Gordon R Plank

US Patent:

41678680, Sep 18, 1979

Filed:

Nov 27, 1978

Appl. No.:

5/963804

Inventors:

Stephen N. Bobo - Cohasset MA
Gordon R. Plank - Medfield MA

Assignee:

The United States of America as represented by the Secretary of the
Department of Transportation - Washington DC

International Classification:

G01M 300

US Classification:

73 495

Abstract:

A hose testing system comprising a source of pressurizing fluid, a distribution system for supplying the fluid from the source to a hose under test, a pump for pumping fluid through the distribution system into the hose under test, a regulator for maintaining a constant volume flow rate for the fluid being pumped into the hose and a gauge for indicating the fluid pressure existing in the hose at any specific time. Because of the constant volume flow rate provided by the test system, the monitored pressure vs. time of the hose under test is indicative also of its pressure vs. volume. Consequently, the system can be used to dynamically measure the internal pressure vs. volume characteristic of a given hose which measurements can in turn be employed to predict its structural integrity.