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:
Dec. 13, 2005
Filed:
Nov. 08, 2002
David J. Schanin, Denver, CO (US);
David J. Schanin, Denver, CO (US);
USA Technologies, Inc., Malvern, PA (US);
Abstract
Power-management control methods and apparatus are disclosed. Power-management control is achieved by monitoring operational characteristics (such as current, compressor relay control signals, internal temperature) of an appliance during an extended period of operation, analyzing such operational characteristics to derive a characteristic cycle time of the cooling system of the appliance, and automatically decoupling the appliance from a power source in response to control signals provided by sensor(s). The appliance may be automatically coupled to the power source after expiration of a shutdown time period, which is automatically adjusted by the power management control system based upon the characteristic cycle time of the cooling system.