Non-pulsing apparatus

Details Non-pulsing apparatus Non-pulsing apparatus

1975-06-06

1977-06-07

Freeh, William L.

Pumps

Expansible chamber type

Plural pumping chambers

92 133, F04B 2104

Patent

active

040280187

ABSTRACT:
Variable stroke pumping apparatus suitable for pumping chemicals in a pulseless manner irrespective of the stroke. The apparatus comprises a plurality of pumps connected in flow paths extending between a fluid inlet and outlet and a central housing containing a cam and cam follower devices mounted on a carrier which is pivotable to alter the stroke of the pumps while maintaining substantially constant aggregate pumping of the pumps. Pump reciprocating members for each pump, e.g. rams extend outwardly of the housing and are reciprocated by the cam follower devices.

REFERENCES:
patent: 1070706 (1913-08-01), Luitwieler
patent: 1723874 (1929-08-01), Lunge
patent: 2010377 (1935-08-01), Sassen
patent: 2101829 (1937-12-01), Benedek
patent: 2322181 (1943-06-01), Vincent
patent: 2676608 (1954-04-01), Svenson
patent: 2882831 (1959-04-01), Dannevig
patent: 3046950 (1962-07-01), Smith
patent: 3238889 (1966-03-01), Huber et al.
patent: 3554671 (1971-01-01), Schlinke

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