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:
Feb. 08, 1994
Filed:
Dec. 30, 1991
Daniel L Fowler, Kentwood, MI (US);
Robertshaw Controls Company, Richmond, VA (US);
Abstract
A control system and methods of making and operating the control system are provided, the system comprising an RTD temperature sensor, an applying unit operatively interconnected to the sensor for applying a varying voltage across the sensor and thereby providing a certain current level through the sensor for each certain voltage value being applied across the sensor while the sensor is sensing a certain temperature, and a microcomputer operatively interconnected to the sensor and the applying unit for determining from the voltage being applied across the sensor the actual temperature being sensed by the sensor, the applying unit comprising a charge pump arrangement.