First out fluid pressure indicator

Details First out fluid pressure indicator First out fluid pressure indicator

1982-12-30

1984-09-11

Yasich, Daniel M.

Signals and indicators

Indicators

Fluid flow

116271, 116273, 137557, F16K 1110, G01L 1912

Patent

active

044703678

ABSTRACT:
Control system for indicating which, of a plurality of sensed pressure control fluid functions, first malfunctions. The system includes a plurality of series connected devices, each such device includes a shiftable valve which, in one position activates an indicator, and, in another position deactivates said indicator. Signalling connections link the devices such that all indicators, save the one governing the first malfunction, remain in the indicating condition they were in prior to such malfunction occurring.

REFERENCES:
patent: 3439706 (1969-04-01), Barrett
patent: 3877484 (1975-04-01), Theriot et al.
patent: 3963050 (1976-06-01), Theriot et al.
patent: 4055844 (1977-10-01), Hornbostel, Jr.
patent: 4116157 (1978-09-01), Evans
patent: 4121615 (1978-10-01), Bergeron
patent: 4194529 (1980-03-01), Hargraves et al.
patent: 4375789 (1983-03-01), Bergeron

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