Process for removing returnable bottles from circulation

Details Process for removing returnable bottles from circulation Process for removing returnable bottles from circulation

1996-05-03

1998-03-24

Nguyen, Tuan

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Sorting bottles, ampoules, jars, drinking vessels, or like...

209587, 209599, 209938, 250223B, 25055936, 356240, 356359, B07C 500, G01N 2100

Patent

active

057302987

ABSTRACT:
To determine whether stress cracks are present in the bottom area of a plastic bottle which make it unfit for further use, the bottle bottom is scanned in the potential crack region by the measuring beam of a laser distance-measuring instrument. From its output signal, the prevalence and depth of the cracks can be identified sufficiently to enable a decision to be made on the removal of the bottle from circulation.

REFERENCES:
patent: 4591996 (1986-05-01), Vachon
patent: 4707610 (1987-11-01), Lindow et al.
patent: 4903528 (1990-02-01), Balakrishnan et al.
patent: 5127726 (1992-07-01), Moran
patent: 5233199 (1993-08-01), Toyama
patent: 5405015 (1995-04-01), Bhatia et al.
Japanese Patent Abstract, vol. 6, No. 75 (P-114), May 12, 1982, No. JP-A-57 013 342 (Kirin Brewery) Jan. 23, 1982.

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