Valves and valve actuation – With means to increase head and seat contact pressure – Gate valve
Patent
1992-03-10
1993-12-14
Fox, John C.
Valves and valve actuation
With means to increase head and seat contact pressure
Gate valve
251169, F16K 318
Patent
active
052694917
ABSTRACT:
Presented is a vacuum valve having a metallic housing that may be mounted in a vacuum system in any attitude. The valve includes a "knife" edge seal formed on the interior of the metallic housing on one wall thereof, surrounding a port therein, and adapted to sealingly impinge against a metallic sealing pad mounted within the housing on a carriage that is translatable longitudinally of the housing by manipulation of a spindle that cooperates with a bellows sealing the housing. The spindle extends out to the housing and includes means for suitable manipulation of the spindle. Means are provided within the housing operatively interposed between the carriage and sealing pad to effect lateral translation of the sealing pad in relation to the carriage on which it is mounted to engage and disengage the "knife" edge seal upon appropriate rotation of the spindle. Means are also provided within the housing to prevent seizing of metallic parts that move relative to one another within the vacuum valve.
REFERENCES:
patent: 653600 (1900-07-01), Wiley
patent: 1074199 (1913-09-01), Poland
patent: 1707125 (1929-03-01), Loffler
patent: 2850260 (1958-09-01), Peryone et al.
patent: 3108780 (1963-10-01), Wishart
patent: 3216694 (1965-11-01), Veragone
patent: 3554486 (1971-01-01), Thebado
patent: 3557822 (1971-01-01), Chronister
patent: 3787023 (1974-01-01), Schufflebarger et al.
patent: 4238111 (1980-12-01), Norman
patent: 4294427 (1981-10-01), Cilny
patent: 4491145 (1985-01-01), Williams et al.
patent: 4560141 (1985-12-01), Bosch
patent: 4706934 (1987-11-01), Brown
patent: 4718637 (1988-01-01), Contin
patent: 4971101 (1990-11-01), Becker et al.
Fox John C.
Leavitt John J.
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