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:
Dec. 26, 2000
Filed:
Jun. 04, 1998
Applicant:
Inventors:
Gunther Nelle, Bergen, DE;
Werner Jung, Traunreut, DE;
Assignee:
Dr. Johannes Heidenhain GmbH, Traunreut, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43L / ; B32B / ; B32B / ; B23K / ;
U.S. Cl.
CPC ...
33482 ; 33493 ; 33492 ; 33706 ; 33708 ; 29428 ; 156 91 ; 156291 ; 156330 ; 228212 ;
Abstract
A linear encoder including a modular scale having at least one support and a plurality of graduation carriers mounted on the support and arranged one behind another in a longitudinal direction, with the support and the graduation carriers having substantially same coefficients of thermal expansion, and with the graduation carriers having knife-shaped butt junction surfaces, the linear encoder further having a measuring head for scanning the scale.