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:
Jul. 19, 2005
Filed:
May. 28, 2003
Applicant:
Hirohisa Deguchi, Shizuoka, JP;
Inventor:
Hirohisa Deguchi, Shizuoka, JP;
Assignee:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V021/26 ; B60Q001/076 ;
U.S. Cl.
CPC ...
Abstract
A leveling apparatus for a vehicle headlamp has a case body, a motor disposed within the case body, a worm wheel supported by the case body rotatably but unmovably in the longitudinal direction and rotated by the motor and a shaft screwed into the worm wheel. The shaft and the worm wheel are screwed together by thread ridges provided on the inner side of the worm wheel and thread ridges provided on the outer periphery of a driven portion forming the shaft. The thread ridges on one side out of the thread ridges on two sides are formed by one to two pitches.