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:
Mar. 03, 1998
Filed:
Apr. 17, 1996
Yoshitaka Kambe, Seto, JP;
Tamio Shinozawa, Anjo, JP;
Abstract
A solenoid coil generates a magnetic field within its bore when an electrical current is made to flow therethrough. A disc type rotor carrying thereon an armature coil is arranged in the bore along with a superconductor shield partly covering the disc type rotor. The magnetic field generated by the solenoid coil cannot pass through the superconductor shield and therefore detours around it and passes through an area devoid of the superconductor shield. The superconductor shield is also used to direct the electrical current flowing through the portions of the armature coil not covered by the superconductor shield, either from the periphery toward the center of the disc type rotor or conversely from the center toward the periphery thereof. With this arrangement, the Lorentz force applied to the radial electrical current is made to become a one-directional rotary force that drives the disc type rotor to rotate.