Patent · US Active

Zero horizontal reaction force excavator

US9027265B1 · kind B1 · utility

4Cited by

7References

29Claims

0Family size

Assignee

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

Robert Mueller · Cocoa Beach, US
Andrew Nick · Pecan Park, US
Jason Schuler · Merritt Island, US
Jonathan Smith · Merritt Island, US

Key dates

Filing date	May 17, 2013
Grant date	May 12, 2015
Priority date	—
Expiry date	Jul 30, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02F3/961
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An excavator includes a mobile chassis with a first bucket drum and a second bucket drum coupled thereto. The first bucket drum and second bucket drum are coupled to the chassis for positioning thereof on the surface at opposing ends of the chassis. Each first scoop on the first bucket drum is a mirror image of one second scoop on the second bucket drum when (i) the first bucket drum and second bucket drum are on the surface adjacent opposing ends of the chassis, and (ii) the first bucket drum is rotated in one direction and the second bucket drum is simultaneously rotated in an opposing direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.