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:
Nov. 24, 1992
Filed:
Nov. 12, 1991
Applicant:
Inventor:
David C Smart, Waterloo, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60S / ;
U.S. Cl.
CPC ...
318444 ; 318D / ;
Abstract
A vehicle windshield wiper control system has an electrically driven wiper motor, a wiper control switch coupled to the motor and having a delay position wherein the motor operates intermittently, a vehicle speed sensor, and a control unit coupled to the control switch, the motor, and to the speed sensor. The control operation of the motor, the control unit periodically executes a method or algorithm which causes the system to vary the dwell time between motor operations as a function of sensed vehicle speed, and optionally as a function of an operator adjustable dwell time control.