Method of detecting defective portion of sealing

Details Method of detecting defective portion of sealing Method of detecting defective portion of sealing

1978-04-17

1980-02-12

Yasich, Daniel M.

Signals and indicators

Indicators

Chemically activated type

23230L, 73 493, B65B 3102, G01N 3122

Patent

active

041877985

ABSTRACT:
A method of detecting the defective portion of sealing comprising injecting into a moisture-tight container or package having a sealed portion a detection liquor consisting essentially of a colored liquid organic compound small in surface tension and high in permeability into small clearances. The defective portion of sealing is readily detected by exudation of the detection liquor outside the moisture-tight container.

REFERENCES:
patent: 1478445 (1923-12-01), McClure
patent: 1915965 (1933-06-01), Williams
patent: 2318307 (1943-05-01), Harris
patent: 3091114 (1963-05-01), Webster
patent: 3093242 (1963-06-01), Huyck et al.
patent: 3102082 (1963-08-01), Brewer
patent: 3555884 (1971-01-01), Yamamoto et al.
patent: 3744210 (1973-07-01), O'Lenick
patent: 3899295 (1975-08-01), Halpern
patent: 4125822 (1978-11-01), Perren et al.

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