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:
Aug. 14, 2007

Filed:

Dec. 21, 2004
Applicants:

Christopher A. Huck, Wadsworth, OH (US);

David L. Kauffman, Shreve, OH (US);

Inventors:

Christopher A. Huck, Wadsworth, OH (US);

David L. Kauffman, Shreve, OH (US);

Assignee:

Astec Industries, Inc., Chattanooga, TN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 31/10 (2006.01); E21C 29/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An auger boring machine having a drive mechanism for moving the machine along a desired direction of travel includes a drive motor having a shaft and a pinion mounted on the shaft. A method for manufacturing a track for such a boring machine includes providing a track base rail adapted to support the auger boring machine and arranging the base rail along the desired direction of travel of the boring machine. The method also includes cutting a gear rack which includes a plurality of gear teeth along one side that are adapted to mesh with the pinion of the drive mechanism, and a flexibility notch on the side opposite the gear teeth. The gear rack is attached to the base rail with the gear teeth oriented so as to engage with the pinion of the drive mechanism.


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