Abstract: A system for detecting leaks is provided comprising an accumulator, a flow controller in communication with the accumulator, and a flow meter/sensor in communication with the accumulator, the flow controller and a UUT. The flow meter is structured to supply gas from the accumulator to the UUT and measure a flow rate of the supplied gas, the flow meter providing feedback to the flow controller representing the flow rate, and the flow controller responding to the feedback by supplying flow compensation gas to the accumulator to maintain a desired pressure in the accumulator. Methods are also provided for detecting small leaks, especially with large units under test (“UUTs”).

Abstract: The disclosure provides a system for detecting leaks comprising an accumulator, a flow controller in communication with the accumulator, and a flow meter/sensor in communication with the accumulator, the flow controller and a UUT. The flow meter is structured to supply gas from the accumulator to the UUT and measure a flow rate of the supplied gas, the flow meter providing feedback to the flow controller representing the flow rate, and the flow controller responding to the feedback by supplying flow compensation gas to the accumulator to maintain a desired pressure in the accumulator. Methods for detecting small leaks, especially with large units under test (“UUTs”), are also disclosed.

Abstract: A system for detecting leaks is provided comprising an accumulator, a flow controller in communication with the accumulator, and a flow meter/sensor in communication with the accumulator, the flow controller and a UUT. The flow meter is structured to supply gas from the accumulator to the UUT and measure a flow rate of the supplied gas, the flow meter providing feedback to the flow controller representing the flow rate, and the flow controller responding to the feedback by supplying flow compensation gas to the accumulator to maintain a desired pressure in the accumulator. Methods are also provided for detecting small leaks, especially with large units under test (“UUTs”).

Abstract: The disclosure provides a system for detecting leaks comprising an accumulator, a flow controller in communication with the accumulator, and a flow meter/sensor in communication with the accumulator, the flow controller and a UUT. The flow meter is structured to supply gas from the accumulator to the UUT and measure a flow rate of the supplied gas, the flow meter providing feedback to the flow controller representing the flow rate, and the flow controller responding to the feedback by supplying flow compensation gas to the accumulator to maintain a desired pressure in the accumulator. Methods for detecting small leaks, especially with large units under test (“UUTs”), are also disclosed.

Abstract: Apparatus for performing leak testing on products is disclosed. Specifically, the present invention includes a method, system, and apparatus for performing an adaptive leak test on products under test.

Abstract: Apparatus for performing leak testing on products is disclosed. Specifically, the present invention includes a method, system, and apparatus for performing an adaptive leak test on products under test.

Abstract: A robot using a shielded-arc welding torch has an automatic tool change station in a small area of the work envelope. An effector adaptor is attached to the robot effector. The torch is secured to a tool adaptor. The tool adaptor body has a pair of semi-circular shells around it, with upper and lower mounting flanges on each of the shells and projecting in directions radially outward from the tool adaptor. A groove in the effector adaptor receives the upper flanges which are locked in the grooves by outward spring bias on the shells. A tool changer at the tool change station has a pair of grippers operable on the shells to squeeze them toward each other to remove the upper flanges from the effector adaptor groove, and remove the tool adaptor from the effector adaptor. A tool storage magazine has a retainer groove at each of multiple circularly-spaced tool receiving pockets.