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. 07, 2006
Filed:
Sep. 30, 2004
Roger Alan Plemmons, Asheville, NC (US);
John Herman Blakely, Weaverville, NC (US);
Gregory A. Helton, Asheville, NC (US);
Roger Alan Plemmons, Asheville, NC (US);
John Herman Blakely, Weaverville, NC (US);
Gregory A. Helton, Asheville, NC (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
A motor control technique is disclosed in which a first algorithm controls interruption of power to a motor in a first current range. A second algorithm controls interruption of power in a second, higher current range. The algorithms may be adapted to specific motor sizes, ratings or classes. The extended range may extend from a transition point (e.g., 6–10 times the FLC of the motor) to an upper limit. The upper limit may be determined based upon a current rating of an instantaneous trip device.