Electrically operated by-pass water valve
US5255891A · kind A · utility
16Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Apr 29, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A servomotor actuated engine coolant valve with a plastic body and a thin resilient butterfly plate valve member formed of plastic material internally with a shaft hub drum having the motor shaft received therethrough for torque transmission to the butterfly plate. The butterfly plate is configured to have sufficient resiliency to absorb servomotor overtravel in the valve closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.