Sprinkler system and method of operating the same
US3958643A · kind A · utility
18Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Dec 11, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C35/64
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A sprinkler system having a pressurized sprinkler conduit which is separated from a water supply by a normally closed valve, and a fire alarm system having a circuit which is connected with this valve and opens the same in response to the detection of a fire by the circuit, is operated by detecting the absence of electrical energization of the fire alarm circuit, and thereupon operating the sprinkler system as a function of pressure losses in the sprinkler conduit rather than as a result of the operation of the fire alarm system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.