Wheel alignment system

Details Wheel alignment system Wheel alignment system

1993-01-14

1994-05-24

Cuchlinski, Jr., William A.

Geometrical instruments

Straight-line light ray type

Alignment device

3320318, 356155, G01B 11275, G01B 7315

Patent

active

053137116

ABSTRACT:
An automatic wheel alignment system for aligning the wheels of an automotive vehicle includes head units adapted for coupling to the wheels of the automotive vehicle and a hand held module. The wheel units provide angle information related to the alignment of the wheels of the automotive vehicle. The hand held module is coupled to the wheel alignment units and provides information to an operator through a liquid crystal display. The hand held module includes a controller and memory means. A keypad input is provided for receiving an input from the operator. The liquid crystal display includes an liquid crystal display matrix for forming an image. A contrast control means is coupled to the liquid crystal display and provides a contrast signal to the liquid crystal display.

REFERENCES:
patent: 4274738 (1981-06-01), Hollandsworth et al.
patent: 4381548 (1983-04-01), Grossman et al.
patent: 4594789 (1986-06-01), Marino et al.
patent: 4718759 (1988-01-01), Butler
patent: 4899218 (1990-02-01), Waldecker et al.
patent: 4904939 (1990-02-01), Mian

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