Electronic control for a fluid system

Details Electronic control for a fluid system Electronic control for a fluid system

1990-01-05

1991-04-02

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

7386143, 7386147, 137557, G08B 2100

Patent

active

050050060

ABSTRACT:
The invention is an electronic monitor for monitoring the pressure of in fluid circuitry and governing the shutdown in such mechanisms as dynamometers. The monitor has two pressure switches at every point in the fluid circuitry where pressure is sampled, and has a monitor circuit responding to signals from the switches to selectively energize lights indicating the status of the fluid circuitry. The monitor has a circuit for shutting down the dynamometers and other equipment when pressure falls below a predetermined threshold at one of the pressure monitoring points. The monitor also has a circuit for detecting which of the points is first to experience a fall in pressure below the threshold when the fluid circuitry as a whole is losing pressure.

REFERENCES:
patent: 2790163 (1957-04-01), Armstrong et al.
patent: 3720182 (1973-03-01), Harrah
patent: 4156864 (1979-05-01), Ingram

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