Sealing device for a high-vacuum closure

Details Sealing device for a high-vacuum closure Sealing device for a high-vacuum closure

1980-11-24

1984-07-10

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

285DIG18, F16J 1508

Patent

active

044589050

ABSTRACT:
A sealing device for a high-vacuum closure, such as used in a high-vacuum valve, where the surfaces effecting the seal are formed of metal. In forming the seal, a sealing member extends between and into contact with a pair of laterally spaced sealing surfaces. The surfaces on the sealing member which contact the sealing surfaces are rounded and have a radius of curvature equal to half the dimension of the sealing member between the sealing surfaces when it first contacts the surfaces during the closing step. The sealing surfaces can be frustoconical or spherical. When the device is closed, sealing force presses the sealing member between the sealing surfaces so that a relative rolling action takes place. Only elastic deformation occurs when the seal is effected.

REFERENCES:
patent: 3146006 (1964-08-01), Schmohl
patent: 3262722 (1966-07-01), Gastineau et al.
patent: 3537733 (1970-11-01), Martin

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