Display unit of speedometer for automobile

Details Display unit of speedometer for automobile Display unit of speedometer for automobile

1983-04-13

1986-12-23

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

340 52F, 34081501, B60Q 100

Patent

active

046315136

ABSTRACT:
A display unit for a speedometer for an automobile, wherein car speed is sensed and displayed in at least two modes including a standard scale mode when car speed is above a set standard speed, and an enlarged scale mode when car speed falls below a lower set speed. The display unit includes a bar graph display, and a scale display, both of which are controlled in correspondence with car speed to operate in either the standard scale mode or the enlarged scale mode.

REFERENCES:
patent: 3714569 (1973-01-01), Bruning, Jr. et al.
patent: 4291295 (1981-09-01), Arnold
patent: 4293843 (1981-10-01), Bertoloni et al.
patent: 4461175 (1984-07-01), Baumgart et al.

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