Controlled liquid dispensing apparatus

Details Controlled liquid dispensing apparatus Controlled liquid dispensing apparatus

1993-04-16

1995-07-18

Shaver, Kevin P.

Dispensing

Resilient wall

Wall deflecting means

222333, 4174132, B65D 3700

Patent

active

054333512

ABSTRACT:
A liquid feeding and dispensing apparatus having a disposable whole liquid container unit that can be immersed in a sterilizing tank for cleaning. The liquid container unit has an elastic liquid container, a pump, and valves integrated therein that is separate from a holder unit for driving a pump. The liquid container unit has an expansible liquid container filled with a liquid, a liquid feeder connected with an outlet from the liquid container at one end, and a pump chamber having one end connected with the other end of the liquid feeder. The pump chamber has a flexible wall plate, and a feeding tube connects with an outlet end of the pump chamber. A pump holder unit has a pump drive body detachably holding the pump chamber for deviating or flexing the flexible wall plate to change the volume of the pump chamber. A pinch valve has a groove for inserting and receiving the feeding tube to pinch the feeding tube closed when not feeding the liquid. In an alternate embodiment the pump chamber is sealed by a projection on the inside of the flexible wall plate.

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