Wide temperature range seal for demountable joints

Details Wide temperature range seal for demountable joints Wide temperature range seal for demountable joints

1990-11-08

1991-07-23

Will, Thomas B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277188A, 277235R, 277236, 285904, 285917, F16J 1506

Patent

active

050337564

ABSTRACT:
The present invention is directed to a seal for demountable joints operating over a wide temperature range down to liquid helium temperatures. The seal has anti-extrusion guards which prevent extrusion of the soft ductile sealant material, which may be indium or an alloy thereof.

REFERENCES:
patent: 857134 (1907-01-01), Wilcox
patent: 1782014 (1930-11-01), Rimmelspacher
patent: 1846401 (1932-02-01), Oven
patent: 2205010 (1940-06-01), Raybould
patent: 2249127 (1941-07-01), Goetze
patent: 2327837 (1943-05-01), Williams
patent: 3167324 (1965-01-01), Kratochvil
patent: 3951418 (1976-04-01), Dryer
patent: 4383694 (1983-05-01), Fontana
patent: 4418918 (1983-12-01), Nicoll
patent: 4549741 (1985-10-01), Usher et al.
Journal of Vacuum Science Technology (vol. 7, No. 3): "Indium Caulking Technique for Vacuum Seal", Judson F. Bouman, May-Jun. 1970, p. 462 (vol. 3).
Brochure: Flexible Graphite, The High Temperature Performer by: U.S. Graphite, Inc. 7 pages, date unknown.

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