Valve-in-valve body, vent port and method
US6269840A · kind A · utility
16Cited by
28References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1996 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Dec 10, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve in valve assembly. The assembly comprises a housing having an internal passage, a valve body in the housing and movably operable to control process fluid flow through the passage, and a chamber in the valve body. The chamber is open to the passage at a first chamber end. A valve core in the chamber controls service fluid flow the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.