| Patents for B25D 11 - Portable percussive tools with electromotor drive (2,197) |
|---|
| 12/02/1992 | EP0515371A1 Hand-held machine tool. |
| 11/19/1992 | EP0513269A1 Hand-held power tool with eccentric drive |
| 11/10/1992 | US5161624 Tool for driving fastening elements into hard receiving materials |
| 11/10/1992 | US5161623 Percussion device |
| 11/03/1992 | US5159814 Pneumatic impulse motor with gas cushion |
| 08/19/1992 | EP0499459A2 Powered tool |
| 08/13/1992 | DE4103196A1 Thrust bore earth drilling machine - has hammer action applied to boring tool |
| 06/25/1992 | WO1992010338A1 Hand-held power tool with eccentric drive |
| 06/11/1992 | DE4038586A1 Handwerkzeugmaschine mit exzentergetriebe Hand tool with eccentric |
| 06/02/1992 | US5117923 Hydraulic jackhammer |
| 05/19/1992 | US5113951 Apparatus for driving a drilling or percussion tool |
| 05/12/1992 | US5111890 Hammer drill |
| 04/01/1992 | EP0477576A2 Impact drilling machine |
| 03/31/1992 | US5099926 Impact tool |
| 03/24/1992 | US5097913 Portable percussive machine |
| 03/18/1992 | EP0474651A1 Drill or percussion tool with coupling in the percussion drive. |
| 02/18/1992 | US5088566 Hand held hammer machine |
| 01/28/1992 | US5083499 Impact motor with improved sealing of a drive piston |
| 01/09/1992 | WO1992000165A1 A cutting tool |
| 12/31/1991 | CA1293657C Impacting mechanism |
| 11/05/1991 | USRE33733 Device for driving a drilling and/or impacting tool |
| 10/22/1991 | US5059204 Ocular cutter with enhanced cutting action |
| 10/02/1991 | EP0449766A1 Tool for beating down of fasteners in hard material |
| 10/02/1991 | DE4010031A1 Motor driven force pulse generator - has reversing piston located inside enclosed oscillating cylinder and sandwiched between two gas cushioning chambers |
| 10/02/1991 | CN1054929A Device for hammering fastening elements into hard material |
| 10/01/1991 | US5052498 Portable hammer machine |
| 10/01/1991 | US5052497 Apparatus for driving a drilling or percussion tool |
| 09/26/1991 | DE4008750A1 Fixing device-driving tool - incorporates rotary drill and bolt-setting mechanism |
| 09/24/1991 | US5050687 Compression-vacuum action percussive machine |
| 09/20/1991 | CA2038483A1 Tool for driving fastening elements into hard receiving materials |
| 09/17/1991 | US5048618 Hammer machine |
| 09/04/1991 | EP0444030A1 Drilling hammer. |
| 08/27/1991 | US5042592 Power tool |
| 08/22/1991 | WO1991012116A1 Hand-held machine tool |
| 08/06/1991 | US5036925 Rotary hammer with variable hammering stroke |
| 07/24/1991 | EP0438029A1 Percussive device |
| 07/24/1991 | EP0437716A1 Electrically driven handtool |
| 06/25/1991 | US5025869 Impact drill |
| 06/05/1991 | EP0429475A1 Hammer drill or concrete breaker. |
| 05/08/1991 | EP0426633A2 Portable hammer machine |
| 05/08/1991 | EP0426632A2 Impact motor |
| 05/08/1991 | EP0426631A2 Hammer machine |
| 05/08/1991 | EP0426630A2 Portable percussive machine |
| 05/08/1991 | EP0426629A2 Hand held hammer machine |
| 05/02/1991 | EP0424945A1 Cutter for ocular surgery |
| 04/27/1991 | CA2028466A1 Ocular cutter with enhanced cutting action |
| 04/10/1991 | EP0421121A2 Electrically driven hammer |
| 04/04/1991 | DE3932134A1 Motor driven hammer - has indirect air cushion striker action which can be adjusted from outside |
