| Patents for B25D 17 - Details of, or accessories for, portable power-driven percussive tools (6,804) |
|---|
| 09/24/1991 | CA1289552C Body construction for a drilling machine |
| 09/20/1991 | CA2038483A1 Tool for driving fastening elements into hard receiving materials |
| 09/18/1991 | EP0446726A1 Silencer device |
| 09/17/1991 | US5048618 Hammer machine |
| 09/11/1991 | EP0445636A1 Electrically operated hammer |
| 09/05/1991 | WO1991012933A1 Improvements relating to tools for removing tiles and the like from flat surfaces |
| 09/03/1991 | US5044254 Reciprocating air motor |
| 08/27/1991 | US5042592 Power tool |
| 08/24/1991 | WO1991012934A1 An arrangement for an axial bearing in a drilling machine |
| 08/20/1991 | US5040618 Pneumatic drill |
| 08/14/1991 | DE4004020A1 Percussion tool for assembling workpieces - has hammer blow exerted by piston actuated by pressure medium |
| 08/13/1991 | US5039170 Resonant beam suspension pads |
| 08/13/1991 | US5038480 Vibration damping device |
| 08/08/1991 | DE4003252A1 Hand tool having drive means with lubricant - comprising gears which accelerate froth formation and lubricant controlling froth build-up |
| 08/07/1991 | EP0440399A1 Improvements in or relating to pneumatic tools |
| 07/31/1991 | EP0357648B1 Torque-transmitting device for hand-held power tools |
| 07/28/1991 | CA2034940A1 Pneumatic tools |
| 07/25/1991 | WO1991010542A1 Pneumatic hammer |
| 07/25/1991 | WO1991010541A1 Die chuck for multiple-cornered ends of tool spindles |
| 07/23/1991 | US5033552 Multi-function electric tool |
| 07/18/1991 | DE4000861A1 Hand-held electric power tool e.g. percussion drill - has vibration decoupling of handgrip from motor by using rubber mounts between inner motor casing and outer tool casing |
| 07/16/1991 | US5031273 Vibration-free handle |
| 07/09/1991 | US5030043 Driving-in device for fixing an anchor in a hole |
| 07/09/1991 | US5029427 Ground rod driver |
| 07/09/1991 | CA1285834C Hand-held device with tool sensing means |
| 07/02/1991 | US5028092 Impact kerfing rock cutter and method |
| 07/02/1991 | US5028057 Tool shaft for a tool of the percussive and rotative type |
| 07/02/1991 | US5027910 Vibration-isolated rotary tool |
| 06/29/1991 | WO1991009709A1 Hydraulically powered repetitive impact hammer |
| 06/26/1991 | EP0434295A2 Dust extraction for drill |
| 06/26/1991 | EP0433876A1 Tool for percussive drilling and tool retainer for percussive drilling tools |
| 06/26/1991 | CN2079557U Damping handle |
| 06/25/1991 | US5025971 Annular cushioning buffer for fastener-driving tools |
| 06/25/1991 | US5025870 Hand-held tool with displaceable spring loaded handle |
| 06/19/1991 | EP0432169A1 A device on manual machine tools for torque transmission. |
| 06/12/1991 | CN1012806B Hand controlling tools apparatus |
| 06/05/1991 | EP0430024A1 Automatic greasing device for the bit of a hydraulic percussive tool |
| 06/05/1991 | EP0429475A1 Hammer drill or concrete breaker. |
| 06/05/1991 | EP0429444A1 A drill for rock and concrete |
| 06/04/1991 | US5020610 Removable filter fluid flow shutoff apparatus |
| 06/04/1991 | US5020607 Lug-removing pneumatic impact-gun air blast-deflector |
| 05/28/1991 | US5018792 Impact ripper apparatus with linear reciprocating ram |
| 05/22/1991 | EP0427758A1 Cemented carbide tip |
| 05/21/1991 | US5016892 Drill tool holder |
| 05/15/1991 | EP0427647A1 Pneumatic percussive apparatus with exchangeable worktool |
| 05/15/1991 | EP0426918A1 Automatic setting tool for masonry anchors |
| 05/08/1991 | EP0426632A2 Impact motor |
| 05/08/1991 | EP0425802A1 Drilling device with percussive and rotative tool |
| 05/07/1991 | US5013194 Chuck assembly for tool bits |
| 05/03/1991 | WO1991006744A1 Linear impact ripper apparatus |
