Torque reaction device
US6244138A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1998 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Sep 1, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/0078
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A torque reaction device (16, 90, 110, 130, 150) is disclosed which can be used with a power wrench (14) to open and close a valve (10) in a valve assembly (12) which absorbs the shock of opening and closing the valve. The torque reaction device includes a torque reaction arm (18) which is mounted on the power wrench. A torque reaction frame (20, 94, 114, 132, 154) is provided which is mounted to the valve assembly in a manner dependant upon the configuration of the valve assembly. The torque reaction frame mounts a U-channel (22) which interacts with the torque reaction arm (18) to prevent uncontrolled movement of the power wrench relative to the valve while opening and closing the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.