Furnaces – Doors – Explosion relief doors
Patent
1992-08-18
1993-11-23
Favors, Edward G.
Furnaces
Doors
Explosion relief doors
49472, 110173R, 110176, 110181, 432242, 432250, F23M 700
Patent
active
052634256
ABSTRACT:
A door assembly for an air lock of a waste processing system comprising a vertical sliding door member having a perimeter entirely supported when the sliding door member is in a closed position and is sealed by a selectively inflatable gasket assembly located along the perimeter. The sliding door member is supported by inner and outer panels separated by a rectangular spacer gasket, wherein the inner and outer panels each contain a rectangular opening having a perimeter for receiving the inflatable gasket assembly. The inflatable gasket assembly includes a retainer frame and a rectangular inflatable seal element. The door assembly is opened and closed by including a pair of vertical tracks located between the inner and outer panels for receiving vertically extending ribs from the sliding door member. A longitudinal rack located on the sliding door member engages a pinion mounted on a shaft extending through an opening in the outer panel and a hydraulic motor is mounted on the outer panel for driving the pinion.
REFERENCES:
patent: 4228135 (1980-10-01), Wolff
patent: 4679738 (1987-07-01), Prisco et al.
patent: 4735368 (1988-04-01), Janko et al.
patent: 4774896 (1988-10-01), Michimae et al.
patent: 5022328 (1991-06-01), Robertson
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