Inner seal and support rod assembly for high pressure blowout preventers
US4456215A · kind A · utility
21Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1982 |
| Grant date | Jun 26, 1984 |
| Priority date | — |
| Expiry date | May 7, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A new and improved inner seal and support rod assembly for a blowout preventer including an inner seal assembly for improved sealing and configured to promote ease of maintenance and removal thereof in cooperation with substantially horizontally disposed, vertically aligned support rods of the blowout preventer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.