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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.:

US 12512742 B1

PDFFull Text
Date of Patent:
Dec. 30, 2025

Filed:

Nov. 05, 2020

Force-producing electromagnetic actuator

Applicant:

Dp World Logistics Us Holdings, Inc., Auburn Hills, MI (US);

Inventors:

Tim Lambert, Los Angeles, CA (US);

Noel Godinez, Los Angeles, CA (US);

Irfan-Ur-Rab Usman, Los Angeles, CA (US);

Erik Johnson, Los Angeles, CA (US);

George Tirone, Los Angeles, CA (US);

Assignee:

DP WORLD LOGISTICS US HOLDINGS, INC., Auburn Hills, MI (US);

Attorney:

Seyfarth Shaw LLP

Primary Examiner:

Shawki S Ismail

Assistant Examiner:

Lisa N Homza

Int. Cl.
CPC ...
H01F 7/11 (2006.01); H01F 7/06 (2006.01); H01F 7/08 (2006.01); H01F 27/28 (2006.01); H02K 1/14 (2006.01); H02K 1/18 (2006.01); H02K 1/20 (2006.01); H02K 3/04 (2006.01); H02K 5/22 (2006.01); H02K 9/22 (2006.01); H02K 11/21 (2016.01); H02K 11/25 (2016.01); H02K 41/025 (2006.01); H02K 41/03 (2006.01); H02K 49/04 (2006.01); H05K 7/20 (2006.01); H02K 7/10 (2006.01);
U.S. Cl.
CPC ...
H02K 41/03 (2013.01); H01F 7/064 (2013.01); H01F 7/081 (2013.01); H01F 27/28 (2013.01); H02K 1/14 (2013.01); H02K 1/143 (2013.01); H02K 1/18 (2013.01); H02K 1/20 (2013.01); H02K 3/04 (2013.01); H02K 5/225 (2013.01); H02K 9/227 (2021.01); H02K 11/21 (2016.01); H02K 11/25 (2016.01); H02K 41/025 (2013.01); H02K 41/031 (2013.01); H02K 49/046 (2013.01); H05K 7/20254 (2013.01); H01F 2007/086 (2013.01); H01F 7/11 (2013.01); H02K 7/10 (2013.01); H02K 2201/15 (2013.01); H02K 2213/12 (2013.01);
Abstract

An electromagnetic actuator for generating force is provided. The electromagnetic actuator includes a ferromagnetic body extending along a longitudinal axis, the ferromagnetic body comprising: a back-iron portion; and a pair of pole portions, extending from the back-iron portion, the back-iron portion connecting the pair of pole portions. The electromagnetic actuator further includes one or more magnetic-flux changing components at the pole portions, a respective magnetic-flux changing component located at a respective pole face, the respective magnetic-flux changing component configured to change magnetic flux density at a respective track-facing surface relative to the respective pole face. The electromagnetic actuator further includes electrical windings around the pole portions.

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