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:
Jan. 01, 2019
Filed:
Sep. 12, 2014
Applicant:
Caterpillar Sarl, Geneva, CH;
Inventors:
Yoshihisa Kohzu, Tokyo, JP;
Akito Nakai, Tokyo, JP;
Assignee:
Caterpillar SARL, Geneva, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/18 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2217 (2013.01); E02F 9/18 (2013.01); E02F 9/2264 (2013.01);
Abstract
Counterweight device in which an accumulator is disposed inside a counterweight, the work machine connecting the accumulator to piping at the machine body side and capable of moving a machine body or work device even though the counterweight is not attached to the body. A counterweight is fixed to a mount base at the rear end part of a swinging frame, an accumulator installed inside the counterweight by means of a temporary placing support structure. The temporary placing support structure can be temporarily placed on and attached to the end plate at the swinging frame side before attaching the counterweight.