Pneumatic detector integrated alarm and fault switch
US9153400B2 · kind B2 · utility
6Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Aug 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/34
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An integrated switch to indicate pressure changes in an environment includes a housing with a cavity between a first retainer portion and a second retainer portion, a first diaphragm held in the cavity of the housing to indicate fault conditions, and a second diaphragm held in the cavity of the housing to indicate alarm conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.