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. 07, 1978
Filed:
Apr. 27, 1977
Shinji Nakamura, Kawasaki, JP;
Kiyoshi Mihirogi, Odawara, JP;
Japan Air Lines Company, Ltd., Tokyo, JP;
Abstract
An improvement of the attractive type electromagnet device for the magnetic levitation running vehicles. Each of the electromagnets arranged in two longitudinal rows has a U-shape-cross-section core of which opposite ends are each slanted to face downwards and a coil so wound around each leg portion of the core that the bent portions of the coil bundle are each downwardly dropped. Thus every adjacent two electromagnets can be longitudinally closely arranged at the upper sharpened edges of said slanted core ends and at the upper outer edges of said coil bundle downwardly drooped bent portions. Thus it is possible to overcome defaults of the prior arts, namely magnetic flux interruptions and so on.