Cryogenic thermal switch

Details Cryogenic thermal switch Cryogenic thermal switch

1986-06-13

1988-09-13

Tanner, Harry B.

Refrigeration

Movable thermal means varying heat transmission

165 32, 165185, F28F 2700

Patent

active

047700041

ABSTRACT:
Cryogenic thermal switch (10) comprises base (30) which is clamped onto the flange of cold cylinder (24). Heat transfer ring (14) is positioned spaced between thermal clamp surfaces (36, 48) by means of support isolators (90,92,94). Springs (64) urge the clamp surfaces to clamp on ring (14) while metal tubes (70, 72, 74, 76) hold the clamp surfaces in a spaced position while at warm temperature. When the structure is cold, the metal tubes shrink and the springs (64) cause the surfaces to clamp on ring (14) for thermal conduction.

REFERENCES:
patent: 564979 (1896-08-01), Dixon et al.
patent: 3112878 (1963-12-01), Snelling
patent: 3260055 (1966-07-01), Webb
patent: 3430455 (1969-03-01), Stuart et al.
patent: 3531752 (1970-09-01), Gourley
patent: 3609992 (1971-10-01), Cacheux
patent: 3807188 (1974-04-01), Lagodmos
patent: 4261174 (1981-04-01), Wagstaffe
patent: 4281708 (1981-08-01), Wing et al.
patent: 4388965 (1983-06-01), Cunningham et al.
patent: 4399661 (1983-08-01), Durenec et al.
patent: 4575629 (1986-03-01), Schnell et al.

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