Gasket material

Details Gasket material Gasket material

1980-03-24

1983-02-01

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 920, F16J 1522

Patent

active

043711804

ABSTRACT:
A gasket material combines a braided organic fiber sleeve for conformability with a vitreous fiber sleeve for reinforcement thereof. The gasket material is impregnated with polytetrafluoroethylene as a sealant. In another embodiment a sleeve is braided of yarn containing both inorganic and organic fibers, the different fibers being spun or twisted together. The reinforcement provided by the vitreous fiber makes it possible to use the gasket material to retain fluid at higher pressures than is possible with organic fiber alone. Gasket arrangements are disclosed which provide against leakage at the cut ends of the gasket material.
Preferred organic fibers are polytetrafluoroethylene and aramid. Preferred vitreous fibers are electrical, structural and chemical grades glass fiber.

REFERENCES:
patent: 2157867 (1939-05-01), Robertson et al.
patent: 3206229 (1965-09-01), Kramer
patent: 3646846 (1972-03-01), Houghton et al.
patent: 3791658 (1974-02-01), Zumeta
patent: 4298562 (1981-11-01), Latty

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