Bi-directional rotary valve
US10184568B2 · kind B2 · utility
1Cited by
15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2014 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Sep 5, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/2263
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bi-directional cryogenic rotary valve having a housing defining a fluid passageway, a control member rotatably disposed within the fluid passageway, and a seal assembly positioned along an inner surface of the housing to provide a bubble tight seal between the housing and the control member. The rotary valve adapted to operate at or near cryogenic temperatures (i.e., at −160° C.) while maintaining an effective seal in both the forward and reverse directions. The rotary valve being capable of retrofitting against wear and operational stress sustained from repeated use and operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.