Induced nuclear reactions: processes – systems – and elements – Seal arrangements – Between pressure vessel cover and vessel or portion thereof
Patent
1986-01-21
1987-12-29
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Seal arrangements
Between pressure vessel cover and vessel or portion thereof
220378, 277157, 277180, 277189, G21C 1300
Patent
active
047160055
ABSTRACT:
A pressure tight seal is formed between the confronting planar sealing surfaces on the flanges of a nuclear reactor pressure vessel and its hemispherical head, by a toroidal, crushable tubular seal member which is locked into a flat annular spacer member by a resilient annular member, such as a circular coil spring seated in a V-shaped recess in the inner surface of the flat annular member. The thickness of the flat annular member and the resiliency of the circular coil spring control the deformation of the tubular seal member as the sealing surfaces are drawn toward each other by flange bolts. The flat annular member is provided with axial bores which register with the flange bolts to provide positive positioning of the tubular seal member without the necessity of providing grooves in the confronting planar sealing surfaces.
REFERENCES:
patent: 2872229 (1959-02-01), Waser
patent: 3276619 (1966-10-01), Scholz
patent: 3561793 (1971-02-01), Rode
patent: 3669303 (1972-06-01), Launay
patent: 4069100 (1978-01-01), Cooper
patent: 4114898 (1978-09-01), Bainard et al.
patent: 4155571 (1979-05-01), Gastineau et al.
patent: 4168853 (1979-09-01), Ahlstone
Ezekoye L. Ike
Rusnica Edward J.
Sepp, Jr. Henry A.
Abeles Daniel C.
Klein Richard L.
Kyle Deborah L.
Westinghouse Electric Corp.
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