Flow failure detector

Details Flow failure detector Flow failure detector

1989-03-06

1990-06-26

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340611, 73744, 7386154, 200 82E, G08B 2100

Patent

active

049375580

ABSTRACT:
A device and system for detecting the existance of fluid flow from a fluid source to a pipeline includes a cylinder with an inlet at a first end and a lateral outlet. A piston in the cylinder is moveable from a no-flow position abutting the first end in which it is maintained by a spring, to a flow position in which the piston at least partly opens the lateral outlet, by fluid flowing from the inlet to the lateral outlet. A magnetic switch detects the no-flow position of the piston, and actuates a radio transmitter to send a no-flow condition alarm. The device is used to detect interruptions in the supply of additives to oil and gas pipelines.

REFERENCES:
patent: 1846577 (1932-02-01), Barber
patent: 4166936 (1979-09-01), Tice
patent: 4365125 (1982-12-01), Keller
patent: 4466293 (1984-08-01), Huhtala
patent: 4500759 (1985-02-01), deFasselle et al.
patent: 4603707 (1986-08-01), Gregoire et al.
patent: 4642614 (1987-02-01), Cook

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