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:
Dec. 31, 2013
Filed:
Mar. 11, 2011
Shougo Kimura, Ritto, JP;
Hajime Ishii, Higashiomi, JP;
Hiroshi Tabeta, Konan, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A suction duct () provided in a floor member () comprises an internal air duct portion () connected to the internal air inlet port (A), an external air duct portion () connected to an external air inlet port (E), and a common duct portion () for connecting the internal air duct portion () and the external air duct portion () to a blower fanB suction side of an air conditioner unit (). The suction duct is constructed to form a hollow column () having a hollow closed section structure with the internal air duct portion and the common duct portion formed integrally in the upper and lower directions. Therefore, the hollow column formed of the hollow closed section structure can increase strength of the floor member as a strong column while circulating internal air between the internal air inlet port and the air conditioner unit.