Fault display device for gyroscopic instruments

Details Fault display device for gyroscopic instruments Fault display device for gyroscopic instruments

1988-09-26

1989-08-29

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340975, 340967, 73178R, G08B 2100

Patent

active

048621498

ABSTRACT:
Device for visualizing failures for gyroscopic instruments comprising, inendently of the size of the indicator which incorporates it, an intuitive warning means accounting simultaneously for the supply of the liability and for the speed conformity of the gyroscope to the required values. It comprises two complementary display zones in the rolling dial (5 and 6) made up by means of elements of liquid crystals presenting an opaque appearance in the presence of a supply voltage and showing a color required in the absence of a supply voltage. One of the zones (5) is comprised of a single active element informing of the disappearance of the supply while the other zone (6) is comprised of a plurality of juxtaposed active elements, which are progressively switched and which give a synoptic perception of the speed reduction of the gyroscopic top of the instrument.

REFERENCES:
patent: 2504582 (1950-04-01), Pugin
patent: 3732739 (1973-05-01), Catford et al.
patent: 3807238 (1974-04-01), Chombard
patent: 3851324 (1974-11-01), De Boer et al.
patent: 4387360 (1983-06-01), Jourdan et al.
patent: 4419832 (1983-09-01), Schmidt
patent: 4463355 (1984-07-01), Schultz et al.
patent: 4583094 (1986-04-01), Mosier
patent: 4654582 (1987-03-01), Ito

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