Pumps – Diverse pumps – Priming and venting
Patent
1980-07-18
1983-11-22
Smith, Leonard E.
Pumps
Diverse pumps
Priming and venting
417214, 417319, 417429, 92 133, F04B 4106
Patent
active
044165889
ABSTRACT:
A combination airless paint pump and air compressor wherein a prime mover drives an eccentric cam wheel within an oil reservoir housing. A piston, movably received within a housing bore is engageable with a periphery of the cam wheel to load an hydraulic column open to the piston cylinder for oscillating a paint spray pump diaphragm. A second piston member, received in a bore open to the housing, is engageable with the periphery of the cam wheel spaced circumferentially of the paint pump piston. The second piston is operatively connected with an air pump diaphragm. Selector means are provided to disengage, selectively, either one of the pistons from contact with the cam wheel whereby the unit can operate in a paint only mode, an air only mode or a combination air and paint mode.
REFERENCES:
patent: Re29055 (1976-11-01), Wagner
patent: 2142329 (1939-01-01), Nika, Jr. et al.
patent: 2322181 (1943-06-01), Vincent
patent: 2413851 (1947-01-01), Taylor
patent: 2612839 (1952-10-01), Denny
patent: 2925780 (1960-02-01), Tear
patent: 3254845 (1966-06-01), Schlosser
patent: 3286933 (1966-11-01), Savage
patent: 3335671 (1967-08-01), Schoenecker
patent: 3430557 (1969-03-01), Wagner
patent: 3623661 (1971-11-01), Wagner
patent: 4022381 (1977-05-01), Karliner
patent: 4167896 (1979-09-01), Clements
Smith Leonard E.
Wagner Spray Tech Corporation
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