| Patents for B25D 16 - Portable percussive machines with superimposed rotation (2,122) |
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| 09/29/1993 | EP0303651B1 Process for interrupting the operation of a hand tool, in particular percussion and/or rotation thereof |
| 09/02/1993 | DE4205840A1 Spindle lock for hammer drill with chisel function - is effected by bringing sliding gear cluster of spindle drive transmission into mesh with teeth of locking segment fixed to housing |
| 08/10/1993 | US5234294 Drilling device for producing drilled holes with undercuts |
| 08/05/1993 | DE4202767A1 Hammer drill with electric motor for driving pneumatic hammer mechanism and drill - has armature shaft vertical to rotation axis of shaft system rotating drill bit and vertical rear shaft for hammer mechanism also vertical front shaft for drill bit |
| 07/28/1993 | EP0552328A1 Percussion drill. |
| 06/24/1993 | WO1993011910A1 Power tool |
| 05/12/1993 | EP0540841A1 Drilling device for making holes with undercuttings |
| 05/06/1993 | DE4236819A1 Machine tool power transmitting appts. from driver to rotating drive shaft - translates both rotary and to and fro movement to spindle from rotary moment of drive mechanism to drive rotating tool |
| 04/29/1993 | WO1993007995A1 Drilling hammer |
| 04/29/1993 | DE4135240A1 Bohrhammer Rotary Hammer |
| 04/21/1993 | CN1071114A Drilling device for producing drilled holes with undercut |
| 04/13/1993 | US5201373 Hand held power tool with safety coupling |
| 04/01/1993 | WO1993005929A1 Device fitted on hand power tools |
| 04/01/1993 | DE4132023A1 Einrichtung an handwerkzeugmaschinen Means at hand machine tools |
| 03/31/1993 | EP0444030B1 Drilling hammer |
| 03/09/1993 | US5191946 Wrap spring clutch for percussive apparatus |
| 03/02/1993 | CA1313979C Synchronized hammer coupling |
| 01/21/1993 | WO1993001027A1 Percussion drill |
| 01/14/1993 | DE4215288A1 Bohrhammer Rotary Hammer |
| 01/13/1993 | EP0521898A1 Adjustable pressure dual piston impulse clutch |
| 01/05/1993 | US5176593 Speed changing mechanism including planet gears and one-way clutch |
| 12/30/1992 | CN1019650B Device for hammering fastening elements into hard material |
| 12/23/1992 | EP0519121A2 Speed changing mechanism including planet gears and one-way clutch |
| 12/02/1992 | EP0515371A1 Hand-held machine tool. |
| 11/12/1992 | DE4215421A1 Portable electric drill operating in different ways - has spring locking ball engaging in different recesses in plate |
| 11/10/1992 | US5161624 Tool for driving fastening elements into hard receiving materials |
| 11/04/1992 | CN1065914A Wrap spring clutch for precussive apparatus |
| 11/03/1992 | US5159986 Power tool |
| 10/19/1992 | WO1992018784A1 Wrap spring clutch for percussive apparatus |
| 10/19/1992 | CA2105080A1 Wrap spring clutch for percussive apparatus |
| 09/15/1992 | US5147245 Hydraulic torque impulse generator |
| 08/18/1992 | US5139093 Wrap spring clutch for percussive apparatus |
| 07/15/1992 | EP0494379A1 Handtool with safety clutch |
| 07/14/1992 | CA1304963C Hand-held tool with switching means for variable operation |
| 06/30/1992 | US5125461 Power tool |
| 06/10/1992 | EP0489687A1 Drilling and chiseling tool |
| 06/04/1992 | DE4038502A1 Hand-operated electric hammer drill - has cup=shaped ratchet with central bore for drive spindle |
| 06/02/1992 | CA2056545A1 Drilling and chipping apparatus |
| 05/27/1992 | EP0486843A1 Hand tool with brake coupling |
| 05/27/1992 | EP0486842A1 Hand tool |
| 05/19/1992 | US5113951 Apparatus for driving a drilling or percussion tool |
| 05/12/1992 | US5111890 Hammer drill |
| 03/24/1992 | CA1297866C Arrangement for the axial bearing of a drilling machine |
| 03/18/1992 | EP0474651A1 Drill or percussion tool with coupling in the percussion drive. |
| 03/11/1992 | EP0473968A2 Hydraulic operated impact drilling device, especially for bolt drilling |
