Valves and valve actuation – Lost motion between actuator and valve – Overload release
Patent
1986-09-17
1988-02-02
Walton, George L.
Valves and valve actuation
Lost motion between actuator and valve
Overload release
92181P, 92193, 92247, 1376253, 13762538, 13762539, 251205, 251210, 251282, 251325, 277102, 277125, F16K 3144, F16J 106
Patent
active
047225076
ABSTRACT:
A sealing ring device is provided for a fluid valve having a piston (2) reciprocating within a cylinder (1), wherein the piston (2) includes a valve cone (2c) adapted to contact a valve seat (11). In order to seal the inner space of the cylinder (1) located behind the piston (2) from an inlet/outlet passageway (A), a resilient sealing ring (5) is disposed in an annular groove (4) opening into the cylinder (1) around the rear end (2a) of the piston (2). A press ring (7), which extends above the rear end (2a) of the piston (2), contains the sealing ring (5) in the annular groove (4). A spring element (8) rests on the press ring (7). A piston rod (3) is guided in slidable manner through the piston (2). A stop (9) is attached to the rod (3) above the rear end (2a) and opposite the top side of the spring element (8). Downward movement of the rod (3) past the end position of piston (2) causes the stop (9) to compress the spring element (8), and the resulting force is transferred by the press ring (7) to the sealing ring (5) to expand the sealing ring (5) against the piston (2) and the cylinder (1).
REFERENCES:
patent: 1489608 (1924-04-01), Miller
patent: 1517593 (1924-12-01), Slate
patent: 1802897 (1931-04-01), Holden et al.
patent: 2468511 (1949-04-01), Pilch
patent: 2736625 (1956-02-01), Naab
patent: 3010695 (1961-11-01), Banks
patent: 3150569 (1964-09-01), Attermeyer
patent: 3259358 (1966-07-01), Tripoli
patent: 3312150 (1967-04-01), Strader
patent: 3382772 (1968-05-01), Kampert et al.
patent: 3821968 (1974-07-01), Barb
patent: 3987705 (1976-10-01), Strassheimer
patent: 4375821 (1983-03-01), Nanao
Lindackers Rudolf
Weydt Willy V. D.
Masoneilan International Inc.
Walton George L.
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