Thermally-sensitive coupling device

Details Thermally-sensitive coupling device Thermally-sensitive coupling device

1989-10-23

1990-03-27

Rivell, John

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 79, 13761404, 285 1, F16K 1740

Patent

active

049111949

ABSTRACT:
An improved coupling device (e.g., 134) has a first section (e.g., 135), a second section (e.g., 136), and a sleeve member (e.g., 138) mounted on one of the coupling sections and arranged to selectively engage the other coupling section. The sleeve member is provided with a weakened portion (e.g., 156). The weakened portion is formed of a suitable material and is so configured and arranged as to permit the two coupling sections to be physically separated from one another through thermally-induced flexural deformation of the weakened portion, without rotation of the sleeve member relative to either section, when the temperature of the weakened portion is greater than about 200.degree. F. but less than about 300.degree. F., and preferably about 266.degree. F.

REFERENCES:
patent: 2707965 (1955-05-01), Allen
patent: 3245423 (1966-04-01), Hansen et al.
patent: 3532101 (1970-10-01), Snyder
patent: 3690336 (1972-09-01), Drum
patent: 3704002 (1972-11-01), Skarzynski
patent: 3712583 (1973-01-01), Martindale et al.
patent: 4280523 (1981-07-01), Norton
patent: 4290440 (1981-09-01), Sturgis
patent: 4638975 (1987-01-01), Iuchi et al.
patent: 4825893 (1989-05-01), Gailey

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