G - Physics – 01 – F
Patent
G - Physics
01
F
340/146
G01F 23/22 (2006.01)
Patent
CA 1115807
ABSTRACT OF THE DISCLOSURE TRANSPONDER SYSTEM INCLUDING AN OSCILLATOR/RIPPLE COUNTER CONTROLLING A FIXED GRAY CODE LOGIC NETWORK IN CIRCUIT WITH A DRIVER/GATE CIRCUIT FOR GENERATING "RED-ALERT" END CONDITION DIGITAL SIGNALS IN A STORAGE TANK GAUGING SYSTEM A "red alert" end condition digital signal is generated by a transponder system of the present invention formed essentially of MSI's (Medium Scale Integrated Chips) including an oscillator/ripple counter controlling a fixed Gray code logic encoding network in initiated by and is in power dependent relationship with a MARK- SPACE interrogation signal and has special utility in digitally monitoring product "overflow" conditions in source/product storage tank networks associated with an oil refinery and/or a chemical complex.
316512
Chevron Research And Technology Company
Sim & Mcburney
LandOfFree
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