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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 12355325 B1

PDFFull Text
Date of Patent:
Jul. 08, 2025

Filed:

Nov. 05, 2020

System, electromagnetic actuator and track for braking

Applicant:

Hyperloop Technologies, Inc., Los Angeles, CA (US);

Inventors:

Yingjie Li, Los Angeles, CA (US);

Arbi Gharakhani Siraki, Los Angeles, CA (US);

Rachel Ozer, Los Angeles, CA (US);

Shahriyar Beizaee, Los Angeles, CA (US);

Erik Johnson, Los Angeles, CA (US);

Assignee:

HYPERLOOP TECHNOLOGIES, INC., Los Angeles, CA (US);

Attorney:

Seyfarth Shaw LLP

Primary Examiner:

Tulsidas C Patel

Assistant Examiner:

Joshua Kiel M Rodriguez

Int. Cl.
CPC ...
H02K 41/03 (2006.01); H01F 7/06 (2006.01); H01F 7/08 (2006.01); H01F 7/11 (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 7/10 (2006.01); H02K 9/22 (2006.01); H02K 11/21 (2016.01); H02K 11/25 (2016.01); H02K 41/025 (2006.01); H02K 49/04 (2006.01); H05K 7/20 (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

A system (), electromagnetic actuator () and track () for braking are provided. The actuator () includes pole portions () extending from back-iron portions. Respective longitudinal axes () of the pole portions () are arranged about parallel to one another and about perpendicular to a common movement axis (). A pole pitch of the pole portions () is selected to induce eddy currents in a segmented track (), such that the eddy currents are present in a skin depth at more than one surface of segments () of the segmented track () when the pole portions () are moving at given speeds. Eddy current generated losses occupy about an entirety of a volume of a segment () of the track () below a given intermediate speed, and the eddy current generated losses occupy at least one third of the volume of the segment () at a given maximum speed greater than the given intermediate speed. Individually controllable electrical windings are around respective pole portions ().

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