Fluid flow sensor with flexible vane
US4931776A · kind A · utility
7Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1988 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | May 19, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow sensor for regulating the air flow rate to a cooling system can be formed as a housing for channeling the flow through a retangular cavity and a one piece vane of bent metal strip which deflects and closes an electrical contact at a predetermined air flow rate and opens when the air flow rate falls below a preset threshold level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.