Dispensing – With recorder – register – indicator – signal or exhibitor – Position or extent of motion indicator
Patent
1985-09-05
1987-07-21
Rolla, Joseph J.
Dispensing
With recorder, register, indicator, signal or exhibitor
Position or extent of motion indicator
222 47, 222130, 222173, 222309, 222334, 222372, 222390, 222391, B67D 522, G01F 1100
Patent
active
046812423
ABSTRACT:
A pump for delivering precisely metered discrete quantities of solvent containing suspended solids in rapid cycles. The pump ejects the solvent from a cylinder in amounts proportional to discrete longitudinal movement of a piston inside the cylinder and eliminates internal valves that may become clogged.
REFERENCES:
patent: 3390815 (1968-07-01), Kavan et al.
patent: 3687339 (1972-08-01), Dessureault
patent: 3931915 (1976-01-01), Downings et al.
patent: 3963151 (1976-06-01), North, Jr.
patent: 4428511 (1984-01-01), Howell
Bollinger David H.
Charles Wyle Engineering Corporation
Rolla Joseph J.
Rozsa Thomas I.
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