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Retainer Arrangement for a Replaceable Lamp Bulb Assembly
United States Patent
Nagengast et al. |
Patent Number: 5,095,410
Date of Patent: Mar. 10, 1992 |
| RETAINER ARRANGEMENT FOR A REPLACEABLE LAMP BULB ASSEMBLY |
| Inventors: |
William E. Nagengast; David R. McMahan, both of Anderson; Philip C. Filosa, Indianapolis; Harry L. Kirchebauer, Anderson, all of Ind. |
| Assignee: |
General Motors Corporation, Detroit, Mich. |
| Appl. No.: |
740780 |
| Filed: |
Aug. 6, 1991 |
| Int. Class: |
F21V 29/00; F21M 3/00 |
| U.S. Class: |
362/61; 362/294 |
| Field of Search: |
362/61, 80, 267, 226, 362/294, 373 |
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References Cited
U.S. PATENT DOCUMENTS |
| 3593017 |
July 1971 |
Cibie |
362/294 |
| 4731709 |
March 1988 |
Freudenreich |
362/294 |
| 4862337 |
August 1989 |
Ohshio et al. |
362/294 |
| 4931912 |
June 1990 |
Kawakami et al. |
362/294 |
| 5010453 |
April 1991 |
Ketterman |
362/294 |
Primary Examiner- Ira S. Lazarus
Assistant Examiner- Richard R. Cole Attorney, Agent, or Firm- Edward J. Biskup |
Abstract
A retainer arrangement for a replaceable lamp bulb assembly
that cooperates with a vent formed in the reflector body of a headlamp for
establishing a labyrinth type flow path for air to enter and exit the interior of the headlamp.
3 Claims, 1 Drawing Sheets |
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