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Vehicle Headlamp Adjustment Device
United States Patent
McMahan et al. |
Patent Number: 5,063,480
Date of Patent: Nov. 5, 1991 |
| VEHICLE HEADLAMP ADJUSTMENT DEVICE |
| Inventors: |
David R. McMahan; William E. Nagengast; Luis A. Mateos,
all of Anderson, Ind. |
| Assignee: |
General Motors Corporation, Detroit, Mich. |
| Appl. No.: |
566905 |
| Filed: |
Aug. 13, 1990 |
| Int. Class: |
B60Q 1/02 |
| U.S. Class: |
362/61; 362/66 |
| Field of Search: |
362/61, 66, 345, 80, 82, 83, 418, 419, 420, 421 |
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References Cited
U.S. PATENT DOCUMENTS |
| 4922387 |
May 1980 |
Ryder et al. |
362/80 |
Primary Examiner- Ira S. Lazarus
Assistant Examiner- Sue Hagarman
Attorney, Agent, or Firm- Edward J. Biskup |
Abstract
An adjustment device for a headlamp assembly that provides aiming adjustment of the
headlamp unit in a horizontal plane, after which the adjustment device can be set to visually indicate
that the headlamp unit is at a zero ("O") reference marking and also permit re-calibration of the lamp
unit if the latter is re-aimed.
3 Claims, 2 Drawing Sheets |
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