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. 30, 2014
Filed:
Apr. 17, 2012
Applicants:
Alexander Frank, Traunstein, DE;
Marc Oliver Tiemann, Salzburg, AT;
Martin Heumann, Traunstein, DE;
Inventors:
Assignee:
Dr. Johannes Heidenhain GmbH, Traunreut, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/347 (2006.01); B23K 20/04 (2006.01); B23P 17/04 (2006.01); G01D 5/20 (2006.01);
U.S. Cl.
CPC ...
G01D 5/20 (2013.01); G01D 5/2013 (2013.01);
Abstract
A method a scale having an inductively scannable graduation, the scale including a sequence of graduation elements disposed in a measuring direction and a layer stack including a succession of metal layers. The succession of metal layers includes a ferromagnetic metal carrier layer and a graduation layer that forms the sequence of graduation elements. The carrier layer is disposed between the graduation layer and a metal substrate, and the metal substrate is dimensioned to definitively determine mechanical properties of the layer stack.