| 05/03/1991 | CA2072648A1 Linear inpact ripper apparatus |
| 04/24/1991 | EP0423121A1 An apparatus with two end positions generating a reciprocating motion. |
| 04/23/1991 | US5009440 Tool chuck for tool bits |
| 04/18/1991 | DE3933813A1 Tool for driving and fixing expansion shell anchors |
| 04/17/1991 | EP0422377A1 Mounting unit with expanding anchor and mounting tool |
| 04/10/1991 | EP0421121A2 Electrically driven hammer |
| 04/10/1991 | EP0421067A1 Mounting unit with expanding anchor and mounting tool |
| 04/03/1991 | EP0420258A1 Crust breaker device for aluminium electrolysis cells |
| 04/03/1991 | EP0419866A2 Drill hammer |
| 04/03/1991 | CN1050350A Mounting device with expansible anchor and mounting tool |
| 03/30/1991 | WO1991005136A1 Demolition hammer |
| 03/28/1991 | DE3931078A1 Mounting with expanding anchor bolt - uses tool with end teeth bearing against shoulder inside bolt shank |
| 03/28/1991 | CA2025499A1 Crust breaker device for aluminium electrolysis cells |
| 03/27/1991 | EP0318480B1 Device for switching off percussion tools |
| 03/26/1991 | US5002136 Damped hammer drill |
| 03/26/1991 | US5002134 Rotary impacting apparatus |
| 03/19/1991 | US5000631 Working tool holder for a drilling or chiseling device |
| 03/19/1991 | CA1281613C Control system for a multiple shank impact ripper |
| 03/14/1991 | DE3930250A1 Adaptor and core-bit and centre-hole bit - are attached to hand-operated electric drill spindle |
| 03/13/1991 | EP0416991A1 Assembly ring |
| 03/13/1991 | EP0416182A1 Driving mechanism for anchor |
| 03/13/1991 | CN1011995B Hard alloy cutter bit |
| 03/05/1991 | US4997050 Scabbler bits |
| 02/19/1991 | US4993504 Device for efficient energy transfer and damping of impact drilling machines |
| 02/19/1991 | US4993501 Hydraulic hammer in particular for use in dusty and/or corrosive environments |
| 02/13/1991 | EP0412203A1 Cushioning device for impact tool |
| 02/05/1991 | CA1279865C Percussive tool with high pressure fluid jet |
| 01/24/1991 | WO1991000952A1 Striking device |
| 01/23/1991 | CN1011323B Tow piece downhole drill chuck |
| 01/22/1991 | US4986371 Safety deflector for air hammer and concrete breaker |
| 01/22/1991 | US4986370 Pneumatic hammer lift |
| 01/17/1991 | DE3922552A1 Electrically-driven hand tool - incorporates vibration-damping components between spindle and motor |
| 01/15/1991 | US4984850 Linear impact ripper apparatus |
| 01/15/1991 | US4984639 Demolition hammer |
| 01/15/1991 | US4984346 Axle wedge removal tool assembly |
| 01/01/1991 | US4981737 Tool wrap |
| 12/13/1990 | DE3918595A1 Clip for connecting drive to road drill tool-bit - has W=shaped spring clip with retaining arms located in circumferential groove |
| 12/04/1990 | US4974685 Freeze plug installation tool |
| 11/28/1990 | EP0399164A1 Driving device for bolts anchored by impact with open out sleeve |
| 11/28/1990 | CN2066488U Cooling device of hydraulic oil for hydraulic drilling machine |
| 11/27/1990 | US4972733 Shock absorbing grip |
| 11/20/1990 | CA1276513C Pneumatic impact tool |
| 11/13/1990 | CA1276083C Boom operated demolition apparatus and method of breaking composite material |
| 11/08/1990 | DE3914512A1 Hammering device for impact anchor - comprises drill inside sliding sleeve whose upper end is in contact with impact disc |
| 11/07/1990 | EP0395858A1 Fitting device with an anchor bolt and a fitting tool |
| 10/30/1990 | CA1275601C Percussion device |
| 10/25/1990 | DE3913426A1 Maschinenhammer Steam hammer |
| 10/25/1990 | DE3912644A1 Tool for boring holes - can be used with hammer drill but does not rotate with drill spindle |
| 10/18/1990 | WO1990012193A1 Coupling for drilling machine with dust extractor |
| 10/18/1990 | WO1990011871A1 Impact kerfing rock cutter and method |