Method for inspecting a sealing property of a plastic container

Details Method for inspecting a sealing property of a plastic container Method for inspecting a sealing property of a plastic container

1990-09-25

1991-07-23

Williams, Hezron E.

Measuring and testing

Testing sealed receptacle

73 492, 73 493, G01M 336

Patent

active

050332872

ABSTRACT:
A method for inspecting a sealing property of a plastic container having contents. The container has a lid which is deflectable under a negative pressure developed in the container. The contents are charged in to the container so that a negative pressure is developed under a normal temperature or room temperature. The deflection of the lid is measured so as to detect the sealing property of the container.

REFERENCES:
patent: 2040726 (1936-05-01), Ball
patent: 3295676 (1966-12-01), Ochs
patent: 3371781 (1968-03-01), Armbruster et al.
patent: 3985018 (1976-10-01), Fox
patent: 4522015 (1985-06-01), Hildebolt
patent: 4735508 (1988-04-01), Bellio
patent: 4880129 (1989-11-01), McHenry et al.
patent: 4955226 (1990-09-01), Beaty et al.

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