| 04/03/1991 | EP0419866A2 Drill hammer |
| 03/27/1991 | EP0318480B1 Device for switching off percussion tools |
| 03/26/1991 | US5002134 Rotary impacting apparatus |
| 02/12/1991 | US4991664 Compression-vacuum percussive action machine |
| 01/17/1991 | DE3922357A1 Adjustable electropneumatic hammer drill - incorporates system to vary stroke of piston which actuates hammer head |
| 01/15/1991 | US4984640 Power post driver and hammer |
| 12/19/1990 | CN1047822A 动力工具 Power Tools |
| 12/13/1990 | WO1990014929A1 Drill or percussion tool with coupling in the percussion drive |
| 11/13/1990 | CA1276083C Boom operated demolition apparatus and method of breaking composite material |
| 10/04/1990 | DE3910599A1 Drilling and/or percussion hammer |
| 10/04/1990 | DE3910598A1 Hammer with air spring percussion mechanism |
| 09/19/1990 | EP0388383A1 Hammer machine |
| 09/16/1990 | CA2011631A1 Hammer machine |
| 07/18/1990 | EP0378045A1 Hydraulic drill hammer |
| 07/18/1990 | EP0377754A1 Stroke-action device |
| 07/04/1990 | EP0375720A1 Electric power tool and adapter |
| 06/12/1990 | US4932479 Vacuum-compression type percussion power tool with a pumping chamber |
| 05/16/1990 | CN1042215A Air spring percussive tool |
| 04/19/1990 | WO1990003870A1 Dampener for impacting mechanism |
| 04/11/1990 | EP0258275B1 Boom operated demolition apparatus |
| 04/05/1990 | WO1990003252A1 Compression-vacuum percussion device |
| 03/21/1990 | EP0358978A1 Rotary hammer |
| 02/22/1990 | WO1990001612A1 Compression-vacuum percussion machine |
| 02/22/1990 | WO1990001400A1 Hammer drill or concrete breaker |
| 01/23/1990 | US4895212 Rotary hammer |
| 01/23/1990 | EP0237550A4 Impact device. |
| 12/14/1989 | WO1989011955A1 Drilling hammer |
| 12/14/1989 | WO1989011954A1 Stroke-action device |
| 12/14/1989 | DE3819125A1 Bohrhammer Rotary Hammer |
| 12/13/1989 | EP0345896A2 Device for driving a drilling and/or percussion tool |
| 10/05/1989 | WO1989009117A1 Impacting mechanism |
| 09/19/1989 | US4867253 Dampener for impacting mechanism |
| 09/19/1989 | US4867251 Impact device |
| 09/06/1989 | EP0331619A2 Rotary hammer |
| 08/24/1989 | DE3804026A1 Power-driven chisel or drill hammer |
| 08/01/1989 | US4852662 Impacting mechanism |
| 08/01/1989 | US4852661 Portable concrete hammer |
| 07/06/1989 | DE3743333A1 Motor-driven chiselling or drilling hammer |
| 06/14/1989 | CN1004476B Hand-percussion drill with prevention twist driving medium |
| 06/13/1989 | US4838363 Rock-breaking apparatus |
| 06/07/1989 | EP0318480A1 Device for switching off percussion tools. |
| 05/09/1989 | US4828046 Vacuum-compression type percussion power tool with an auxiliary chamber |
| 04/25/1989 | US4823886 Vacuum-compression type percussion power tool |
| 04/04/1989 | US4817736 Pheumatic impact imparting tool |
| 03/09/1989 | WO1989001848A1 Electric power tool and adapter |
| 02/21/1989 | US4805706 Rotary impact apparatus |
| 01/24/1989 | US4799557 Electromagnetic pile driver |
| 01/17/1989 | US4798249 Lockable striking mechanism for hammer drill |
| 12/28/1988 | EP0185744B1 A method and a tool for increasing the width in the clear of a chimney |
| 12/21/1988 | EP0295563A2 Rotary impacting apparatus |
| 12/08/1988 | DE3717694A1 Hammer drill |
| 11/22/1988 | US4785893 Boom operated demolition apparatus and method of breaking composite material |