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. 24, 2004
Filed:
Sep. 17, 2002
Osamu Takashima, Tokyo, JP;
Kazuyoshi Matsumoto, Tokyo, JP;
Junichi Murano, Sayama, JP;
Katsunori Shoji, Chigasaki, JP;
Kiyoshi Tsukamura, Atsugi, JP;
Toshiyuki Uchida, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A duct fan unit, which is a simple structure that can be disassembled by an easy operation and the manufacture cost thereof can be decreased. The duct fan unit comprises a duct and a fan. The duct, allows air to pass through is constructed by engaging two duct constructing members together. The fan is installed inside the duct. A guide portion having a rib shape is set on only one of the duct constructing members such that the fan can be installed easily. A resilient protrusion is set on the other duct constructing member such that the fan can be resiliently pressed for securing the fan in position. Therefore, by simply latching the connecting plate of one duct constructing member with the connecting hole of the other duct constructing member the two duct constructing members are fixed to each other.