Center-position biased slide valve
US4524951A · kind A · utility
14Cited by
24References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1981 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Jun 15, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86702
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A housing 10, 12 includes a slide chamber 14 in which a slide bar 30 reciprocates between three positions. A coil spring 60 is carried by the bar and extends into lower and upper recesses 50, 52 in the housing. When the bar is reciprocated from the intermediate position to either of the other positions, the ends of the recesses 54 compress the spring, thereby biasing the bar into the intermediate position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.