Force motor
US4354662A · kind A · utility
16Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1980 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Apr 30, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86622
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to force motors that are used in single stage hydraulic valves that are responsive to electrical input signals. The inertia of the force motor is reduced by having only a small portion of the force motor move. By reducing the mass of the moving parts of the force motor the force motor may be used with an increased speed of response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.