US 12,463,520 B2
Electrodynamic braking systems, devices, and methods
Aaron D. Poole, Woodinville, WA (US); Joseph E. Skidmore, Woodinville, WA (US); Brad H. Walker, Woodinville, WA (US); Jerrold L. Gray, Woodinville, WA (US); Rajen N. Shah, Woodinville, WA (US); and Roy P. Diaz, Woodinville, WA (US)
Assigned to Orthopedic Wellness Laboratories, Inc., Woodinville, WA (US)
Filed by Orthopedic Wellness Laboratories, Inc., Woodinville, WA (US)
Filed on Sep. 12, 2022, as Appl. No. 17/942,312.
Claims priority of provisional application 63/243,008, filed on Sep. 10, 2021.
Prior Publication US 2023/0082352 A1, Mar. 16, 2023
Int. Cl. H02K 49/04 (2006.01); A63B 21/00 (2006.01); A63B 21/005 (2006.01); A63B 23/025 (2006.01)
CPC H02K 49/04 (2013.01) [A63B 21/0056 (2013.01); A63B 21/4003 (2015.10); A63B 23/025 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrodynamic contactless braking system comprising:
a plurality of electromagnets, each electromagnet having an air gap formed between a first electromagnet pole and a second electromagnet pole, and each electromagnet configured to generate a magnetic field of a character and for a duration sufficient to induce eddy currents on an electrically-conductive element moving withing the air gap of each of the plurality of electromagnets; and
a controller operatively coupled to each of the plurality of electromagnets, the controller configured to operate the plurality of electromagnets in parallel,
wherein the electrodynamic contactless braking system is operably coupled to a drive train and a head restraint such that, when a user is secured via the head restraint, rotation about an axis will result in an applied resistance to the head restraint via the electrically-conductive element moving within the air gap of each of the plurality of electromagnets.