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. 12, 2021
Filed:
Dec. 20, 2017
Segway, Inc., Bedford, NH (US);
Michael J. Casey, Bedford, NH (US);
Kimberley A. St. Louis, Bedford, NH (US);
Nicholas A. DeAngelis, Bedford, NH (US);
Benjamin C. Minerd, Bedford, NH (US);
Robert M. Bowman, Bedford, NH (US);
Jason A. Swift, Bedford, NH (US);
Segway, Inc., Bedford, NH (US);
Abstract
A method of operating a payload-carrying vehicle having two laterally disposed wheels positioned along a central axis is described. The method includes measuring a force applied by a user to the hand truck, where the measured force comprising a direction and a magnitude, and providing torque to each wheel to cause each wheel to rotate in a respective direction as a function of the measured magnitude and direction. The amount of torque provided to each wheel in response to the force from the user is such that the magnitude of measured force applied by the user is not greater than a predetermined threshold value.