Liquid dispensing pump

Details Liquid dispensing pump Liquid dispensing pump

F - Mech Eng,Light,Heat,Weapons

04

B

222/78

F04B 9/14 (2006.01) B67D 7/02 (2010.01) B05B 11/00 (2006.01) F04B 19/00 (2006.01)

Patent

CA 1224766

ABSTRACT OF THE DISCLOSURE A liquid dispensing pump is capable of being locked in one embodiment in a fully raised position of the plunger, in another embodiment in a fully depressed position of the plunger and in a further embodiment in a fully raised and/or fully depressed position of the plunger relative to the pump body. Each pump has a vent chamber which is closed in the locked position to avoid leakage of product from the container, and which is opened by a depending skirt on the plunger as it moves into juxtaposition to an enlarged diameter section in the vent chamber.

447784

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