Container leak detector

Details Container leak detector Container leak detector

1986-12-04

1988-05-31

Tokar, Michael J.

Measuring and testing

With fluid pressure

Leakage

73 52, G01M 332

Patent

active

047472987

ABSTRACT:
Container testing apparatuses and methods for detecting leaks in containers such as at the rims of the container. Preferred apparatus have opposing testing heads with receptacles for receiving ends of a container. Each testing head has two seals. A first or end seal is preferably adapted to seal at the end wall of the container. The second or perimetric seal is expandable against the sidewall of the container. The perimetric seal has an internal expansion chamber which is pressurized to expand the seal into sealing engagement with the container. A differentially pressurized testing fluid is transmitting to a chamber formed between the seals and the container. A detector selectively senses changes in the container associated with the existence of a leak through which the differential pressure of the testing fluid is communicated.

REFERENCES:
patent: 1825744 (1931-10-01), Landrum
patent: 2093429 (1937-11-01), Foss
patent: 2339639 (1944-01-01), Henszey
patent: 2527560 (1950-10-01), Maher
patent: 3930401 (1976-01-01), Filler
patent: 3985018 (1976-10-01), Fox
patent: 3991622 (1976-11-01), Oowada
patent: 4117718 (1978-10-01), Hayward

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