Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1996-12-31
2000-01-11
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340511, 340531, 340555, 340612, 340619, 702 57, 250900, 359110, 359143, G08B 1900, H04B 1008
Patent
active
060140763
ABSTRACT:
An apparatus and method for monitoring parameters of combustible liquids within a tank includes a plurality of sensors disposable within the tank for generating signals indicative of parameters of the contents of the tank, a display disposed on the outside of the tank for generating human perceptible signals indicating parameters regarding the contents of the tank, and a nonconductive communications mechanism for conveying signals between the sensors and the display. The sensor generates electrical signals indicative of the parameter(s) measured. The electrical signal is then converted into an optical signal such as pulses of light. The optical signal is conveyed along the electrically nonconductive communications mechanism to the display. The optical signal is then converted back into an electrical signal outside of the tank where it may be processed to produce a human perceptible signal indicative of the parameter(s) measured.
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American National Standard, UL 913, Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (classified) Locations--Jul. 29, 1988.
Crosland Donnie L.
Global Tech, Inc.
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