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. 13, 1993
Filed:
Sep. 28, 1992
Applicant:
Inventors:
Harry C Buchanan, Jr, Spring Valley, OH (US);
Peter S Zhou, Spring Valley, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60S / ; B60S / ;
U.S. Cl.
CPC ...
1525013 ; 1525014 ; 1525027 ; 1525030 ; 74833 ; 74 48 ;
Abstract
An adjustment mechanism uniquely tailored to a space crank wiper system is used to adjust the wipe angle, specifically to lower the inwipe to give a depressed park position. The characteristic spacing of a four bar spatial mechanism that drives the wiper post is shortened by a jack screw mechanism that shifts an input crank closer to the wiper post. This lowers the inwipe position. A worm wheel selectively holds or turns the jackscrew, which axially moves a splined stub shaft in the end of a drive shaft to move the crank back and forth.