US 11,811,269 B2
Stacked lamination rotor
Seth R. Sanders, Berkeley, CA (US); Kyle B. Gaiser, Union City, CA (US); Greg Olsen, Union City, CA (US); Mark J. Holloway, Mountain View, CA (US); Roger Nelson Hitchcock, San Leandro, CA (US); Peter Thomas Tennessen, Oakland, CA (US); Matthew K. Senesky, Berkeley, CA (US); Edward Young Chiao, San Jose, CA (US); Darlene Conolly, Union City, CA (US); and Keenan Rodewald, Union City, CA (US)
Assigned to AMBER KINETICS, INC., Union City, CA (US)
Filed by Amber Kinetics, Inc., Union City, CA (US)
Filed on Apr. 27, 2022, as Appl. No. 17/730,507.
Application 17/730,507 is a continuation of application No. 16/787,017, filed on Feb. 11, 2020, granted, now 11,362,558.
Claims priority of provisional application 62/803,892, filed on Feb. 11, 2019.
Prior Publication US 2022/0255382 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02K 7/02 (2006.01); H02K 1/30 (2006.01); H02K 15/16 (2006.01); H02K 15/02 (2006.01)
CPC H02K 1/30 (2013.01) [H02K 7/025 (2013.01); H02K 15/02 (2013.01); H02K 15/165 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A flywheel rotor, comprising:
a plurality of adjacent laminations, stacked one on top of another, wherein each lamination has an identical scalloped solid circular shape, with no center hole, which is symmetric about a center axis, and wherein the scalloped circle shape has a plurality of scallop regions that protrude exterior to an outer circumference of the solid scalloped circular shape, and wherein at least one of the protrusions in each of the adjacent laminations includes a through hole that is entirely exterior to the outer circumference; and
at least one bolt that passes through the at least one through hole in each of the plurality of adjacent laminations and fastens together the plurality of adjacent laminations.