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:
Nov. 09, 2021
Filed:
Jul. 22, 2019
Honeywell International Inc., Morris Plains, NJ (US);
Deepak Pitambar Mahajan, Bangalore, IN;
Sivanagamalleswara Bavisetti, Bangalore, IN;
Ramakrishna Rao P. V, Bangalore, IN;
Subhashree Rajagopal, Bangalore, IN;
Renukaprasad N, Bangalore, IN;
HONEYWELL INTERNATIONAL INC., Charlotte, NC (US);
Abstract
A stepper motor includes a rotor, a stator, a plurality of stator windings, and a plurality of permanent magnets. The permanent magnets are coupled to the outer surface of the rotor and are spaced apart from the plurality of stator poles, and each permanent magnet is shaped like an arc having an arc length and is circumferentially spaced apart from two adjacent permanent magnets by a spacing angle. In some instance, the arc length of each permanent magnet is equal, and the spacing angles are not all equal. In other instances, the arc length of two or more of the permanent magnets is unequal to the arc lengths of the other permanent magnets, and the spacing angles are not all equal.