Rotary airlock having adjustable blades to maintain a seal

Details Rotary airlock having adjustable blades to maintain a seal Rotary airlock having adjustable blades to maintain a seal

1976-05-14

1978-02-28

Hoffman, Drayton E.

Dispensing

With discharge assistant

Movable or conveyer-type trap chamber

302 49, G01F 1110

Patent

active

040761509

ABSTRACT:
A rotary airlock for conveying material has a housing which includes a cylindrical wall and a pair of generally flat end walls which together define a cylindrical chamber. A plurality of vanes are secured to a shaft which extends axially through the housing. A plurality of blades are fixedly secured to each vane and are movable in all directions in the plane of the vane to enable the clearance between the blades and cylindrical wall and the end walls of the housing to be adjusted to maintain a seal between the blades and the housing and to minimize the leakage of air and material from the airlock.

REFERENCES:
patent: 2083354 (1937-06-01), Whittier
patent: 3201007 (1965-08-01), Transeau
patent: 3708890 (1973-01-01), Weisselberg
patent: 3830581 (1974-08-01), Furlong

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