Flow control valve apparatus
US4442997A · kind A · utility
6Cited by
5References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 23, 1981 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Nov 23, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary solenoid motor adapted for use in a flow control valve apparatus. The solenoid motor having a shaft on which a valve member is connected. A torsion bar is connected between the shaft and a housing for generating a torsional force opposite to an electro-magnetic force. The shaft and the housing has a pair of portions for fixing the torsion bar. Each of the portions forms a regular polygonal cross-sectional shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.