Expressor

Dispensing – Collapsible wall-type container – With wall-collapsing means

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Details

222105, 222152, 604140, 604141, 604146, B65D 3528

Patent

active

055471080

ABSTRACT:
An expressor for varying the amount of fluid in a variable-volume container connected to at least one conduit includes a housing defining an enclosed chamber which can accommodate the container. The housing has at least one opening through which a conduit can extend. A pressure regulating mechanism is coupled to the housing to vary the pressure of fluid in the chamber and thereby vary the volume of the container.

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