Manually controlled replacement solenoid for hydraulic valves
US7131633B2 · kind B2 · utility
1Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2004 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Aug 30, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Solenoid controlled hydraulic valves in sealed hydraulic circuits are provided with backup actuation without compromise of the hydraulic circuit by provision of an auxiliary, quick fitting solenoid coil case which incorporates manual switches and which may be attached directly to a battery for energization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.