Double seal gate valve structure

Details Double seal gate valve structure Double seal gate valve structure

1976-06-17

1978-01-24

Cline, William R.

Gas: heating and illuminating

Processes

Coal

251326, 251328, 251193, 137246, 137559, F16K 302, F16K 318, C10J 306

Patent

active

040701611

ABSTRACT:
A gate valve structure is shown embodying an elongate slide member movable within an elongate housing. The slide member carries a pair of annular seals spaced apart along the length of a valve body and has a bore therein extending through the valve body at a location between the seals. By linear movement of the slide member the bore and seals are each selectively registerable with aligned openings through the housing. This valve structure has operating and maintenance characteristics, which are particularly advantageous for use in the charging and/or discharging of fixed bed coal gasifiers.

REFERENCES:
patent: 1283929 (1918-11-01), Simmons
patent: 2499382 (1950-03-01), Hamer
patent: 2786644 (1957-03-01), Koppl
patent: 2986367 (1961-05-01), Le Rouax
patent: 3063080 (1962-11-01), Bergman et al.
patent: 3144238 (1964-08-01), Williams
patent: 3232494 (1966-02-01), Poarch
patent: 3478771 (1969-11-01), Johnson
patent: 3782411 (1974-01-01), Turner
patent: 3867110 (1975-02-01), Schora et al.
patent: 3933618 (1976-01-01), Patton
patent: 3976443 (1976-08-01), Paull
patent: 3999522 (1976-12-01), Jaulmes

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