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. 30, 1990
Filed:
Jul. 20, 1988
Donald L Millerd, San Diego, CA (US);
Marl J Bell, Valley Center, CA (US);
Mist-Defy'R, Inc., LaJolla, CA (US);
Abstract
A moisture sensor for sensing ambient moisture in the vicinity of a window having a window wiper. The sensor comprises a plurality of spaced apart conductive strips having an exposed surface. The electrical resistance between adjacent strips is dependent on the ambient moisture. The sensor also includes means for repetitively removing the moisture from the exposed surface and in the region between the strips. The conductive strips are located at a position other than in the area of sweep of the window wiper on the window and at least one of the removing means and the plurality of conductive strips is coupled to the window wiper, whereby the at least one of the removing means and the plurality of conductive strips is actuated by the window wiper and operates in synchronism therewith.