Spool valve
US3985337A · kind A · utility
9Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1975 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Sep 25, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8671
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spool valve having a ported valve chamber and a valve spool mounted for reciprocation therein and carrying an elastomeric seal ring in sliding engagement with the chamber wall for controlling fluid flow through the valve port in the wall, the seal ring having a torus portion and a flexible web co-functioning with the spool seal ring mounting groove to provide desired sealing and valving action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.