| Patents for B25D 9 - Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously (2,753) |
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| 12/23/1986 | US4630687 Percussion device |
| 12/03/1986 | EP0203282A1 Control of a hydraulic percussive drilling device |
| 12/02/1986 | US4625812 Pneumatic impact hammer |
| 10/29/1986 | CN85203221U Self-exited all-hydrolic impactor |
| 10/22/1986 | EP0094403B1 Rock breaking apparatus |
| 10/08/1986 | CN85106202A Pneumatic pick with motive flexible axle air pipeline |
| 10/01/1986 | EP0196195A1 Hydraulic percussive machines |
| 09/02/1986 | US4608853 Percussion apparatus |
| 08/19/1986 | US4606257 Electropneumatic drive system for crust breaking devices and process for operating the same |
| 08/12/1986 | US4605073 Device in needle hammers |
| 07/22/1986 | US4601350 Electrically-operated multi-needle chisel tool |
| 07/08/1986 | US4598851 Fastener driving tool |
| 06/17/1986 | US4594759 Surface-chiseling machine |
| 06/11/1986 | EP0183874A1 Hydraulic percussion tool |
| 06/10/1986 | US4593768 Hydraulically operated impact device |
| 06/04/1986 | EP0183093A1 Hydraulic percussion device |
| 06/03/1986 | CA1205353A1 Impact apparatus with pressurized fluid control |
| 05/21/1986 | EP0181468A1 Percussion tool utilizing negative pressure |
| 05/06/1986 | US4586230 For attachment to a hand held air chisel |
| 04/15/1986 | US4582145 Pressure-medium driven percussion device |
| 03/18/1986 | US4576240 Hydraulic impact device |
| 03/18/1986 | CA1201946A1 Hydraulic down-the-hole rock drill |
| 02/25/1986 | CA1201038A1 Apparatus for driving an elongated piece into and/or out of the ground |
| 02/18/1986 | CA1200734A1 Isolation system between the hydraulic medium and the surrounding air for a percussion tool actuator |
| 01/15/1986 | EP0168382A1 Device for percussive and/or rotary drilling |
| 01/15/1986 | EP0168364A1 Hydraulic accumulator |
| 01/15/1986 | EP0096037B1 Hydraulic down-the-hole rock drill |
| 01/14/1986 | US4563938 Pressure fluid operated percussive tool |
| 01/07/1986 | US4562974 Rock breaking apparatus |
| 12/10/1985 | CA1197836A1 Pressure-medium driven percussion device |
| 11/13/1985 | EP0161227A1 Hydraulic percussive machine |
| 11/12/1985 | US4552227 Reciprocating linear fluid motor |
| 11/05/1985 | US4550785 Hydraulic drive for actuating a tool |
| 10/22/1985 | US4548279 In a demolition tool |
| 10/22/1985 | US4547928 Tool for cleaning and removing deposited material, particularly from motor vehicle brake drums |
| 10/08/1985 | US4545440 Attachment for pneumatic hammers for punching holes of varying size |
| 09/18/1985 | EP0154802A1 Percussion tool |
| 09/03/1985 | CA1192898A1 Attachment for a percussive rock drilling machine |
| 08/21/1985 | EP0152376A1 Percussion device |
| 07/31/1985 | EP0150170A1 Pneumatic hammer |
| 07/31/1985 | EP0149967A1 Hydraulically actuated percussion tool |
| 07/31/1985 | EP0149676A1 Rock drill |
| 07/02/1985 | US4526190 For a pneumatic reciprocating motor |
| 06/19/1985 | EP0145701A1 Percussion drill controls |
| 06/18/1985 | CA1188959A1 Apparatus for minimising the amount of fluid leaked from a component in a hydraulic power system when the component has failed |
| 06/12/1985 | EP0144005A1 Pneumatic chiseling tool |
| 06/04/1985 | CA1188200A1 Actuator for a hydraulic impact device |
| 05/29/1985 | EP0143086A2 Multi-use hand held equipment for driving tools |
| 05/14/1985 | CA1186904A1 Compressed-air pile-driver |
| 05/07/1985 | CA1186592A1 Hydraulic reciprocating device |
