Vacuum pump closure for canisters and vacuum pack containers

Details Vacuum pump closure for canisters and vacuum pack containers Vacuum pump closure for canisters and vacuum pack containers

1979-06-25

1980-08-26

Hall, George T.

Foods and beverages: apparatus

Subjecting food to an enclosed modified atmosphere

Vacuum-producing means

220231, 2065248, B65D 5716, A23B 000

Patent

active

042189675

ABSTRACT:
A closure device for canisters and a reclosure for vacuum pack containers and comprised of a removeable diaphragm that seals with the opened end of the container and a cover overlying the diaphragm to form a pump chamber therebetween, there being actuating means to axially reciprocate the diaphragm relative to the cover, and check valves in the diaphragm and cover for drawing a high vacuum upon the contents within the said container, and with means to release said vacuum.

REFERENCES:
patent: 1946872 (1934-02-01), Muhleisen
patent: 2669176 (1954-02-01), Lazerus
patent: 2890810 (1959-06-01), Rohling
patent: 4083468 (1978-04-01), Batchelor

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