Small bore gate valve
US6923423B2 · kind B2 · utility
5Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gate valve comprises a valve body, a stem bore which extends through the valve body, a stem which is disposed in the stem bore and which includes a first stem portion that is sealed to the stem bore, a second, smaller diameter stem portion that is sealed to the stem bore, and a gate pocket that is located between the first and second stem portions, and gate which is disposed within the gate pocket between the first and second seats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.