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.

Date of Patent:
Jul. 08, 2025

Filed:

Aug. 07, 2023
Applicant:

Ghost Robotics Corporation, Philadelphia, PA (US);

Inventors:

Avik De, Philadelphia, PA (US);

Jeffrey Duperret, Philadelphia, PA (US);

Assignee:

Ghost Robotics Corp., Philadelphia, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25J 13/08 (2006.01); B25J 9/16 (2006.01); B62D 57/032 (2006.01);
U.S. Cl.
CPC ...
B25J 9/1653 (2013.01); B25J 13/08 (2013.01);
Abstract

The present invention pertains to a method for a quadruped robot to navigate through granular media, such as deep sand and for providing improvements in the walking performance over various types of granular media. In particular, the present invention proposes reducing the assumed coefficient of friction about the ground, impacting the ground harder than nominal in the vertical direction at touchdown, and forcing a toe lift off into swing if a knee joint extends beyond a threshold stance to help increase the robustness of a quadruped robot's locomotive abilities on challenging terrains and provide an improvement in the field of biomechanics and robotic navigation.


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