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. 21, 2006
Filed:
Jul. 23, 2004
Applicant:
Masayuki Okoshi, Matsumoto, JP;
Inventor:
Masayuki Okoshi, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A suction-side duct () is interposed between a light source device () and an exhaust fan () and includes a first suction hole (A) for drawing in a heated air heated by the light source device () and a discharge hole (B) for discharging the indrawn heated air toward the exhaust fan (). The first suction hole (A) and the discharge hole (B) are located not to interfere with each other on a plane seen from a suction direction or a discharge direction of the heated air.