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. 25, 2003
Filed:
May. 18, 2001
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 4/100 ;
U.S. Cl.
CPC ...
H02K 4/100 ;
Abstract
A linear motor includes tubular outer yoke ( ), tubular inner yoke ( ) disposed in outer yoke ( ), coil ( ) provided to inner yoke ( ), permanent magnet (5 , 5 ) vibrating following a magnetic flux produced by coil ( ), and vibrator ( ) made of magnetic material and supporting permanent magnets (5 , 5 ). Magnetic loop produced by outer yoke ( ) and inner yoke ( ) travels through vibrator ( ) free from interference by vibrator ( ) because vibrator ( ) is made of magnetic material. As a result, the linear motor vibrates efficiently.