Coupling with fusible actuator member

Details Coupling with fusible actuator member Coupling with fusible actuator member

1988-03-16

1988-12-20

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

137 74, F16L 3728

Patent

active

047921153

ABSTRACT:
A coupling includes plug and socket assemblies which are interconnectable to connect conduits in fluid communication. A heat fusible actuator member is connected with a valve member disposed in the socket assembly. The actuator member extends axially outwardly from the valve member and has an outer end portion which is engageable with the plug assembly to move the valve member from a closed condition to an open condition as the plug and socket assemblies are interconnected. The actuator member is fusible upon exposure to excessive heat to release the valve member for movement from the open condition to the closed condition under the influence of a biasing spring. As the valve member moves from the open condition to the closed condition, the size of the actuator member is reduced as it is compressed into a unitary body under the influence of the force applied against the valve member by the biasing spring. In one embodiment of the invention, when the actuator member is exposed to excessive heat, it is axially compressed. In another embodiment of the invention, when the actuator member is exposed to excessive heat, it is radially compressed. The actuator member could be mounted in the plug assembly if desired.

REFERENCES:
patent: 3245423 (1966-04-01), Hansen et al.
patent: 3532101 (1970-10-01), Snyder, Jr.
patent: 4280523 (1981-07-01), Norton
patent: 4290440 (1981-09-01), Sturgis

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