Fluid line leak detector

Details Fluid line leak detector Fluid line leak detector

1987-12-14

1989-04-04

Levy, Stewart J.

Measuring and testing

With fluid pressure

Leakage

G01M 304, F17D 304

Patent

active

048174157

ABSTRACT:
An improved fluid line leak detector of the type including a casing attached to the fluid line having a passageway therethrough forming an integral part of the fluid line, including a valve located within the passageway of the casing for dividing the fluid line into upstream and downstream portions and movable between an open position in which fluid can freely flow from the upstream portion to the downstream portion, and including an auxiliary flow passageway extending between the upstream and downstream portions of the fluid line for providing a passageway from the upstream portion to the downstream portion when the valve is in the closed position. The improvement includes a bar member movably attached to the casing within the passageway for movement between a first position in which the valve is free to move from the closed position to the open position and a second position in which the valve is prevented from moving to the open position; and a receptacle associated with the bar member and the auxiliary flow passageway for causing the bar member to move to the second position any time the valve is in the closed position and fluid passes through the auxiliary flow passageway from the upstream portion to the downstream portion of the fluid line.

REFERENCES:
patent: 3817087 (1974-06-01), Mooney
patent: 3940020 (1976-02-01), McCrory et al.
patent: 4051716 (1977-10-01), Mooney

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