Method of preparing replaceable liquid soap reservoir

Details Method of preparing replaceable liquid soap reservoir Method of preparing replaceable liquid soap reservoir

1994-12-14

1996-02-06

Kashnikow, Andres

Dispensing

Processes of dispensing

2223219, 222325, 222385, 2221812, 417545, 417547, 417550, G01F 1100

Patent

active

054890446

ABSTRACT:
A method of preparing a liquid reservoir disposable pump for insertion into a permanent dispenser housing is disclosed. The pump comprises two basic unitary, preferably all plastic, elements: a chamber forming body having an open outer end and an inner end in fluid communication with the liquid reservoir, and a piston formed to slidably fit into the chamber. The reservoir and pump are prepared for insertion into the permanent housing by first substantially filling the reservoir with liquid, and then evacuating air from the reservoir by applying a vacuum to the outer end of the chamber to provide vacuum pressure sufficient to draw air out of the chamber and reservoir.

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