Leak detector for containers

Details Leak detector for containers Leak detector for containers

G - Physics

01

M

73/118

G01M 3/02 (2006.01) G01M 3/36 (2006.01)

Patent

CA 2023518

ABSTRACT A leak detection apparatus and method provides uniform pressure application for leak testing of irregular containers. The leak detector utilizes compressed air at a regulated low pressure and includes timing and pneumatic valve components for providing a timed pressure application and release cycle and an inflatable shroud which envelopes the container and applies substantially uniform pressure thereto. Leak detection is accomplished by visual inspection of the container during and immediately after the pressure application cycle. An alternate embodiment detector provides semi-automated testing. Fill and vent valves are controlled by a microprocessor which receives data from a pressure transducer. A read only memory stores one or more selectable decay functions and the microprocessor compares the pressure decay rate of the shroud and the container under test with an appropriate stored function to determine whether the container is leaking and provides a two-state (Accept-Reject) output.

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