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:
Jan. 05, 1999
Filed:
Apr. 23, 1997
Gunther Nelle, Bergen, DE;
Peter Fernsebner, Siegsdorf, DE;
Johannes Heidenhain GmbH, Traunreut, DE;
Abstract
A photoelectric position measuring encoder including a scale formed of an electrically non-conductive material and having a graduation, a scanner for photoelectrically scanning the graduation and displaceable relative to the scale in a measuring direction for generating a position-dependent signal, a slide or roller element for supporting the scanner on a scale surface, and an electrically conductive element with which the scanner-supporting scale surface region forms an electrical contact and which is connected to a reference potential.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile