Induced nuclear reactions: processes – systems – and elements – Seal arrangements – Between pressure vessel cover and vessel or portion thereof
Patent
1984-02-01
1986-04-22
Jordan, Charles T.
Induced nuclear reactions: processes, systems, and elements
Seal arrangements
Between pressure vessel cover and vessel or portion thereof
220240, 220327, 220378, G21C 1306, B65D 5300
Patent
active
045841632
ABSTRACT:
A hydrostatic seal for sealing an annular gap between two flat substantially horizontal coplanar surfaces, and particularly a gap in a nuclear reactor cavity which comprises a generally flat annular plate of a width sufficient to span the gap between the two surfaces, compressible annular sealing rings or gaskets disposed on the bottom surface of the flat annular plate for sealingly engaging the two flat surfaces when a downward force is exerted on the plate, and a plurality of fastening arrangements, distributed along the center line of the plate, for releasably fastening the plate in a position to span the gap and exert a downward force on the plate. Each of the fastening arrangements includes a pair of elongated members of a size to fit into the gap, with the members being mounted on the bottom surface of the plate so that at least a portion of each member is radially moveable in a direction toward a respective one of the vertical side surfaces defining the gap to engage same, and an actuator, which extends through a bore in the plate to its upper surface, for radially moving the members.
REFERENCES:
patent: 2800231 (1957-07-01), Hicks
patent: 2910209 (1959-10-01), Nelson
patent: 3633784 (1972-01-01), Taft
patent: 3812008 (1974-05-01), Fryer
patent: 4070221 (1978-01-01), Anthony
patent: 4170517 (1979-10-01), Meuschke et al.
Abeles Daniel C.
Jordan Charles T.
Klein Richard
Westinghouse Electric Corp.
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