Pumps – Expansible chamber type – Mechanically actuated distributor
Patent
1984-04-23
1986-09-23
Husar, Cornelius J.
Pumps
Expansible chamber type
Mechanically actuated distributor
417519, 417532, 417900, F04B 1502, F04B 700
Patent
active
046132902
ABSTRACT:
A pumping system for various flowables utilizes a dual alternating piston pump in communication with a tank hopper having flowable material inlet and delivery lines and an internal oscillating elbow conduit equipped with a pressurized wear plate which is moved cyclically into and out of registration with the cylinders of the dual alternating piston pump. A vacuum pipe rising from the tank hopper having a floating check valve and a suction shut off valve communicates with a vacuum pump external to the tank hopper through a filter. The evacuated tank hopper is enabled to fill itself immediately with flowable material and maintain a full condition while the dual alternating piston pump is pumping material through the delivery line with high efficiency. When vacuum to the tank hopper is shut off, the dual piston pump can be reversed to pump through the suction line while drawing in material through the delivery line.
REFERENCES:
patent: 547538 (1895-10-01), Coffey
patent: 1940007 (1933-12-01), Moore
patent: 2071703 (1937-02-01), Nelson et al.
patent: 3749522 (1973-07-01), Kazama et al.
patent: 4057364 (1977-11-01), Bratschitsch
patent: 4198193 (1980-04-01), Westerlund et al.
patent: 4337017 (1982-06-01), Evenson
Cuomo Peter M.
Fishburne, Jr. B. P.
Husar Cornelius J.
Lefco Western, Inc.
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