Temperature-compensated pressure controller, operationally relia

Details Temperature-compensated pressure controller, operationally relia Temperature-compensated pressure controller, operationally relia

1986-04-21

1987-10-06

Nase, Jeffrey V.

Fire extinguishers

Alarms

73706, 73708, 73717, 116 70, 169 75, 200 814, 200 83D, 340605, 340626, A62C 2308, H01H 3532

Patent

active

046976434

ABSTRACT:
Extinguisher provided with a temperature compensated pressure controller, comprising a propelling agent and an extinguishing agent under gaseous form, wherein it comprises a sealed chamber filled with a mixture having a thermodynamic characteristic similar to that of the two agents in the extinguisher, a system for measuring the differential pressure exisiting between the inside of the sealed chamber and the chamber per se and a device actuated by the system for measuring the differential pressure and generating an alarm signal when the differential pressure exceeds a threshold value.

REFERENCES:
patent: 3576412 (1968-12-01), Julien-Davin
patent: 3735376 (1973-05-01), Kramer et al.
patent: 3757292 (1973-09-01), Sato et al.
patent: 3946175 (1976-03-01), Sitabkhan
patent: 4143545 (1979-03-01), Sitabkhan
patent: 4289207 (1981-09-01), Wernert
patent: 4297687 (1981-10-01), Fuzzel

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