Fire extinguishing apparatus
US4458239A · kind A · utility
6Cited by
5References
3Claims
0Family size
Inventors
Key dates
| Filing date | Jul 15, 1981 |
| Grant date | Jul 3, 1984 |
| Priority date | — |
| Expiry date | Jul 15, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C37/40
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fire extinguishing apparatus and an actuating system. The actuating system includes a plurality of actuators connected in parallel and a source of electrical signal for said actuators. Each actuator is connected in parallel with a device whose resistance decreases with increasing current through the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.