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:
Oct. 14, 2003
Filed:
Jun. 26, 2001
Applicant:
Inventor:
Brian P. Stokes, Windham, NH (US);
Assignee:
Nutfield Technology, Inc., Windham, NH (US);
Primary Examiner:
Int. Cl.
CPC ...
H02K 3/04 ;
U.S. Cl.
CPC ...
H02K 3/04 ;
Abstract
A torque motor configuration that minimizes off-axis magnetic forces emanating from adjacent energized coils acting on a magnet. The motor includes a stator comprising a sleeve with conductive coils disposed thereon, and the stator further defining a rotor opening, and a rotor disposed in the rotor opening comprising a magnet disposed on a shaft with the sleeve being shorter than the magnet and the coils including turn around zones beyond respective ends of the sleeve. The motor may be incorporated into an optical scanning system including optical elements for detecting light from a light source.