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:
Mar. 15, 2011
Filed:
Sep. 04, 2003
Peter Murray, West Yorkshire, GB;
Michael I Henderson, St. Louis, MO (US);
Darko Marcetic, St. Louis, MO (US);
Joseph G Marcinkiewicz, St. Peters, MO (US);
Vinodkumar Sadasivam, St. Louis, MO (US);
Anandan Velayutham Rajarathnam, St. Louis, MO (US);
Peter Murray, West Yorkshire, GB;
Michael I Henderson, St. Louis, MO (US);
Darko Marcetic, St. Louis, MO (US);
Joseph G Marcinkiewicz, St. Peters, MO (US);
Vinodkumar Sadasivam, St. Louis, MO (US);
Anandan Velayutham Rajarathnam, St. Louis, MO (US);
Nidec Motor Corporation, St. Louis, MO (US);
Abstract
A clothes washing machine system including a method of detecting a load unbalance. The washing machine system includes a cabinet having a drum rotatably mounted therein. A motor is coupled to the drum for rotating the drum within the cabinet. A memory device is accessible by a processor, such as a digital signal processor (DSP). The memory contains program code for implementing a method that includes determining the motor torque ripple, determining the motor speed, and determining the load unbalance mass based on the motor torque and speed.