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:
Aug. 10, 2004
Filed:
Mar. 06, 2003
Applicant:
Inventors:
Nobuya Nakagawa, Aichi, JP;
Hajime Izumi, Takasago, JP;
Tetsuo Tominaga, Takasago, JP;
Toshihisa Kondo, Aichi, JP;
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60H 1/26 ;
U.S. Cl.
CPC ...
B60H 1/26 ;
Abstract
A vehicle air-conditioning duct has an oblong cross-sectional configuration. The air-conditioning duct has a top wall , a bottom wall and side walls enclosing an interior space and at least one constriction formed by a projection protruding from at least one of the top wall and the bottom wall into the air-conditioning duct so as to connect the top wall with the bottom wall . The constriction continuously extends in an air flow direction so that cross-sectional areas of the constriction are constant in the air flow direction.