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US 5,393,345 AGranted
Respray of overspray of any atomizable liquid with jet venturi induction pump
OwnerWilliam C. Smithinventor
Life of this patent
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Abstract
This invention reduces the air pollution associated with spraying of paints, coatings, solvents or pesticides against a surface. Spraying invariable causes bounceback of sprayed solids as well as overspray consisting of bounceback and an aerosol of solids, solvent, and air and is an important source of air pollution. This invention is a resprayer consisting of a jet venturi induction pump located near the front of a spray gun which captures the overspray and a respray nozzle which redeposits the captured material on the work surface.
Claims14
An apparatus for spraying atomizable liquid onto a surface comprising:
- an air compressor,
- a spray gun having a nozzle and a container for said liquid,
- means for providing said spray gun with air from said air compressor, and
- means for capturing overspray associated with spraying said liquids onto a surface and respraying the overspray onto the surface at a pressure of no more than 10 psig, wherein the means for capturing overspray comprises;
- a jet venturi induction pump,
- a respray nozzle having a respray orifice connected to the jet venturi induction pump and located adjacent the spray gun nozzle, said respray being emitted from said respray orifice at a pressure of not more than 10 psig,
- means for providing the jet venturi induction pump with air from said compressor, and
- means for attaching said jet venturi induction pump to said spray gun.
5 more elements
Dependencies are inferred from the claim text.