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. 14, 2006
Filed:
Oct. 20, 2004
Volker Hoefer, Traunreut, DE;
Johann Lahr, Traunwalchen, DE;
Johann Mitterreiter, Chieming, DE;
Gerhard Scheglmann, Ruhpolding, DE;
Volker Hoefer, Traunreut, DE;
Johann Lahr, Traunwalchen, DE;
Johann Mitterreiter, Chieming, DE;
Gerhard Scheglmann, Ruhpolding, DE;
Dr. Johannes Heidenhain GmbH, Traunreut, DE;
Abstract
A positioning device includes a swiveling shaft, at one end of which an element to be positioned may be attached, a swivel drive, made up of a rotor, which is movable relative to a stator, a position measuring device, made up of two parts movable relative to each other, and a roller bearing, which includes several rolling elements. The rotor of the swivel drive and a first part of the position measuring device are connected to the shaft in a rotatably fixed manner. The rolling elements are made of a ceramic material.