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:
Dec. 04, 2018
Filed:
Sep. 26, 2016
Amazon Technologies, Inc., Seattle, WA (US);
Andrew Stubbs, Waltham, MA (US);
Robert Michael Shydo, Jr., Pelham, NH (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Features are disclosed for a mobile drive unit and systems including mobile drive units that eliminate the need for dedicated lifting motors. The mobile drive unit arrangements described leverage existing motors used to drive the rolling elements (e.g., wheels) of the mobile drive unit to perform the lifting. For example, a mobile drive unit may include four locomotion motors. Because each motor can be individually controlled, the distance between front and rear (or left and right) rolling elements can be used to actuate mechanisms for lifting payloads without requiring a dedicated lifting motor.