Depressurizing pump assemblies and closures for beverage...

Details Depressurizing pump assemblies and closures for beverage... Depressurizing pump assemblies and closures for beverage...

B - Operations, Transporting

65

D

B65D 47/34 (2006.01) B65B 31/04 (2006.01) B65D 39/00 (2006.01) F04B 33/00 (2006.01) F04B 45/04 (2006.01)

Patent

CA 2391771

An assembly for depressurizing an opened beverage bottle including a bottle closure having a valve to permit depressurization of the bottle by a removable pump assembly. The pump assembly includes a stretchable diaphragm having roller being moveable on tracks within a housing. A pivotal actuator stretches the diaphragm to cause expansion of diaphragm chamber and effect depressurization of the bottle through the closure valve.

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