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:
Apr. 23, 2013
Filed:
Sep. 22, 2009
Chris A. Ihrke, Hartland, MI (US);
Lyndon Bridgwater, Houston, TX (US);
Robert Platt, Houston, TX (US);
Charles W. Wampler, Ii, Birmingham, MI (US);
S. Michael Goza, League City, TX (US);
Chris A. Ihrke, Hartland, MI (US);
Lyndon Bridgwater, Houston, TX (US);
Robert Platt, Houston, TX (US);
Charles W. Wampler, II, Birmingham, MI (US);
S. Michael Goza, League City, TX (US);
GM Global Technology Operations LLC, Detroit, MI (US);
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration, Washington, DC (US);
Abstract
An improved robotic thumb for a robotic hand assembly is provided. According to one aspect of the disclosure, improved tendon routing in the robotic thumb provides control of four degrees of freedom with only five tendons. According to another aspect of the disclosure, one of the five degrees of freedom of a human thumb is replaced in the robotic thumb with a permanent twist in the shape of a phalange. According to yet another aspect of the disclosure, a position sensor includes a magnet having two portions shaped as circle segments with different center points. The magnet provides a linearized output from a Hall effect sensor.