Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1995-12-08
1998-03-24
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
B08B 704
Patent
active
057298629
ABSTRACT:
An air director for balancing air flow during a perpendicular change in air flow direction, comprising a frame defining an outer perimeter and having an inner annular opening therein, a plurality of air-directing vanes positioned on the frame between the perimeter and the annular opening thereof in spaced-apart relation around the perimeter thereof for directing air therethrough from the perimeter and perpendicularly through the annular opening, the vanes positioned on the frame with opposed, major, air-directing surfaces defining a extended line having a predetermined angular offset relative to the radii of the annular opening for swirling the air.
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patent: 4198726 (1980-04-01), Powell, Jr.
patent: 4360432 (1982-11-01), Kieronski
patent: 4572748 (1986-02-01), House
patent: 5345649 (1994-09-01), Whitlow
Ringler Walter A.
Timms Rayford W.
Luwa Bahnson, Inc.
Moore Chris K.
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