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. 03, 1999
Filed:
Sep. 09, 1997
Tetsuro Nagashima, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The invention provides an air cooling duct and a cooling apparatus which can effect ventilation and cooling with certainty while suppressing noise. The cooling air duct is provided on a wall of a housing, in which a heat source is accommodated, and inducts external air into the housing or vents air in the housing to the outside of the housing in order to cool the inside of the housing. The cooling air duct defines an air path for communicating the inside and the outside of the housing with each other and further defines an expansion chamber formed on the air path. The cooling apparatus includes the cooling air duct. The cooling air duct and the cooling apparatus can be used principally to cool the inside of a housing of an electronic apparatus such as a computer or a communication apparatus.