
| 02/06/1996 | US5488997 Rotary impacting apparatus |
| 04/19/1995 | EP0648582A1 Rotary impacting apparatus |
| 01/25/1995 | CN2188004Y Energy accumulation impacting mechanism |
| 03/03/1994 | DE4328599A1 Rotary impact-type powered screw or nut driver - has clutch between motor and hammer drive spindle which can be set to open at desired torque limit depending on size of screw or nut |
| 01/14/1992 | US5080180 Torque impulse power tool |
| 03/26/1991 | US5002134 Rotary impacting apparatus |
| 11/06/1990 | US4967852 Oil pressure type impulse torque generator for wrench |
| 01/31/1990 | EP0353106A2 Oil pressure type impulse torque generator for wrench |
| 01/23/1990 | EP0237550A4 Impact device. |
| 09/19/1989 | US4867251 Impact device |
| 08/08/1989 | US4854916 Hydraulic torque impulse generator with bypass mechanism |
| 06/06/1989 | US4836296 Fluid pressure impulse nut runner |
| 04/04/1989 | US4817736 Pheumatic impact imparting tool |
| 03/14/1989 | US4811797 Impact wrench |
| 02/21/1989 | US4805706 Rotary impact apparatus |
| 01/03/1989 | US4794993 Manual torque magnifying impact tool |
| 12/21/1988 | EP0295563A2 Rotary impacting apparatus |
| 12/06/1988 | US4789373 Hydraulic torque impulse generator |
| 10/18/1988 | CA1243199A1 Apparatus for removing internal tiles from chimneys |
| 08/02/1988 | US4761151 Hydraulic torque impulse generator |
| 05/24/1988 | US4745980 Auto-hammer driver |
| 04/05/1988 | US4735595 Hydraulic torque impulse tool |
| 01/27/1988 | EP0254699A1 Hydraulic torque impulse generator |
| 11/24/1987 | US4708209 Manually operated impact driver |
| 10/28/1987 | EP0243334A1 Hydraulic torque impulse generator with bypass means |
| 09/23/1987 | EP0237550A1 Impact device |
| 09/02/1987 | EP0235102A1 Hydraulic torque impulse generator |
| 08/04/1987 | US4683961 Hydraulic torque impulse motor |
| 03/12/1987 | WO1987001325A1 Impact device |
| 03/04/1987 | EP0212070A2 Hand tool with an oscillating driving shaft |
| 10/14/1986 | US4616716 Synchronous vibratory impact hammer |
| 08/05/1986 | US4603747 Apparatus for removing internal tiles from chimneys |
| 07/09/1986 | EP0187129A2 Hydraulic torque impulse tool |
| 06/25/1986 | EP0185639A2 Hydraulic torque impulse tool |
| 06/10/1986 | US4593767 Impact device |
| 04/29/1986 | US4585078 Rotary impact tool |
| 02/26/1986 | EP0058677B1 Impact device |
| 01/15/1986 | EP0167760A1 Oscillating drive for utensils and tools |
| 11/19/1985 | US4553948 Oil pressure type pneumatic torque wrench |
| 09/17/1985 | CA1193498A1 Synchronous vibratory impact hammer |
| 08/06/1985 | US4533337 Hydraulic torque impulse tool |
| 06/11/1985 | CA1188497A1 Impact device |
| 04/04/1984 | EP0105038A1 A hydraulic torque impulse tool |
| 09/21/1983 | EP0089140A2 Synchronous vibratory impact hammer |
| 05/10/1983 | US4382715 Mass compensated impacting apparatus |
| 05/10/1983 | US4382476 Manual torque magnifying impact tool |
| 01/04/1983 | CA1138692A1 Impact wrench mechanism and pivot clutch therefor |
| 11/25/1982 | EP0058677A4 Impact device. |
| 09/07/1982 | US4347902 Rotary impact wrench clutch |