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:
Apr. 22, 2014
Filed:
Sep. 28, 2009
Cesare Stefanini, Vicopisano, IT;
Paolo Dario, Leghorn, IT;
Maria Chiara Carrozza, Pisa, IT;
Sarah DE Cristofaro, Brindisi, IT;
Cesare Stefanini, Vicopisano, IT;
Paolo Dario, Leghorn, IT;
Maria Chiara Carrozza, Pisa, IT;
Sarah De Cristofaro, Brindisi, IT;
Abstract
An electromagnetic step-by-step wobbling micromotor comprises an inner component and an annular component being external to the inner one. The outer component may be a stator and the inner component a rotor, or vice versa. The inner component has three or more poles with a winding on each pole, and an external surface facing an internal surface of the outer component. During the operation of the micromotor each winding is powered. The external and internal surfaces have toothed surfaces. Each tooth has a peak radius which is different from the valley radius.