Captive volume device as a safe life monitor

Details Captive volume device as a safe life monitor Captive volume device as a safe life monitor

1985-06-27

1989-04-18

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Fluid flow

116DIG8, 116206, G01L 1912

Patent

active

048216712

ABSTRACT:
A captive volume device containing a small amount of solid propellant and a safe life indicator such as a colorimeter material or a differential pressure sensor. As the propellant deteriorates, it expends a gas which changes the color of the colorimeter material or causes the differential pressure sensor to alter its position, indicating that the propellant material is useless.

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