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:
Mar. 23, 2004
Filed:
Dec. 26, 2002
Kazuo Chimura, Tokyo, JP;
Toshihiro Oishi, Tokyo, JP;
Mitsubishi Denki Kabushi Kaisha, Tokyo, JP;
Abstract
A projector has a first casing A (including a first part and a second part ) and a second casing B (including a third part ). The second casing B is moved between an enlarging position where the second casing B is protruded from the first casing A and a reducing position where the second casing B is retracted into the first casing A. As the second casing B moves to the enlarging position, the distance between the exhaust ports and the exhaust fan increases, so that the wind noise is restricted. As the second casing B moves to the reducing position, the exhaust ports are concealed in the first casing A, so that the entry of the dust or the like into the projector is prevented.