Arrangement for minimizing leakage from heated chambers and meth

Details Arrangement for minimizing leakage from heated chambers and meth Arrangement for minimizing leakage from heated chambers and meth

1981-09-11

1984-01-10

Garris, Bradley

Distillation: processes, thermolytic

Miscellaneous

34242, 49485, 106 33, 106 75, 110173R, 202242, 202248, 202269, 266271, 432250, C09K 310, C10B 2516, E06B 716, F27D 118

Patent

active

044251912

ABSTRACT:
A heated chamber having at least one opening; closure means for closing said at least one opening, said closure means having at least a closed and open position; said closure means and said opening having surfaces disposed for coming into proximity of one another in said closed position, said surfaces forming a primary sealing means for said heated chamber in said closed position, there being a substance applied to at least one of said proximate surfaces, said substance having a property of expanding upon the application of heat thereby forming a secondary sealing means between said proximate surfaces in said closed position.

REFERENCES:
patent: 2956914 (1960-10-01), Bunezk
patent: 4024310 (1977-05-01), Wooler et al.
patent: 4061344 (1977-12-01), Bradley et al.
patent: 4296540 (1981-10-01), Potter
Vandersall; "Intumescent Coating Systems . . . "; J. Fire & Flammability; vol. 2; pp. 97, 137 & 138; Apr. 1971.

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