Apparatus and method of detecting leaks in pressurized piping sy

Details Apparatus and method of detecting leaks in pressurized piping sy Apparatus and method of detecting leaks in pressurized piping sy

1989-07-10

1990-04-24

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 405R, 73 37, G01M 326

Patent

active

049189689

ABSTRACT:
A leak detector including a fill cylinder and a pressure cylinder mounted in spaced relationship on a frame. The fill cylinder includes a movable liquid-tight piston, valved ports on one side of the piston, and a vent port on the opposite side. The pressure cylinder includes a movable pressure piston, a pressure regulator in communication with one side of the piston, and an access port on the opposite side. A connecting rod interconnects the liquid-tight piston and the pressure piston and spans the space between the cylinders. A pointer attached to the connecting rod registers with a calibrated scale on the frame and movement of the pointer toward the fill cylinder indicates a leak in the pressurized liquid piping system being tested.

REFERENCES:
patent: 2343792 (1944-03-01), Overbeck et al.
patent: 3034357 (1962-05-01), Brown
patent: 3375720 (1968-04-01), Whiting
patent: 3438247 (1969-05-01), Lotti et al.
patent: 3678754 (1972-07-01), Amir et al.
patent: 4199992 (1980-04-01), Myles
patent: 4375162 (1983-03-01), Eppley

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