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| Patents for B25D 15 - Portable percussive tools using centrifugal or rotary impact elements (325) |
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| 09/01/1982 | EP0058677A1 Impact device. | | 08/31/1982 | US4346768 Impact device with sinusoidal rotary-to-reciprocative converter | | 07/13/1982 | CA1127432A1 Rotary impact tool for applying a torque force | | 02/18/1982 | WO1982000430A1 Impact device | | 02/02/1982 | US4313505 Rotary impact clutch | | 10/06/1981 | US4293044 Manually-actuated rotary-impact tool | | 09/08/1981 | US4287956 Impact wrench mechanism and pivot clutch | | 02/11/1981 | EP0023624A2 Mass-compensated tamping or striking system | | 01/06/1981 | US4243109 Bi-directional rotary impact tool for applying a torque force | | 01/06/1981 | US4243108 Pneumatic inpact wrench having rotatable and axially translatable components | | 01/06/1981 | CA1092865A1 Pawl spring assembly for a rotary impact mechanism | | 11/11/1980 | US4232749 Convertible rotary/percussion drill | | 03/04/1980 | US4191264 Impact wrench | | 01/22/1980 | US4184552 Manually actuated impact tool | | 01/01/1980 | CA1069112A Striking bar | | 06/05/1979 | US4157120 Rotary impact mechanism having a spring accelerated inertia member | | 08/15/1978 | US4106572 Pawl spring assembly for a rotary impact mechanism | | 07/04/1978 | US4098354 Impact driver for electric drill | | 02/14/1978 | US4073348 Impact drilling tool | | 11/15/1977 | US4058176 Tool and method for drilling a hole with an increased cross-sectional area | | 01/11/1977 | US4002212 Rotary impact mechanism | | 05/11/1976 | US3955628 Hammer drill | | 04/27/1976 | US3952814 Impact wrench | | 04/13/1976 | US3949816 Utility impact wrench | | 01/13/1976 | US3931744 Hammer-drill |
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