Transfer valve system
US6823669B2 · kind B2 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/329
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic transfer valve system has a main valve selectively placing one of a primary and secondary hydraulic system in communication with a hydraulic load. A pilot valve provides a toggling action between the primary and secondary systems with respect to pressure changes in such systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.