Nordson Corporation

Fruehauf Corporation

Robert L Gielow

Michael A Reighard

Donald L Urig

Peter G Lambert

Christopher Hart Chandler

Christopher M Solis

James C Paul

Apparatus and process for extracting powder from a stream of powder laden air drawn from a manual powder spray booth in a first embodiment, with a cyclone recovery system, typically containing two cyclone separators for separating the powder from the air. The cyclone separators have a breakaway design to facilitate cleaning. The resulting cyclone cleaned air is drawn through a prefilter section by a fan section having serially stacked fans. The prefilter section further separates powder from the cyclone cleaned air. The resulting prefilter cleaned air is next filtered in a final filter section and exhausted to the air surrounding the cyclone recovery system. The invention also relates to an improved cyclone separator which incorporates a perforated thimble between the downwardly and upwardly moving vortexes in the cyclone separator to reduce the pressure drop across the cyclone separator. In a second embodiment, a stream of powder laden air is drawn from an automatic powder spray booth with a cyclone recovery system typically incorporating horizontally disposed cyclone separators, each with a perforated thimble, a filter module with cartridge filters, a fan module, and a final filter.

Powder coating booth with improved cyclone separator

An edge for frontal engagement with air flow as occurs when vehicles are moving in an air environment. The edge is elongate and intended to wrap around an existing corner where two substantially planar surfaces intersect, one of the planar surfaces being a front surface and the other planar surface being a rearwardly receding flanking surface such as a top surface or a side surface of a vehicle. The edge rises abruptly from the front plane and moves forwardly and outwardly in a convex arc to a point of abrupt inflection outside of the flanking plane and adjacent the front plane as extended through the flanking plane. The discontinuity or inflection is a change from convexity to concavity formed by alternate concavity and convexity and progressing generally toward faired contact with the flank plane.

Means for reducing vehicle drag

Growing community of inventors

Farmington Hills, MI, United States of America

Robert L Gielow