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.

Date of Patent:
Dec. 02, 1997

Filed:

May. 17, 1996
Applicant:
Inventors:

John Tibbe Bouwers, Pella, IA (US);

Thomas Alan Eggers, Yankton, SD (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27L / ; B02C / ; B02C / ;
U.S. Cl.
CPC ...
144174 ; 1441621 ; 144373 ; 144172 ; 241 92 ; 24110174 ; 241277 ; 2412781 ;
Abstract

A drum chipper for chipping wood material includes a chipping drum having a blade mounted at an opening formed through a circumferential surface of the drum. The drum includes an internal conical surface positioned for a chip to flow radially inwardly from the blade towards the conical surface and outwardly through an axial face of the drum.


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