The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1989
Filed:
Aug. 29, 1988
Applicant:
Inventors:
William E Nagengast, Anderson, IN (US);
John M Luallin, Anderson, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362 61 ; 362294 ; 362345 ;
Abstract
A ventilation system for a replaceable bulb headlamp in which the reflector member is formed with at least two slots in line with and behind the sealant channel and each slot is adapted to slidingly receive a vent device which establishes a labyrinth-type flow path for air to enter and exit from the interior of the headlamp.