Air operated low pressure spraying system

Details Air operated low pressure spraying system Air operated low pressure spraying system

1988-04-14

1989-07-25

Smith, Leonard E.

Pumps

One fluid pumped by contact or entrainment with another

Jet pump with motive fluid generating pump

417183, 417190, 239354, 137893, F04B 2300

Patent

active

048508098

ABSTRACT:
Apparatus for converting high pressure, low volume air to low pressure, high volume filtered air in order to successfully atomize fluids, such as paint, of various viscosities. The invention makes it possible to utilize safe, economical compressor air to atomize fluids by a portable enclosure including a variable jet venturi induction pump which separates the pump from the area of application and other potentially contaminating elements. Ambient air is introduced into the portable enclosure after regulation and filtration. A low pressure field is established in the induction pump by increasing the velocity of the compressor air in a venturi section of the pump but is free of contaminates generated, for example, by overspray in the vicinity of the area of application.

REFERENCES:
patent: 1922920 (1933-08-01), Aherne
patent: 2767727 (1956-10-01), Acomb
patent: 2931580 (1960-04-01), Johnson
patent: 3282227 (1966-11-01), Nielsen
patent: 3633828 (1972-01-01), Larson
patent: 3906996 (1975-09-01), DePass et al.
patent: 4462429 (1984-07-01), Coursen
patent: 4681372 (1987-07-01), McClure

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