Stationary cylinder torque wrench
US4819520A · kind A · utility
3Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Apr 23, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/005
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A stationary cylinder hydraulic torque wrench comprising a cylinder fixedly connected to a wrench housing, a track and roller assembly for controlling alignment of a piston rod during a stroke of a piston, and a roller, rotatably connected to the end of the piston rod for transferring power to a lever arm having a convex edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.