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:
Feb. 24, 2015
Filed:
Nov. 10, 2011
Masao Nakamura, Tsukuba, JP;
Masao Nakamura, Tsukuba, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A revolving frame is provided with left and right vertical plates installed upright on a bottom plate, and a front plate arranged on a front side of the bottom plate and connecting the left and right vertical plates to each other. A left reinforcing plate is provided at a corner where the left vertical plate and the front plate cross each other, and a right reinforcing plate is provided at a corner where the right vertical plate and the front plate cross each other. As a result, the corner portion where the left vertical plate and the front plate cross each other is reinforced by the left reinforcing plate while a left side closed space (LS) is formed, and the corner portion where the right vertical plate and the front plate cross each other is reinforced by the right reinforcing plate while a right side closed space (RS) is formed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile