Fluid pressure operated indicating relay
US5072748A · kind A · utility
4Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1991 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Apr 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid pressure operated indicating relay including a casing defining an interior and a valve assembly movable within the interior. The valve assembly incorporates a mechanism to prevent "bounce back" of the valve assembly after the relay has been tripped as a result of a drop of fluid pressure at the relay inlet port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.