Fluid valve
US4050472A · kind A · utility
6Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 11, 1975 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Nov 11, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86493
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid valve particularly suited for controlling the flow of coolant in an automobile heater system and a vacuum responsive servo for actuating the valve. The valve, two embodiments of which are disclosed, has improved sealing means and the servo includes improved sealing of the diaphragm with respect to the servo actuating element and an improved two-piece servo housing. A novel connection between the servo and the valve is also provided, having reduced backlash and less tendency to bind.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.