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:
May. 17, 2011
Filed:
Sep. 19, 2007
Ottmar Roth, Gründau, DE;
Hartwin Weber, Hanau, DE;
Lutz Hinrich, Freigericht, DE;
Jens Diehl, Langenselbold, DE;
Ottmar Roth, Gründau, DE;
Hartwin Weber, Hanau, DE;
Lutz Hinrich, Freigericht, DE;
Jens Diehl, Langenselbold, DE;
Vacuumschmelze GmbH & Co. KG, Hanau, DE;
Abstract
A seamless, rotationally symmetrical hollow blank formed by a non-cutting operation from a deformable permanently magnetic alloy is provided, said alloy consisting essentially of 5.0 to 20.0 percent by weight cobalt, 20.0 to 35.0 percent by weight chromium, for the remainder iron and impurities caused by melting and/or by chance. The seamless hollow body is suitable in particular for use in hysteresis clutches, hysteresis brakes, and position measuring devices. Furthermore, non-cutting shaping processes for producing the seamless rotationally symmetrical hollow body are provided, with roller spinning being preferred.