| 03/11/1992 | CN1015786B Device on powered handtools for transmitting torque |
| 03/03/1992 | US5092410 Adjustable pressure dual piston impulse clutch |
| 02/25/1992 | US5090226 Motor driven flaring device |
| 01/08/1992 | EP0465450A2 Hydraulic torque impulse generator |
| 01/02/1992 | EP0463416A1 Electrical hammerdrill |
| 01/02/1992 | DE4020242A1 Electric wall socket aperture drilling device - has diamond cutting crown around central drill bit and selective hammer drill operating mode |
| 12/31/1991 | US5076371 Tool for use in a hand power device |
| 11/05/1991 | USRE33733 Device for driving a drilling and/or impacting tool |
| 10/30/1991 | EP0454348A1 Power tool |
| 10/15/1991 | US5056607 Mode change mechanism for power tools |
| 10/02/1991 | EP0449766A1 Tool for beating down of fasteners in hard material |
| 10/02/1991 | DE4009762A1 Chisel hammer with guide cylinder - is rotatably locked in relation to housing, and has externally operated adjustment device for support ring |
| 10/02/1991 | CN1054929A Device for hammering fastening elements into hard material |
| 10/01/1991 | US5052497 Apparatus for driving a drilling or percussion tool |
| 09/30/1991 | WO1991014541A1 Adjustable pressure dual piston impulse clutch |
| 09/26/1991 | DE4008750A1 Fixing device-driving tool - incorporates rotary drill and bolt-setting mechanism |
| 09/25/1991 | EP0448304A2 Motor driven flaring device |
| 09/20/1991 | CA2038483A1 Tool for driving fastening elements into hard receiving materials |
| 09/04/1991 | EP0444030A1 Drilling hammer. |
| 08/22/1991 | WO1991012116A1 Hand-held machine tool |
| 07/24/1991 | EP0437716A1 Electrically driven handtool |
| 06/25/1991 | US5025869 Impact drill |
| 06/19/1991 | EP0432169A1 A device on manual machine tools for torque transmission. |
| 06/12/1991 | CN1012806B Hand controlling tools apparatus |
| 06/05/1991 | EP0429475A1 Hammer drill or concrete breaker. |
| 04/03/1991 | EP0419866A2 Drill hammer |
| 03/27/1991 | EP0318480B1 Device for switching off percussion tools |
| 03/12/1991 | US4998588 Hand tool with a shifting gear unit |
| 03/07/1991 | WO1991002883A1 Perforator |
| 12/27/1990 | EP0403789A1 Drill- or impacthammer |
| 12/20/1990 | DE3919427A1 Hand machine hammer drill - has inertia mechanism to block drive spindle while tool is being fitted |
| 12/13/1990 | WO1990014929A1 Drill or percussion tool with coupling in the percussion drive |
| 11/28/1990 | EP0399714A2 Improvements in or relating to power tools |
| 11/06/1990 | US4967888 Safety clutch for motor-operated hand tool |
| 07/31/1990 | US4944642 Bearing arrangement in rotary machines |
| 07/04/1990 | EP0375917A1 Drilling machine |
| 06/19/1990 | US4934465 Arrangement for the axial bearing of a drilling machine |
| 06/13/1990 | EP0373106A2 Gearbox for a hand tool |
| 04/12/1990 | DE3834290A1 Device for changing over a portable electric drilling machine from drilling operation to percussion drilling operation |
| 03/28/1990 | CN1040847A Device on powered handtools for transmitting torque |
| 03/22/1990 | DE3832202C1 Hand-held machine tool |
| 02/22/1990 | WO1990001400A1 Hammer drill or concrete breaker |
| 02/22/1990 | DE3828309A1 Hammer drill |
| 02/08/1990 | WO1990000957A1 A device on manual machine tools for torque transmission |
| 02/06/1990 | US4898250 Hand-held tool with switching means for variable operation |
| 01/23/1990 | US4895212 Rotary hammer |
| 01/03/1990 | EP0349482A2 Motor-driven hand tool |
| 12/14/1989 | WO1989011955A1 Drilling hammer |
| 12/14/1989 | DE3819125A1 Bohrhammer Rotary Hammer |
| 12/13/1989 | EP0345896A2 Device for driving a drilling and/or percussion tool |
| 11/15/1989 | EP0342172A1 Bearing arrangement in rotary machines |
| 10/03/1989 | US4871033 Motor-driven hand tool with braking torque device |
| 09/19/1989 | US4867250 Pneumatic impact imparting tool |
| 09/14/1989 | DE3807308A1 Radially acting safety friction clutch of a power tool |
| 09/06/1989 | EP0331619A2 Rotary hammer |