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. 26, 1978
Filed:
Aug. 04, 1976
Jean-Luc Giovachini, Paris, FR;
Dante Marc Vendramini, Asnieres, Hauts de Seine, FR;
Institute de Recherche des Transports, Arcueil, FR;
Other;
Abstract
The invention relates to a composite wheel capable of withstanding large centrifugal forces, including at least two elements made of materials with different yield strengths, one of said elements being peripheral and the other element connecting said peripheral element to the wheel hub, characterized in that said element connecting the peripheral element to the hub comprises two conical flanges having their concave sides facing each other, means being provided to vary the angle subtended by the flanges whereby to obtain, as necessary, either a limitation of the stresses exerted on the material forming the flanges (the diameter of the wheel remaining constant and the angle between flanges widening), or an accompaniment by said flanges of the expansion undergone by the peripheral material (the wheel diameter increasing and the inter-flange angle widening or narrowing). A composite wheel according to this invention may be used with advantage but by no means exclusively as a test wheel for an eddy-current machine, a linear motor, a brake, or magnets for providing magnetic lift. Alternatively, it may be used as a high energy storage wheel for a variety of vehicles.