| Abstract: A method of detecting leaks and measuring volumes as well as a device,
the Power-free Pump Module (PPM), provides a self-contained leak test and
volume measurement apparatus that requires no external sources of
electrical power during leak testing or volume measurement. The PPM is a
portable, pneumatically-controlled instrument capable of generating a
vacuum, calibrating volumes, and performing quantitative leak tests on a
closed test system or device, all without the use of alternating current
(AC) power. Capabilities include the ability is to provide a modest
vacuum (less than 10 Torr) using a venturi pump, perform a pressure rise
leak test, measure the gas's absolute pressure, and perform volume
measurements. All operations are performed through a simple rotary
control valve which controls pneumatically-operated manifold valves. |
| Filed: 5/16/2012 |
| Application Number: 13/473063 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Attribution for Derwent World Patents Index Records published on Sandia ® Clarivate. All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |