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:
Jan. 13, 1987
Filed:
Sep. 24, 1985
Applicant:
Inventor:
Jacques Leclercq, Roisel, FR;
Assignee:
Saint-Gobain Vitiage, Aubervilliers Cedex, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60S / ;
U.S. Cl.
CPC ...
318443 ; 318444 ; 318480 ; 318D / ; 1525 / ; 219203 ;
Abstract
An automatic device for actuation of components for cleaning motor vehicle glass which includes a system for detection of the dirtiness of the glass, made up of a measuring photosensitive element receiving light directly through the glass and a reference photosensitive element isolated from any direct light and influenced only by the light transmitted through the interior of the glassing and an electronic circuit to receive and compare the responses of the two photosensitive elements and means to control the cleaning components automatically when the difference is response of these elements exceeds a certain threshold.