Vacuum packing apparatus

Details Vacuum packing apparatus Vacuum packing apparatus

1978-11-02

1980-09-16

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Combined

73744, 99472, G01L 716

Patent

active

042222761

ABSTRACT:
A vacuum packing apparatus utilizes a container lid for attachment to a container having food therein. The lid is provided with a check valve having a hose fitting which provides a source of vacuum to the container. The lid carries an indicating apparatus whose housing is attached to the lid and gaseously communcating to the container associated therewith. A coil spring is mounted in the housing and biases a piston rod outwardly from the housing. The rod of the piston carries indicia suggesting the vacuum level within the container. One embodiment provides a novel valve apparatus suitable for allowing the container to achieve atmospheric pressure upon simple manual manipulation thereof.

REFERENCES:
patent: 820987 (1906-05-01), Perotti
patent: 1347194 (1920-07-01), Washington
patent: 1572190 (1926-02-01), Don
patent: 2087963 (1937-07-01), Baxter
patent: 2155397 (1939-04-01), Brandon
patent: 2669176 (1954-02-01), Lazerus

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