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:
Jun. 16, 2009
Filed:
Jul. 09, 2007
Applicants:
Paul Ferrari, Carlsbad, CA (US);
Dongmei Hong, San Diego, CA (US);
Inventors:
Paul Ferrari, Carlsbad, CA (US);
Dongmei Hong, San Diego, CA (US);
Assignee:
Hexagon Metrology AB, Nacka Strand, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 5/008 (2006.01); G01B 5/012 (2006.01);
U.S. Cl.
CPC ...
Abstract
An articulating joint for a coordinate measurement machine can include an improved optical encoder. The optical encoder can have an encoder hub and a read head that are rotatable with respect to each other based on movement of the articulating joint about an axis of rotation of the joint. The encoder hub has a read surface. The read surface can be an outer surface of a generally cylindrical segment. The read head can be positioned such that a read direction defined by the read surface is generally perpendicular to the axis of rotation of the articulating joint.