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.:
Date of Patent:
Mar. 27, 2018
Filed:
Sep. 27, 2013
Apple Inc., Cupertino, CA (US);
Nicholaus Ian Lubinski, San Francisco, CA (US);
James E. Wright, Cupertino, CA (US);
Jonah A. Harley, Los Gatos, CA (US);
John M. Brock, Menlo Park, CA (US);
Keith J. Hendren, San Francisco, CA (US);
Storrs T. Hoen, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A polarized electromagnetic actuator includes a movable armature, a stator, and at least one coil wrapped around the stator. At least one permanent magnet is disposed over the stator. When a current is applied to the at least one coil, the at least one coil is configured to reduce a magnetic flux of at least one permanent magnet in one direction and increase a magnetic flux of at least one permanent magnet in another direction. The movable armature moves in the direction of the increased magnetic flux.