John F Parnell

US Patent:

52953920, Mar 22, 1994

Filed:

Mar 26, 1992

Appl. No.:

7/858068

Inventors:

Frederick W. Hensel - Butler PA
Mark F. Hensel - Butler PA
Steve D. Sandstrum - Kingwood TX
John Coleman - Sugarland TX
John H. Parnell - Houston TX
Stephen J. Boros - Friendswood TX

Assignee:

Tech Team, Inc. - Butler PA

International Classification:

G01M 328

US Classification:

73 495

Abstract:

A hydrostatic test system for subjecting a workpiece or test specimen to a predetermined test pressure until the workpiece fails by developing a leak detectable by the test system. The hydrostatic test system is a modular system readily adaptable to, and able to incorporate therein, a number of different physical devices for regulating, controlling, detecting, and registering functions and activities pertaining to leak detection. Among the devices adaptable in the hydrostatic test system for detecting a leak condition in the workpiece is a differential pressure switch and a static pressure switch, a combination differential and static pressure switch, or an accumulator associated with either a pressure transducer or a high accuracy transducer. The leak condition may be visually signaled by a lamp or indicator light or the sensing of a leak condition may be visually output to a CRT screen. The hydrostatic test system includes a number of test stations mounted in a large upright cabinet or unit, with each test station accommodating one test specimen.