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:
Sep. 20, 1977
Filed:
Sep. 16, 1975
Applicant:
Inventors:
Alan Attwood, Conwy, WA;
Eric Roberts Laithwaite, Long Ditton, EN;
Assignee:
National Research Development Corporation, London, EN;
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 13 ; 1041 / ;
Abstract
A primary member for a linear induction machine comprises a magnetic core having four parallel limbs with a respective pole face on each limb. Thus the core is similar to an E-core with an additional limb. Windings are preferably disposed only on the inner two limbs so that there are effectively no end windings, all windings coupling with the core.
Attwood, Alan. (1977). Electromagnetic levitation (U.S. Patent No. 4049983). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4049983
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile