| Patents for B25B 21 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose (7,850) |
|---|
| 11/25/1980 | CA1090215A1 Two-speed offset nut runner |
| 11/25/1980 | CA1090169A1 Hammer tool |
| 11/18/1980 | US4233865 Hydraulic wrench |
| 11/11/1980 | US4232750 Impact wrench with a rotary tool drive |
| 11/11/1980 | CA1089260A1 Low torque automatic screwdriver |
| 10/15/1980 | EP0017031A1 Screwing tool for band-held screws |
| 10/07/1980 | CA1086994A1 Combination drilling and wrenching tool |
| 09/30/1980 | US4224843 Tensioning device for simultaneously tensioning a plurality of bolts |
| 09/23/1980 | CA1086109A1 Hydraulically operated valve wrench |
| 09/23/1980 | CA1086108A1 Device for tightening a screw joint |
| 09/23/1980 | CA1086107A1 Device for tightening a screw joint |
| 09/23/1980 | CA1086106A1 Swivel head reaction bar nut runner |
| 09/17/1980 | EP0015588A1 Screw tools for adaptation to rotating machines |
| 09/16/1980 | US4222590 Equally tensioned coupling apparatus |
| 09/16/1980 | US4222294 Fastener tool socket retaining assembly |
| 08/26/1980 | US4218795 Drill bit with fastener-driving collar assembly |
| 08/26/1980 | US4218794 Hole-drilling and fastener-driving combination tool |
| 08/26/1980 | CA1084313A1 Power wrench |
| 08/19/1980 | US4217964 Forward and reverse rotary tool |
| 08/05/1980 | US4215594 Torque responsive speed shift mechanism for power tool |
| 07/22/1980 | CA1082011A1 Torque responsive speed shift mechanism for power tool |
| 07/15/1980 | US4212370 Sound absorber for an intermittently discharged gaseous working medium |
| 06/24/1980 | US4209182 Bit retainer for screwdriver |
| 05/27/1980 | CA1078230A1 Tool for rotating nuts, bolts and like fasteners |
| 05/20/1980 | CA1077753A2 Tool for rotating nuts, bolts and like fasteners |
| 05/20/1980 | CA1077752A1 Impact wrench with joint control |
| 05/06/1980 | US4201099 Hydraulic wrench |
| 04/29/1980 | US4200011 High power wrenching tool |
| 04/15/1980 | US4197886 Fastener driving tool and fastener holding nosepiece |
| 04/15/1980 | CA1075676A1 Power tongs |
| 03/04/1980 | US4191282 Device for tightening a screw joint |
| 03/04/1980 | US4191264 Impact wrench |
| 03/04/1980 | US4191227 Attachment for a power tool |
| 02/19/1980 | CA1071907A1 Driving-in appliance for screws or the like, joined together in a strip |
| 02/12/1980 | US4187746 Power wrench having ratchet means at both surfaces of socket thereof |
| 02/12/1980 | US4187744 Apparatus for rotating track chain bushing |
| 01/29/1980 | CA1070577A1 Pulse motor nutrunner |
| 01/22/1980 | US4184552 Manually actuated impact tool |
| 01/15/1980 | US4183265 Controlled torque air motor |
| 01/15/1980 | US4183260 Tool for rotating nuts, bolts and like fasteners |
| 12/25/1979 | US4179955 Power wrench |
| 12/18/1979 | US4178817 Powered pipe wrench |
| 11/27/1979 | US4175453 Device for tensioning several screw bolts |
| 11/27/1979 | US4175408 Apparatus for absorbing oil pressure in an impact type tool |
| 11/27/1979 | CA1066967A1 Rotary impact tool |
| 10/23/1979 | US4171651 Power driven wrench assembly |
| 10/23/1979 | CA1064741A1 Tool for locking and unlocking nuclear fuel element retainer nut |
| 09/11/1979 | CA1062051A1 Attachment for a rotary-hammer power tool |
| 08/22/1979 | EP0003714A1 Device for screwing-on fixation means |
