Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent
1987-12-28
1989-05-23
Nilson, Robert G.
Fluid handling
Self-proportioning or correlating systems
Self-proportioning flow systems
417377, 417403, G05D 1103
Patent
active
048320714
ABSTRACT:
This invention relates to a pumping device that is adaptable for commercial and residential use that incorporates a series of pistons and valves that automatically and proportionally injects such fluids as fertilizers, oils, soaps and food syrups into various other liquid mediums.
REFERENCES:
patent: 3937241 (1976-02-01), Cloup
patent: 4394870 (1983-07-01), MacPhee
Leber Corporation
Nilson Robert G.
Rhead Robert J.
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