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:
Jul. 09, 2019
Filed:
Oct. 30, 2017
Applicant:
Rockwell Automation Technologies, Inc., Milwaukee, WI (US);
Inventors:
James J. Kinsella, Pleasant View, TN (US);
Christopher J. Wieloch, Brookfield, WI (US);
Assignee:
Rockwell Automation Technologies, Inc., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H01H 9/56 (2006.01); H01H 50/54 (2006.01); H01H 50/90 (2006.01); H01H 1/20 (2006.01);
U.S. Cl.
CPC ...
H01H 9/563 (2013.01); H01H 50/54 (2013.01); H01H 50/546 (2013.01); H01H 50/90 (2013.01); H01H 1/2016 (2013.01);
Abstract
A method and apparatus using electromagnetic switching in a two-step connection process is provided to minimize surge currents and torque oscillations in three-phase motors during starts.