Cavity sealing arrangement and method

Details Cavity sealing arrangement and method Cavity sealing arrangement and method

1990-04-23

1991-08-20

Will, Thomas B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 1, 156 79, 29460, 52303, 264 466, 264 467, 411508, F16J 900, B32B 518, B23P 1904, B29C 6700

Patent

active

050408038

ABSTRACT:
A vehicle body pillar has a cavity therein through which air flow creating undesirable noise and in which moisture and fluids such as water are not to be collected. An expandable sealant plug is inserted therein and retained in place. The sealant material forming the plug is later expandable under controlled conditions. It is preferably expandable under temperatures of about 275.degree. F. to 400.degree. F. over a period of time. Preferably during the electro-coated paint baking and curing operation, the sealant is exposed to appropriate temperatures for sufficient time to expand the sealant about 800% and cure it, sealing the cavity so as to prevent the flow of air through it. The expanded sealant also effectively blocks the intrusion of fluids such as water, minimizing corrosion within the pillar.

REFERENCES:
patent: 3233502 (1966-02-01), Fernberg
patent: 3400182 (1968-09-01), Kolt
patent: 3956549 (1976-05-01), Stoebert
patent: 4116893 (1978-09-01), Flanagan
patent: 4534088 (1985-08-01), Ricke
patent: 4618467 (1986-10-01), Burger et al.
patent: 4751249 (1988-06-01), Wycech
patent: 4898630 (1990-04-01), Kitoh et al.
patent: 4978266 (1990-12-01), Becker et al.
patent: 4978562 (1990-12-01), Wycech
patent: 4981310 (1991-01-01), Belisaire

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