Classifying – separating – and assorting solids – Adhesion – Coated surface or mass
Patent
1975-11-20
1977-05-24
Knowles, Allen N.
Classifying, separating, and assorting solids
Adhesion
Coated surface or mass
209 79, 53 53, 73 52, B07C 110
Patent
active
040249565
ABSTRACT:
A method and apparatus particularly adapted for use in continuously testing for leaks in a plurality of generally fluid-tight and flexible packages which are conveyed along a predetermined path. This particular apparatus embodies first means for selectively and continuously conveying a plurality of the packages along the predetermined path, second means operatively connected to the first means for compressing the generally fluid-tight packages as they are continuously conveyed along the predetermined path to the extent that those packages which do not have leaks expand by at least a predetermined amount and whereas those packages which have leaks will not expand by the predetermined amount, and third means being operatively connected to the second means for at least monitoring the existence of the predetermined expanded packages as the packages are continuously advanced to thereby enable defective packages to be eliminated. The method comprises the steps of continuously advancing a plurality of generally fluid-tight and flexible packages along a predetermined path, compressing the packages as they are successively advanced along the predetermined path such that those packages which do not have leaks expand by at least a predetermined amount and whereas those packages which have leaks will not expand by the predetermined amount, and monitoring the packages to determine which packages do not have leaks so as to enable removal of the defective or leaking packages.
REFERENCES:
patent: 3319784 (1967-05-01), Granger
patent: 3396842 (1968-08-01), Bowen et al.
patent: 3590550 (1971-07-01), Gianese
patent: 3606014 (1971-09-01), Linn
American Brands, Inc.
Knowles Allen N.
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