| 08/21/1979 | US4165203 Pressurized medium powered device |
| 08/14/1979 | CA1060238A1 Drive mechanism for power ratchet wrench |
| 07/24/1979 | US4161996 Exhaust muffler |
| 07/17/1979 | US4161242 Power-driven drill and screwdriver |
| 06/26/1979 | US4159050 Combination power tool |
| 06/26/1979 | US4158970 Override arrangement and actuating knob for a shifting mechanism in portable tools |
| 06/05/1979 | US4157120 Rotary impact mechanism having a spring accelerated inertia member |
| 05/22/1979 | US4155279 Hydraulically operated valve wrench |
| 05/22/1979 | US4155278 Swivel head reaction bar nut runner |
| 05/15/1979 | US4154308 Low torque automatic screwdriver |
| 05/15/1979 | CA1054524A1 Air pulse noise damper for a pneumatic tool |
| 05/15/1979 | CA1054466A1 Impact air wrench having a two position pressure regulator |
| 05/08/1979 | US4152972 Torque applicator |
| 04/03/1979 | US4147219 Two-speed offset nutrunner |
| 03/27/1979 | US4146071 Power driver for fasteners |
| 02/20/1979 | US4140446 Rotary pneumatic tool with vibration absorbing means |
| 02/20/1979 | CA1049119A1 Multi-stage fastener tightening system |
| 02/07/1979 | EP0000626A1 Pull-type fastener-setting tool |
| 01/23/1979 | CA1046805A1 Low pressure shutoff valve for fluid operated tool |
| 01/09/1979 | US4133229 Impacting apparatus |
| 01/02/1979 | US4132136 Power wrench for turning threaded connection members |
| 12/12/1978 | US4128932 Method for turning a track bushing |
| 11/28/1978 | CA1043136A1 Combination tool |
| 11/07/1978 | CA1041807A1 Portable power operated pipe wrench |
| 10/24/1978 | US4121670 Impact wrench |
| 10/24/1978 | CA1040801A1 Driving tool barrel assembly |
| 10/17/1978 | US4120604 Portable pneumatic nut running tool having air shut-off controls |
| 10/10/1978 | CA1039985A1 Controlled torque air motor |
| 10/03/1978 | US4117735 Power wrench |
| 09/26/1978 | US4116093 Drive mechanism for power ratchet wrench |
| 09/26/1978 | CA1039131A1 Safety inlet air valve control arrangement for air powered hand held tool |
| 09/19/1978 | CA1038664A1 Air shut-off tool |
| 09/12/1978 | CA1038208A1 Motor-driven screwing and transporting tool for reactor pressure vessel head retaining fastenings |
| 09/05/1978 | CA1037796A1 Torque responsive motor shutoff for power tool |
| 08/22/1978 | US4107800 Combination drilling and wrenching tool |
| 08/15/1978 | US4106750 Safety valve for pneumatic tools |
| 08/15/1978 | US4106572 Pawl spring assembly for a rotary impact mechanism |
| 08/15/1978 | US4106371 Clamping tool |
| 08/15/1978 | CA1036397A1 Power driven screw driver with a screw holding nosepiece |
| 08/08/1978 | US4104934 Fixture for threading-on and simultaneously turning the nuts of several screw bolts |
| 07/04/1978 | US4098354 Impact driver for electric drill |
| 07/04/1978 | US4098351 Hammer tool |
| 06/27/1978 | US4097184 Pressure operated valve |
| 05/30/1978 | US4091890 Very high torque ratchet wrench |
| 05/23/1978 | US4090688 Low pressure shutoff valve for fluid operated tool |
| 05/09/1978 | US4088197 Power tool |
| 05/02/1978 | US4086830 Hydraulic wrench |
| 04/18/1978 | US4084487 Pulse motor in a nut runner |
| 04/18/1978 | US4084460 Hand held nut running and crimping power tool |
| 04/11/1978 | US4083270 Air motor having angular displacement control means |
| 03/21/1978 | US4079641 Hydraulic wrench |