| Patents for B25D 11 - Portable percussive tools with electromotor drive (2,197) |
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| 11/09/1988 | EP0290375A1 Apparatus for the metrological control of the driving-in of a cement-free implantable stem prosthesis |
| 10/19/1988 | EP0286680A1 Hammering device |
| 10/18/1988 | CA1243199A1 Apparatus for removing internal tiles from chimneys |
| 09/15/1988 | DE3707052A1 Method for interrupting the drive activity, in particular rotary-drive activity, of a powered hand tool |
| 09/15/1988 | DE3707051A1 Method for interrupting the drive activity, in particular at least the percussive-drive activity, of a powered hand tool |
| 09/13/1988 | US4770254 Rotary hammer with body having detachable sections |
| 08/31/1988 | EP0280195A2 Percussion apparatus with tool holder |
| 08/30/1988 | US4766963 Hand-held hammer tool |
| 07/27/1988 | EP0176510B1 Apparatus for briefly storing and impulsively releasing mechanical energy |
| 07/26/1988 | US4759412 Rock breaking device |
| 06/14/1988 | US4750567 Rotary hammer driving mechanism |
| 05/31/1988 | US4747466 Impact tool |
| 05/31/1988 | US4747455 High impact device and method |
| 05/26/1988 | DE3448189C2 Hammer drill |
| 05/17/1988 | US4744423 Piezoelectric high voltage impact mechanism |
| 05/10/1988 | US4742875 Motor-driven hammer |
| 05/04/1988 | EP0266305A1 Drillhammer with percussion mechanism |
| 04/21/1988 | WO1988002666A1 Hammering device |
| 04/21/1988 | DE3634282A1 Power-driven hammer drill |
| 04/14/1988 | DE3634593A1 Hammer drill with an air-cushion percussive mechanism |
| 04/12/1988 | CA1235003A1 Device for driving a drilling and/or impacting tool |
| 03/30/1988 | EP0164366B1 A material working machine |
| 03/22/1988 | US4732220 Apparatus for briefly and impulsively releasing mechanical energy |
| 03/22/1988 | US4732219 Hammer drill with pneumatically driven percussion piston |
| 03/22/1988 | US4732217 Hammer drill |
| 03/09/1988 | EP0258275A1 Boom operated demolition apparatus. |
| 03/02/1988 | EP0257174A2 Mechanism for blocking the drill spindle of a hand-held rotary percussion drill |
| 02/25/1988 | WO1988001219A1 Device for switching off percussion tools |
| 02/23/1988 | US4726430 Device for driving a drilling and/or impacting tool |
| 02/18/1988 | DE3627869A1 Schlagwerkabschaltung Percussion shutdown |
| 01/19/1988 | US4719976 Hammer drill |
| 01/07/1988 | DE3621182A1 Powered hand tool, in particular hammer and/or percussion drill |
| 11/24/1987 | US4708209 Manually operated impact driver |
| 11/19/1987 | EP0245572A2 Rock breaking apparatus |
| 10/15/1987 | DE3611890A1 Drive for the percussion mechanism of an electropneumatic rotary percussive hammer drill |
| 09/29/1987 | CA1227385A1 Electropneumatic hammer drill |
| 09/23/1987 | EP0237550A1 Impact device |
| 08/27/1987 | WO1987005064A1 Boom operated demolition apparatus and method of breaking composite material |
| 07/14/1987 | US4679337 Material working machine with vibrating tool carrier |
| 07/01/1987 | EP0226644A1 Rotary hammer |
| 06/19/1987 | DE3544516A1 Drive for the percussion mechanism of an electropneumatic rotary percussion hammer drill |
| 06/16/1987 | CA1222956A1 Many-uses portable equipment particularly suitable for driving rotating tools, as well as percussion and rotating tools, and percussion tools only |
| 06/02/1987 | US4669552 Power driving apparatus |
| 06/02/1987 | US4669551 Electropneumatic hammer drill |
| 05/20/1987 | EP0222698A1 Drill hammer with an air-driven impacting piston |
| 04/23/1987 | DE3537254A1 Electropneumatic rotary percussion hammer drill for working rock, concrete and similar materials |
