Dispensing – Plural sources – compartment – containers and/or spaced jacket – With discharge assistant for each source
Patent
1980-07-24
1985-03-19
Rolla, Joseph J.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With discharge assistant for each source
222334, 417390, F04B 2306, F04B 1302, F04B 1700
Patent
active
045054053
ABSTRACT:
A system for pumping liquid materials with reciprocating pumps driven by hydraulically operated motors, wherein the pressurized hydraulic oil which is used to drive the hydraulic motors is supplied via reciprocating proportioners. The reciprocating proportioners are driven by a reciprocating air motor operated under predetermined air pressure. The system operation is characterized in that, under blocked output pressure conditions, the air motor will inherently stall and thereby limit the pressure of the hydraulic oil acting to drive the hydraulic motors, which therefore limits the pumping pressure applied to the reciprocating pumps, and limits the output pressure of the pumped liquid materials.
REFERENCES:
patent: 2946488 (1960-07-01), Kraft
patent: 3610783 (1971-10-01), Croucher
patent: 4312463 (1982-01-01), Daby
patent: 4317647 (1982-03-01), Hauser
Kelly Lawrence S.
Nii Donald S.
Schaffran Dean L.
Graco Inc.
Handren Frederick R.
Rolla Joseph J.
Sjoquist Paul L.
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