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:
Aug. 09, 2022
Filed:
May. 13, 2020
Amazon Technologies, Inc., Seattle, WA (US);
Dragan Pajevic, Arlington, MA (US);
Allan Katz, Londonderry, NH (US);
Mark Anthony Begley, West Barnstable, MA (US);
Timothy Joseph Jordan, Andover, MA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Method and apparatus for identifying a relative rotation between a rotary unit and a base unit in a drive unit, receiving a command that changes the relative rotation when the command is executed by the drive unit, determining that rotating at least one of the base unit or the rotary unit in a first direction in response to the command results in the relative rotation exceeding a maximum rotation value, and rotating at least one of the base unit or the rotary unit in a second direction opposite the first direction while executing the command. In one example, the drive unit may include cables that transfer power and control signals from the base unit to the rotary unit. Determining whether executing the command results in the relative rotation exceeding the maximum rotation value can ensure the cables are not damaged.