Jet barrel and hose fitting insert for a jet pump

Details Jet barrel and hose fitting insert for a jet pump Jet barrel and hose fitting insert for a jet pump

1994-07-11

1995-12-26

Freay, Charles

Pumps

One fluid pumped by contact or entrainment with another

Jet

417 54, 417181, 417195, F04F 500

Patent

active

054782090

ABSTRACT:
A jet barrel and hose fitting insert are provided for a jet pump that supplies coating powder to a spray gun. The insert reduces the likelihood of impact fusion in the barrel and fitting. The insert comprises a cylindrical portion of small outside diameter in alignment with a cylindrical portion of large outside diameter with a longitudinal bore through both portions. The insert is retained in a hose fitting which fastens into the jet pump. The upstream end of the insert is positioned to receive the jet flow and to close a supplementary air chamber in the pump.

REFERENCES:
patent: 4135861 (1979-01-01), Brown et al.
patent: 4807814 (1989-02-01), Douche et al.
patent: 4846617 (1989-07-01), Ehrhardt
Catalog sheet showing Gema brand injector assembly sold from 1972 to 1977.
Catalog sheet showing Gema brand injector assembly sold from 1977 to 1984.
Catalog sheet showing Ransburg Gema brand injector assembly sold from 1984 to 1986.
Catalog sheet showing Gema-Volstatic type 11/12 pump assembly models 106528 and 107160 sold from 1984 to 1986.
Catalog sheet showing Gema-Volstatic type IV30 pump assembly model 101733 sold from 1986 to 1988.
Catalog sheet showing Gema-Volstatic type PI-1 pump assembly model 110316 sold from 1988 to 1991.
Catalog sheet showing Gema-Volstatic type PI-3 pump assembly model 114635 sold from 1991 to date.

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