US 12,323,024 B2
Magnetic coupling device
David H. Morton, Boulder, CO (US); Paul J. Karp, Thornton, CO (US); and Yiwei Yan, Broomfield, CO (US)
Assigned to Magswitch Automation Company, Superior, CO (US)
Appl. No. 18/869,079
Filed by Magswitch Automation Company, Superior, CO (US)
PCT Filed Jun. 9, 2023, PCT No. PCT/US2023/024971
§ 371(c)(1), (2) Date Nov. 25, 2024,
PCT Pub. No. WO2023/239927, PCT Pub. Date Dec. 14, 2023.
Claims priority of provisional application 63/448,033, filed on Feb. 24, 2023.
Claims priority of provisional application 63/351,349, filed on Jun. 11, 2022.
Prior Publication US 2025/0112538 A1, Apr. 3, 2025
Int. Cl. H02K 49/10 (2006.01); H02K 11/21 (2016.01)
CPC H02K 49/108 (2013.01) [H02K 11/21 (2016.01)] 38 Claims
OG exemplary drawing
 
1. A magnetic coupling device for magnetically coupling to a ferromagnetic workpiece, comprising:
a housing;
a switchable magnetic flux source supported by the housing, the switchable magnetic flux source being switchable between at least an OFF state and an ON state; and
a plurality of pole portions, each having at least one workpiece engagement surface, the switchable magnetic flux source including at least one permanent magnet and at least one ferromagnetic core, the at least one permanent magnet surrounding the at least one ferromagnetic core.