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:
Dec. 26, 1991
Dennis Devera, Carol Stream, IL (US);
James Pearson, Downers Grove, IL (US);
Bruce Weatherhead, Wilmette, IL (US);
George Jarosch, Elk Grove, IL (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A system for controlling vehicle passenger compartment comfort. An electronic controller receives input from: (i) a thermistor array sensing blower plenum discharge temperature, (ii) a user movable Level Select Control (iii) a potentiometer sensing the position of a servo driven heater core water valve, (iv) an engine rpm tachometer generator and (v) a blower speed signal. The controller drives the servomotor for the water valve at a 'High' rate until the valve position potentiometer indicates that the valve is within fifteen degrees (15.degree.) of the target, whereupon the controller drives the servomotor at a 'Low' speed.