Patent ID: 6826957
Filing Date: 2004-12-07
Classification: G01M

Abstract:
A portable air pressure decay test apparatus for leak testing of a sealed system, comprising:a hollow housing; an air pump having an inlet and an outlet, said pump being disposed in said housing for providing pressured air at said outlet; a controller disposed in said housing and connected to said pump for controlling the operation of said pump; an actuator lever attached to an upper portion of said housing and to a first end of a rod member, the rod member extending through said housing; and a test head attached to a second end of said rod member for releasably attaching to an attachment point of a sealed system, said test head being in fluid communication with said outlet of said pump, said actuator lever operable to move said rod member and said test head relative to said housing, whereby when said test head is attached to the attachment point of the sealed system, said controller operates said pump to provide pressured air to the sealed system and raise the pressure in the sealed system to a predetermined value, and when said predetermined value is reached, the controller stops said pump and monitors the air pressure in the sealed system for a predetermined time interval to measure an air pressure decay rate and compares the air pressure decay rate measured with a predetermined air pressure decay rate to indicate if a leak rate of the sealed system is acceptable.