Gm Global Technolgoy Operations, Inc.

Daniel Gerald Jones

James Arthur Cole

Paul J Boor

Tony J Deschutter

Christopher James Martone

Raymond J Sapienza

Joseph E Safran

Daniel W Doubleday

A portable air pressure decay test apparatus for leak testing of a sealed system includes a hollow housing, an air pump having an inlet and an outlet disposed in the housing, and a controller disposed in the housing and connected to the pump for controlling the operation of the pump. A test head is mounted on the housing for releasably attaching to an attachment point of a sealed system. The test head is in fluid communication with the outlet of the pump. When the test head is attached to the attachment point of the sealed system, the controller operates the pump to provide pressured air to the sealed system and raise the pressure in the sealed system to a predetermined value. After the predetermined value of pressure is reached, the controller stops the pump and monitors the air pressure in the sealed system for a predetermined time interval to measure an air pressure decay rate. The controller then compares the measured air pressure decay rate with a predetermined air pressure decay rate to indicate if a leak rate of the sealed system is acceptable. The apparatus preferably includes a power source connected to the pump and the controller disposed in the housing. The power source is preferably a removable battery or the like.

Self-contained portable air pressure decay test apparatus

A vehicle braking system evacuation and fluid fill machine which utilizes a lightweight, compact filler head which is easily mounted on top of the vehicle master cylinder and a venturi type vacuum pump which effectively vacuums the air out of the vehicle brake system in order to allow brake fluid to enter and completely fill the brake system.

Vehicle brake vacuum evacuation and brake fluid fill machine

Growing community of inventors

Allenton, MI, United States of America

Daniel Gerald Jones