Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for other than internal combustion engine – or...
Patent
1997-03-28
1999-07-13
Nicholson, Eric K.
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal for other than internal combustion engine, or...
277941, 118733, F16J 1508
Patent
active
059215593
ABSTRACT:
A sealing structure for an airtight chamber includes a first division member and a second division member being repeatedly joined and disjoined. The first and second chamber members are joined together to define the chamber between them and disjoined to allow access to the chamber. The structure also includes a sealing member pressed between the first and second division members to keep the chamber airtight against a pressure difference between the exterior and the interior of the chamber while the first and second division members are joined. The first and second division members are made of a material with hardness lower than that of the sealing member and are formed with a groove. The structure also includes seat members being embedded in the grooves and pressed against the sealing member while the first and second division members are joined. The seat member is made of a material harder than the division member and welded in said groove only along its contacting surfaces with the groove.
REFERENCES:
patent: 4039296 (1977-08-01), Levinstein
patent: 4723518 (1988-02-01), Kawasaki et al.
patent: 5660639 (1997-08-01), Wilski et al.
Falbe, Jurgen et al, Rompp Chemie Lexikon, 9th ed., (Stuttgart: Georg Thieme Verlag), p. 2479, 1990.
Binda Greg
Frontec Incorporated
Nicholson Eric K.
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