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:
Sep. 03, 2019
Filed:
Nov. 03, 2016
Immersion Corporation, San Jose, CA (US);
IMMERSION CORPORATION, San Jose, CA (US);
Abstract
A haptic actuator having a housing, a moveable mass, and first, second, and third electromagnets is disclosed. The first electromagnet is fixed to the housing. The moveable mass is suspended in the housing and at least partially surrounding the first electromagnet. The moveable mass has ferromagnetic material at a first end of the moveable mass, and ferromagnetic material at a second end opposite the first end. It further has a plurality of permanent magnets that are configured to magnetize the ferromagnetic material, such that when a current is applied to the first electromagnet, the ferromagnetic material of one of the first and second ends is attracted to the first electromagnet, and the ferromagnetic material of the other of the first and second ends is repelled. The second electromagnet and the third electromagnet are each fixed to the housing, and face opposite ends of the moveable mass.