Method and apparatus for detecting leaks in electrically-insulat

Details Method and apparatus for detecting leaks in electrically-insulat Method and apparatus for detecting leaks in electrically-insulat

1992-08-24

1995-10-03

Snow, Walter E.

Electricity: measuring and testing

For insulation fault of noncircuit elements

324559, G01R 3112

Patent

active

054555078

ABSTRACT:
A method and apparatus are described for detecting defects in a condom, protective glove or other similar product during manufacture. The product to be tested is situated on an electrically conductive mandrel, the shape of the mandrel corresponding to the shape of the product. Ions of air are generated and driven toward the mandrel. The flow of ions of air into the mandrel through any holes or tears in the product is detected by measuring the constant current flow through the mandrel. Thickness variations in the product are detected by measuring the duration of the transient current flow through the mandrel.

REFERENCES:
patent: 2609094 (1952-09-01), Fry
patent: 4891597 (1990-01-01), Asars
patent: 5204632 (1993-04-01), Leach

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