Valve and a process for removing a closure member of the valve
US4699350A · kind A · utility
23Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Mar 19, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/5983
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve, for example for use as a pipeline stop valve or a blow-out preventer, comprises a body with a central passage and opposed aligned guideways extending outwards from the passage. A closure member is provided in each guideway, each of which guideways is closed by a bonnet housing moving means for the respective closure member. The moving means are adapted to move each closure member through the central passage and into the opposite guideway, the closure members sealing therein to enable the opposite bonnet and associated closure member to be removed for a servicing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.