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:
Sep. 28, 1999
Filed:
Mar. 17, 1998
Larry Stephen Bias, Bartlett, TN (US);
Chung Ming Cheng, Tsuen Wan, HK;
Hunter Fan Company, Memphis, TN (US);
Abstract
A microprocessor-controlled electronic thermostat system and method that detects the status of a thermostat output relay to determine if the relay has been set to a state as requested by the microprocessor and, if not, providing a boosted or increased voltage to the output relay in an attempt to correct the relay setting. Preferably, the system determines if the output relay is correctly turned off as requested by the microprocessor, and, if it is not, a first boosted voltage value is provided to the output relay in an attempt to turn the relay off. If this fails, a second higher boosted voltage value is provided to turn the output relay off. This continues periodically until an off condition is detected.