| 04/15/1987 | EP0218547A2 Drilling or chiseling hammer |
| 04/14/1987 | US4657088 Rotary hammer driving mechanism |
| 03/12/1987 | WO1987001325A1 Impact device |
| 02/24/1987 | US4645015 Powered impact instrument |
| 02/10/1987 | US4641714 Multiuse portable equipment for driving rotating tools, rotating percussion tools and percussion tools |
| 01/22/1987 | DE3526162A1 Hammer drill as well as hammer-drill tool |
| 01/08/1987 | DE3523100A1 Hammer drill |
| 11/05/1986 | EP0199883A2 Motor-driven hand tool |
| 10/22/1986 | EP0094403B1 Rock breaking apparatus |
| 10/14/1986 | US4616716 Synchronous vibratory impact hammer |
| 09/23/1986 | US4612999 Percussion tool |
| 09/16/1986 | US4611670 Motor driven drilling or chipping device |
| 09/02/1986 | US4609053 Hammer tool |
| 08/05/1986 | US4603923 Inner race for a swashplate mechanism |
| 08/05/1986 | US4603747 Apparatus for removing internal tiles from chimneys |
| 07/29/1986 | US4602689 Power tool |
| 07/22/1986 | US4601351 Electrically driven hammer machine |
| 07/22/1986 | US4601350 Electrically-operated multi-needle chisel tool |
| 07/02/1986 | EP0185744A1 A method and a tool for increasing the width in the clear of a chimney. |
| 06/18/1986 | CN85202230U Hand-held viberating spade |
| 06/10/1986 | US4593767 Impact device |
| 05/27/1986 | CA1205165A1 Electrically driven hammer machine |
| 05/20/1986 | CA1204729A1 Device for driving and extracting piles, tubes, rods etc. |
| 04/15/1986 | US4582144 Percussive tools |
| 04/10/1986 | CN85106839A Hand-percussion drill with prevention twist driving medium |
| 04/09/1986 | EP0176510A1 Apparatus for briefly storing and impulsively releasing mechanical energy. |
| 03/25/1986 | US4577547 Impact tool |
| 03/25/1986 | CA1202203A1 Hand-held hammer tool |
| 02/26/1986 | EP0058677B1 Impact device |
| 02/05/1986 | EP0170030A1 Electric tacker |
| 02/04/1986 | US4567951 Hammer drill |
| 01/16/1986 | WO1986000391A1 A method and a tool for increasing the width in the clear of a chimney or the like |
| 01/07/1986 | US4562974 Rock breaking apparatus |
| 01/07/1986 | CA1198913A1 Hammer tool |
| 12/18/1985 | EP0164366A1 A material working machine. |
| 11/12/1985 | US4553074 Method of and apparatus for the autosynchronization of an electromagnetic hammer |
| 09/17/1985 | CA1193498A1 Synchronous vibratory impact hammer |
| 08/27/1985 | US4537264 Power-driven hand tool |
| 07/16/1985 | US4529044 Electropneumatic hammer drill or chipping hammer |
| 06/19/1985 | EP0145070A2 Device for driving a drilling and/or impacting tool |
| 06/11/1985 | CA1188497A1 Impact device |
| 06/06/1985 | WO1985002427A1 A material working machine |
| 05/29/1985 | EP0143086A2 Multi-use hand held equipment for driving tools |
| 04/03/1985 | EP0135654A1 Guide of the piston of a hand-held air cushion percussion drill |
| 02/05/1985 | US4497380 Hand-held power tools including bearing supports for components undergoing linear movement |
| 01/02/1985 | EP0129865A1 Percussive tool, particularly a hammer drill |
| 12/25/1984 | US4489792 Hammer drill adapter |
| 12/18/1984 | US4489261 Method and means for feeding electric energy to a portable power tool |
| 12/11/1984 | US4487272 Impacting drill |
| 11/22/1984 | WO1984004571A1 A method and apparatus for briefly storing and impulsively releasing mechanical energy |
| 11/07/1984 | EP0094403A4 Rock breaking apparatus. |
| 08/28/1984 | US4468594 Electromagnetic percussion implement |
| 06/26/1984 | US4456076 Power-driven hand tool |
| 05/29/1984 | US4450919 Drill attachment |