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:
Apr. 09, 2013
Filed:
Feb. 09, 2009
David J. Pech, Manitowoc, WI (US);
Joel D. Zick, Newton, WI (US);
Kenneth J. Porubcansky, Whitelaw, WI (US);
David J. Pech, Manitowoc, WI (US);
Joel D. Zick, Newton, WI (US);
Kenneth J. Porubcansky, Whitelaw, WI (US);
Manitowoc Crane Companies, LLC, Manitowoc, WI (US);
Abstract
A crawler has a track tensioning system. The crawler includes a crawler frame having a bottom; at least one drive tumbler supported on the frame; a track made of a plurality of connected track shoes and is wrapped around the drive tumbler so that a plurality of the shoes are in contact with the drive tumbler. The track tensioning system, mounted to the frame, includes a roller engaging the inside surface of the track; and a roller positioning structure attached to the frame that can raise the roller relative to the bottom of the frame to thereby increase the tension of the track.