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:
Jul. 10, 2012
Filed:
Apr. 09, 2008
Makoto Matsushita, Inashiki-gun, JP;
Masao Nakamura, Tsukuba, JP;
Kazuhisa Tamura, Ishioka, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A counterweight () is attached to the rear side of a revolving frame (), and an engine () is mounted in a transverse direction in front of the counterweight (). A heat exchanger () is located on the left side of the engine (), and a left-hand side door () is located on the left side of the heat exchanger (). An air cleaner () is accommodated in an air cleaner chamber () which is provided in a space enclosed by the counterweight, left-hand side door and heat exchanger. In this state, a casing () of the air cleaner has an opening portion (A) to permit insertion and extraction of a filter element (). Thus, at the time of a maintenance work for the air cleaner, one can draw out the filter element from the opening portion of the casing simply by opening the left-hand side door.