Sensor alarm and support
US4284981A · kind A · utility
7Cited by
16References
8Claims
0Family size
Inventor
Key dates
| Filing date | May 19, 1980 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | May 19, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/113
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A sensor alarm has a sensor for detecting heat, smoke, noxious gases, and the like and an alarm for warning of an alarm condition coupled to the sensor. The sensor alarm is attached to a support plate. An angled arm is formed at the upper edge of the plate to provide an inverted channel-shaped member fittable over a door top and having stiffly resilient pads for forcibly cocking the door top open, when the door is closed and latched, to provide a path for gaseous passage so that room occupants are provided with an early warning of an alarm condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.