Proportional solenoid
US4428558A · kind A · utility
16Cited by
11References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 13, 1981 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Feb 13, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86871
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A proportional solenoid comprises a rotary magnet for causing a rotational displacement within an angle of 180 degrees in proportion to a current supplied to a coil, a torsion bar for damping the rotation of the rotary magnet and a rotary valve driven by the rotation of the rotary magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.