Control apparatus for controlling gas flow in a molecular region

Details Control apparatus for controlling gas flow in a molecular region Control apparatus for controlling gas flow in a molecular region

1996-01-29

1999-02-23

Rivell, John

Valves and valve actuation

Pivoted valves

Gate

138 46, F16K 120

Patent

active

058735623

ABSTRACT:
A control apparatus for controlling gas flow in a molecular region including a housing, having a through-channel, and a control plate displaceable in its plane between an open position, in which the plate is located sidewise of the through-channel, and a closed position, in which the control plate crosses the through-channel, the control plate having a circumferential edge at least a portion of which is received in a groove circumscribing the through-channel, with the received portion having a profile which is offset backward or projects out with respect to the cross-sectional profile of the through-channel, and with the received portion having a diminished cross-sectional profile in comparison with the remaining edge portion.

REFERENCES:
patent: 3045706 (1962-07-01), Dillon
patent: 3190305 (1965-06-01), Schulze
patent: 4373546 (1983-02-01), Krakovsky
patent: 4512547 (1985-04-01), Balch

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