Pneumatic detector switch having a single diaphragm for alarm and fault conditions
US9418527B2 · kind B2 · utility
0Cited by
10References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 24, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Mar 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/346
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A pneumatic pressure detector switch is disclosed that includes a retainer assembly adapted to communicate with a source of pressure, a deformable diaphragm supported within the retainer assembly and movable in response to changes in pressure communicated to the retainer assembly, a fault contact element supported by the retainer assembly adjacent a first side surface of the diaphragm, and an alarm contact element supported by the retainer assembly adjacent a second side surface of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.