Seal ring

Details Seal ring Seal ring

1975-12-05

1978-01-17

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277206R, 277208, 277229, F16J 1546

Patent

active

040688526

ABSTRACT:
Seal ring made of an elastomeric material intended to operate at a temperature at least equal to 150.degree. C and to be in contact on its opposite sides with two mediums one of which at least is a medium emitting nuclear radiations and to be able to slide with a very slight friction coefficient in contact with a body which rotates and/or moves in a linear direction, comprising a body with an outer casing made of an elastomer which is resistant to heat and to nuclear radiations and has a low friction coefficient and with an inner casing made of a heat resisting elastomer, the outer and inner casings being closely welded to each other, the body being filled with a low-pressure gas and the inner casing being impermeable to the gas for filling the body. Application to seal rings for vessels in a radioactive medium.

REFERENCES:
patent: 2147771 (1939-02-01), Hathaway
patent: 2299734 (1942-10-01), Betts
patent: 2776154 (1957-01-01), Leistensnider
patent: 2822192 (1958-02-01), Beatty
patent: 2893060 (1959-07-01), Wills
patent: 3815926 (1974-06-01), Vore

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