Pipe gripping tools
US4449430A · kind A · utility
3Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1981 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Apr 29, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/505
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pipe gripping tool includes a body, a fixed jaw secured to the body and having a bite face, a movable jaw povoted to the body in opposition to the fixed jaw and having a plurality of cooperating bite faces for gripping a pipe in cooperation with the bite face on the fixed jaw and a return spring anchored at one end to the movable jaw and at the other end to the body. The plurality of bite faces on the movable jaw are positioned at different distances from the bite face on the fixed jaw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.