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Low speed moving magnet motor having a high inertia rotor
   
Document Number
US Patent 6498407
Issued Date
December 24, 2002
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Inventors
Hearn; Anthony R. (South Wonston,GB)
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Abstract
A low speed moving magnet motor (1) has a moving magnet (10) and a stationary coil (20) for carrying an electric current and disposed in relation to the moving magnet (10) such that a magnetic field generated when a current flows through the coil (20) causes the moving magnet (10) to move relative to the coil. A magnetic return path member (15) is fixed in relation to the coil (20) to provide a return path for a magnetic field generated by the coil (20) and the moving magnet (10). In an example, the magnetic return path member (15) is free of insulating laminations. The moving magnet (10) is mounted on a rotor (6) of the motor (1) which has a high inertia.
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Low speed moving magnet motor having a high inertia rotor - US Patent 6498407 Drawing
Drawing from US Patent 6498407
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Number of Claims:
23
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Owner
Published
December 24, 2002
Application Number
09/696,184
Filed
October 26, 2000
US Classification
310/36  
Int'l Classification
G11B   19/20   (20060101)   H02K   1/00   (20060101)   H02K   1/02   (20060101)   H02K   26/00   (20060101)  
Assistant Examiner
Attorney/Law Firm
Parent Case
This is a continuation of application Ser. No. PCT/GB99/01318, filed Apr. 28, 1999.
Priority Data
May 01, 1998 [GB] 9809436
USPTO Field of Search
310/12   310/17   310/36   310/13   310/156.25   360/264.7   360/264.8   360/264.9   360/265   360/266.2   360/266.4   360/266.5   360/266.6   360/266.7   360/266.8   360/266.9  
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