Blowout preventer with removable packer
US5333832A · kind A · utility
7Cited by
1References
8Claims
0Family size
Inventors
Key dates
| Filing date | Oct 4, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Oct 4, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved ram-type blowout preventer having an improved resilient ram packer which includes an upper retainer plate and a lower retainer plate which each have a front face with a central recess therein, a back and sides, resilient end elements bonded between the plates at the sides and having facing surfaces extending from front to back and a resilient insert shaped to be positioned between said plates and between said end elements with sides mating with the shape of the facing surfaces of the end elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.