Coating apparatus – Program – cyclic – or time control – Having timer
Patent
1981-11-27
1983-05-24
Lacey, David L.
Coating apparatus
Program, cyclic, or time control
Having timer
118312, 118603, 427192, 55273, 55287, 55294, 55302, 55385R, 55DIG39, B05B 128, B01D 4604
Patent
active
043845460
ABSTRACT:
A device is described for filtering zinc powder from an airstream which is exhausted from a galvanizing process. The device comprises an enclosed chamber to which the airstream is circulated for removal of zinc powder. The chamber has a horizontally disposed bottom surface in which there is a plurality of circular openings which are equally spaced about a vertical center axis and which lead to vertically disposed bag-type filters. An arm is coupled to a vertical drive shaft which is rotatable about the center axis. The arm is designed to move a circular cover from opening-to-opening to individually seal the openings from the chamber, so that the filters can be cleaned of zinc powder. The cover is freely mounted on the distal end of the arm such that the cover is supported on the bottom surface of the chamber as it moves in an arcuate pathway between the filter openings.
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Lacey David L.
Midland-Ross Corporation
Switzer H. Duane
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