Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-06-05
1997-05-20
Cummings, Scott
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277171, 277236, 285336, F16J 1508
Patent
active
056305923
ABSTRACT:
A ring-shaped metal gasket with the cross-section thereof being substantially rectangular shaped, with the ratio (t/w) of the thickness t of the ring portion to the width w thereof being in the range of 0.5 to 4, having a Vickers hardness in the range of 50 to 120; a vacuum flange for a metal gasket, including a sealing groove for receiving a metal gasket at the surface of the flange, the width of a cross section of the groove gradually decreasing in the direction of the depth thereof, an outer side wall section of the sealing groove being substantially perpendicular to the flange surface, and an inner side wall section of the sealing groove being inclined with respect to the flange surface, with a difference in level being provided so that the flange surface positioned to the inside of the sealing groove is lower than the flange surface positioned to the outside of the sealing groove, and a vacuum seal structure including the above gasket and flange are disclosed.
REFERENCES:
patent: 3078110 (1963-02-01), Starr
patent: 3208758 (1965-09-01), Carlson et al.
patent: 3618989 (1971-11-01), Ito
patent: 3794361 (1974-02-01), Westberg
patent: 4303251 (1981-12-01), Harra et al.
patent: 4406467 (1983-09-01), Burger et al.
Murakami Yoshio
Obara Kenjiro
Saito Mitsuyosi
Beres John L.
Cummings Scott
Japan Atomic Energy Research Institute
Japan Vac's Metal Co., Ltd.
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