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:
Aug. 02, 2016
Filed:
May. 15, 2014
Applicant:
Dr. Johannes Heidenhain Gmbh, Traunreut, DE;
Inventor:
Hermann Meyer, Schneizlreuth, DE;
Assignee:
DR. JOHANNES HEIDENHAIN GMBH, Traunreut, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/30 (2006.01); G01D 5/08 (2006.01); G01D 3/028 (2006.01); G01D 5/347 (2006.01); F16C 33/74 (2006.01); F16C 33/76 (2006.01); F16C 19/00 (2006.01);
U.S. Cl.
CPC ...
G01D 5/08 (2013.01); F16C 33/745 (2013.01); F16C 33/761 (2013.01); G01B 7/30 (2013.01); G01D 3/028 (2013.01); G01D 5/34738 (2013.01); F16C 19/00 (2013.01); F16C 2361/65 (2013.01);
Abstract
An angular-position measuring device includes a shaft rotatable relative to a body about an axis extending in a z-direction. A measuring standard having an end face is fastened on the shaft in rotatably fixed manner. The body includes a scanning device for scanning the measuring standard. Both the roller bearing and a sealing unit are provided on the side of the measuring standard facing the end face relative to the z-direction, The sealing unit includes rings that are rotatable relative to each other and are separated from each other by a gap, the gap being filled at least partially with a fluid.