Hand-operable double-action metering and/or atomizing pump

Details Hand-operable double-action metering and/or atomizing pump Hand-operable double-action metering and/or atomizing pump

1990-11-30

1992-05-05

Bertsch, Richard A.

Pumps

Expansible chamber type

Fluid serially moved to opposite side of pumping member

417552, 222385, 222321, F04B 2102

Patent

active

051102714

ABSTRACT:
In a hand-operable double-action metering and/or atomizing pump, comprising a pump body having a pump cylinder and a pump plunger mounted therein, the pump cylinder being provided with a downwardly directed tubular extension forming a transition to a suction tube, on the pump plunger an extension is formed in the axial direction of the pump and extends into the tubular extension. Arranged on the tubular extension is an encircling sealing lip which points in the direction towards the pump cylinder and bears sealingly on the pump plunger extension.

REFERENCES:
patent: 4643338 (1987-02-01), Iizuka

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