Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8955614 | Pneumatic power wrench with an exhaust air outlet unit | — | 2015-02-17 |
| 8371395 | Housing joint for a power tool | — | 2013-02-12 |
| 7958611 | Method for quality checking a screw joint tightening process performed by a torque impulse wrench | John Robert Christian Friberg, Mats C. Holmin, Torbjörn Rafael Sjöblom, Nils Karlberg | 2011-06-14 |
| 7938195 | Impact wrench with a lubricated impact mechanism | — | 2011-05-10 |
| 7467669 | Method for governing the operation of a pneumatic impulse wrench and a power screw joint tightening tool system | John Robert Christian Friberg, Torbjörn Rafael Sjöblom, Erland Karlberg | 2008-12-23 |
| 6868742 | Method and device for determining the torque applied to the fastener as a function of the retardation and the inertia moment | — | 2005-03-22 |
| 6527060 | Portable power tool with separate pistol-type handle | — | 2003-03-04 |
| 6341533 | Method for determining the installed torque in a screw joint at impulse tightening and a torque impulse tool for tightening a screw joint to a predetermined torque level | — | 2002-01-29 |
| 6134973 | Method for determining the installed torque in a screw joint at impulse tightening and a torque impulse tool for tightening a screw joint to a predetermined torque level | — | 2000-10-24 |
| 6135213 | Pneumatic power wrench with adjustable exhaust restriction | — | 2000-10-24 |
| 6110045 | Hydraulic torque impulse generator | — | 2000-08-29 |
| 5901794 | Pneumatic power wrench | Fred Rickard Jonsson | 1999-05-11 |
| 5893420 | Multi-core cable connector for power wrench | — | 1999-04-13 |
| 5836811 | Air tool suspension device | — | 1998-11-17 |
| 5775999 | Hydraulic torque impulse generator having a pressure responsive bypass flow valve | Gunnar C. Hansson, Sten Herman Olsson | 1998-07-07 |
| 5704434 | Hydraulic torque impulse mechanism | — | 1998-01-06 |
| 5645130 | Hydraulic torque impulse mechanism | — | 1997-07-08 |
| 5492185 | Impulse wrench | Ingemar J. F. Sjors | 1996-02-20 |
| 5429553 | Hydraulic torque impulse generator | — | 1995-07-04 |
| 5147245 | Hydraulic torque impulse generator | — | 1992-09-15 |
| 5092410 | Adjustable pressure dual piston impulse clutch | William K. Wallace | 1992-03-03 |
| 5082066 | Torque impulse delivering power tool | — | 1992-01-21 |
| 4884995 | Hydraulic torque impulse generator | — | 1989-12-05 |
| 4854916 | Hydraulic torque impulse generator with bypass mechanism | Sven P. J. Westerberg | 1989-08-08 |
| 4767379 | Hydraulic torque impulse generator | — | 1988-08-30 |