Indicator for a reciprocating member

Details Indicator for a reciprocating member Indicator for a reciprocating member

1990-04-23

1991-05-07

Ro, Bentsu

Electricity: motive power systems

With signals, meters, recorders or testing devices

318652, G01R 2900

Patent

active

050139843

ABSTRACT:
A reciprocating member has a series of LED's arranged in a signal line corresponding to the main line of movement of the reciprocating member. Associated with the LED's are dot-bar drivers, controlled by voltage for energizing the LED's serially, along the signal line according to the position of the reciprocating member along its main line. Traverse potentiometers are provided for actuation by the reciprocating member for controlling voltage applied to the LED's, and manually adjustable remote potentiometers oppose the voltage controlled by the traverse potentiometers.

REFERENCES:
patent: 3394292 (1968-07-01), Flum
patent: 3504246 (1970-03-01), Russell et al.
patent: 3714537 (1973-01-01), Bur
patent: 4024767 (1977-05-01), Kampf
patent: 4190792 (1980-02-01), Chan
patent: 4242621 (1980-12-01), Spaulding
patent: 4694390 (1987-09-01), Lee
patent: 4961269 (1990-10-01), Luttmer et al.

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