| 04/23/1985 | US4512417 For a downhole drill |
| 04/02/1985 | US4508017 Fluid-control system for a hydraulic percussion instrument |
| 03/26/1985 | CA1184449A2 Pneumatic motor for rock drills and the like |
| 03/19/1985 | US4505340 Hydropneumatic percussive tool |
| 03/13/1985 | EP0134182A1 Hydraulic percussion tool |
| 02/28/1985 | WO1985000762A1 Method and device for the vibratory operation of a working piston, particularly for working tools |
| 02/27/1985 | EP0133609A1 Pressure fluid operated impact motor |
| 02/05/1985 | US4497377 Pneumatic tool |
| 01/29/1985 | US4496007 Compressed-air pile-driver |
| 01/29/1985 | US4495791 Dent removing pneumatic puller |
| 01/22/1985 | US4494614 Hydraulically operated impact device |
| 01/22/1985 | CA1181322A1 Liquid pressure striking device |
| 01/17/1985 | WO1985000124A1 Manually-operated pneumatic vibration-protected impacting machine |
| 01/15/1985 | US4493376 Fastener driving tool |
| 12/12/1984 | EP0127885A2 Hydraulic impact mechanism |
| 12/05/1984 | EP0127191A2 Hydraulic impact mechanism |
| 12/04/1984 | CA1178861A1 Drill hammer with variable air consumption |
| 11/27/1984 | US4484638 Liquid inertia tool |
| 11/27/1984 | CA1178513A1 Hydraulically operated impact device |
| 11/22/1984 | WO1984004482A1 Rock drill |
| 11/20/1984 | US4483402 Paving breaker |
| 11/07/1984 | EP0124480A1 Electropneumatic drive system for a crust braking device, and method for its operation |
| 11/07/1984 | EP0094403A4 Rock breaking apparatus. |
| 10/31/1984 | EP0123502A2 Portable power tools |
| 10/30/1984 | US4479551 Actuator for a hydraulic impact device |
| 10/23/1984 | US4478248 Rotary valve |
| 10/02/1984 | US4474248 Hydraulic demolishing rock drill |
| 08/21/1984 | US4466851 Method and apparatus for scraping adherent material from a smooth work surface |
| 08/21/1984 | US4466493 Reciprocating linear fluid motor |
| 08/21/1984 | US4466167 Method of removing stuck gaskets and pneumatic impact tool |
| 07/17/1984 | US4460051 Percussion drill hammer |
| 07/04/1984 | EP0112810A2 A rock drilling apparatus and a method of optimizing percussion rock drilling |
| 05/29/1984 | US4450920 Hydraulic reciprocating machines |
| 05/22/1984 | CA1167740A1 Hydraulically operated impact device |
| 05/15/1984 | US4448262 Pneumatic hammer |
| 05/08/1984 | US4446930 Drill steel removal attachment for rock drilling machine |
| 05/08/1984 | US4446773 Compressed air distributor for a reciprocating concrete breaking type machine |
| 05/02/1984 | EP0107036A1 Device for cleaning and removing dust from brake drums on vehicles |
| 04/24/1984 | US4444274 Liquid pressure striking device |
| 04/18/1984 | EP0105854A2 Method of driving an element and an hydraulic impactor |
| 04/03/1984 | US4440237 Pavement breaker |
| 02/14/1984 | US4430926 Hydraulic rotary-percussive machines |
| 01/25/1984 | EP0099097A2 Device for producing a working power, in particular for rams, presses or the like |
| 12/06/1983 | US4418769 Hammer starting mechanism |
| 11/23/1983 | EP0094403A1 Rock breaking apparatus. |
| 11/22/1983 | US4416338 Control mechanism for a pneumatic tool |
| 11/08/1983 | US4413687 Hydraulically operated impact device |
| 11/01/1983 | CA1156105A1 Tool for drilling boreholes |
| 09/27/1983 | CA1154333A1 Impact tool with pressure regulating means |
| 08/10/1983 | EP0085279A1 Directional control valve to obtain in a hydraulic appliance the alternative motion of a piston operating to charge and fire a tool, specially suitable for hydraulic hammers |