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:
Jun. 02, 2015
Filed:
Jan. 09, 2013
Lee a Horton, Jefferson, MA (US);
Lee A Horton, Jefferson, MA (US);
Other;
Abstract
A tree stump excavation tool for use mounted for rotation from an excavation machine arm has first and second side plates extending from a body and a unitary plate mounted to lower ends of the side plates. The unitary plate has a generally helical profile and defines a blade with multiple, pointed teeth integrally formed along its forward edge. The teeth, disposed for cutting engagement with a substrate of soil and stump roots, are laterally spaced apart along the axis of rotation of the tool and angularly spaced in a direction of substrate ripping motion, wherein the teeth are engaged separately and in sequence for cutting the substrate. An excavation machine with a tree stump excavation tool is also described.