Pressurizing apparatus for partially filled containers

Details Pressurizing apparatus for partially filled containers Pressurizing apparatus for partially filled containers

1983-05-12

1984-11-13

Norton, Donald F.

Bottles and jars

Closures

Having an inflatable member

215231, B65D 3912

Patent

active

044820720

ABSTRACT:
A closure for partially filled containers which has an interconnecting opening from outside of the container to the unfilled portion of the inside of the container and bladder which is inflatable within the container. A valve apparatus is located within the opening within the closure which, when actuated by an operator, allows pressurized air to enter the inflatable bladder. A simple hand operated pump apparatus can readily provide pressurized air to inflate the bladder. A simple method of depressurizing the expanded bladder is provided by simply depressing an extended portion of the valve apparatus releasing the pressurized air from within the bladder.

REFERENCES:
patent: 713708 (1902-11-01), Spire
patent: 4392578 (1983-07-01), Fipp et al.

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