Containment apparatus for manual pipe tongs
US5333925A · kind A · utility
3Cited by
6References
10Claims
0Family size
Inventor
Key dates
| Filing date | Feb 1, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Feb 1, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/161
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a method and apparatus for containing and restraining the fragmentation of the jaw portion of a set of mechanical pipe tongs, under stress load conditions. The apparatus comprising a flexible belts or the like surrounding the jaws of the tongs like a girdle and attached to an energy absorber located at either side of the tongs' body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.