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:
Aug. 31, 2010
Filed:
Dec. 14, 2007
Martin R. Pais, North Barrington, IL (US);
Shumin Cheng, Vernon Hills, IL (US);
Detlef Schmidt, Schaumburg, IL (US);
Martin R. Pais, North Barrington, IL (US);
Shumin Cheng, Vernon Hills, IL (US);
Detlef Schmidt, Schaumburg, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An electric motor () for controlling the lateral displacement of a shaft () connected to a rotor () of the electric motor () is provided. The electric motor () includes one or more stator conductors () for carrying a current and one or more permanent magnets () to produce a magnetic field (). The one or more stator conductors () interact with the magnetic field () when the power is applied, to purposely generate a force with an axial (Fa) and a circumferential component (Fc). The electric motor () includes the shaft () that travels along a rotor axis () in an axial direction when the power is applied, under an action of the axial component of the force. However, when the power is removed, the shaft () retracts under the action of a biasing force from a tension device ().