Leakage detection with flexible bag

Details Leakage detection with flexible bag Leakage detection with flexible bag

1986-07-16

1987-09-01

Levy, Stewart J.

Measuring and testing

With fluid pressure

Leakage

G01M 332

Patent

active

046899871

ABSTRACT:
A bag for use in leak testing vacuum packages, by placing a vacuum package in a bag of elastic flexible foil, providing a pressure differential between the outside and the inside of the bag, and monitoring the pressure variation in the space between the outside of the package and the inside of the flexible bag. According to the invention, the bag is double-walled with the inner and outer walls merging into each other at the open end of the bag, is provided with a dimensionally stable frame between the walls of the bag, and is further provided with an inlet for admitting compressed air into the space between the walls of the bag.

REFERENCES:
patent: 3027753 (1962-04-01), Harder, Jr.
patent: 4055984 (1977-11-01), Marx
patent: 4593554 (1986-06-01), Aarts

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