Auto-relieving pressure modulating valve
US6609538B2 · kind B2 · utility
6Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Oct 11, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86622
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An auto-relieving pressure modulating valve includes a spool, a solenoid that shifts the spool in an energized direction, and a spring arrangement. The spring arrangement functions to shift the spool from a relieving position to a neutral position, in the energized direction, without energizing the solenoid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.