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:
Nov. 13, 2007
Filed:
Nov. 20, 2003
Applicant:
Akira Fukushima, Komatsu, JP;
Inventor:
Akira Fukushima, Komatsu, JP;
Assignees:
Komatsu Ltd., Tokyo, JP;
Hitachi Construction Macinery Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A crawler frame includes a center frame and right and left track frames disposed at right and left sides of the center frame so as to extend in a back and forth direction, wherein legs for connecting a central frame section of the center frame to the track frames are formed from cast steel in order that washing can be easily done by reducing the amount of mud to be adhered to and deposited on the legs and in order that easy manufacture may be possible.