Automatic air leak testing apparatus and method

Details Automatic air leak testing apparatus and method Automatic air leak testing apparatus and method

1975-07-31

1977-06-07

Hoffman, Drayton E.

Classifying, separating, and assorting solids

Adhesion

Coated surface or mass

198345, G01M 326

Patent

active

040277976

ABSTRACT:
Batteries are moved along a first roller type conveyor to a leak testing station, above which is located an assembly having a plurality of nozzles matable over battery cell inlets. A first set of alternate cells is supplied with air at a given pressure, and metering means notes pressure change. Thereupon, the remaining alternate cells receive the same treatment. If the cells do not leak, the battery advances from the testing station along the roller conveyor. If a leak is detected, a push bar connected to a cable system below the rollers ejects the battery transversely from the testing station along to a second conveyor, thereby isolating leaky batteries either for removal or further testing to locate more precisely the leak.

REFERENCES:
patent: 3000519 (1961-09-01), Purnell
patent: 3170572 (1965-02-01), Harrison
patent: 3785195 (1974-01-01), Yasuhiro et al.
patent: 3883744 (1975-05-01), Steffel

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