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.

Date of Patent:
Aug. 02, 1994

Filed:

Jun. 30, 1992
Applicant:
Inventors:

Makoto Kanai, Saitama, JP;

Kouichi Okabe, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355215 ; 355 30 ;
Abstract

An exhaust device 10, which is arranged on the upper surface of the main unit frame 11 of an electronic copying machine, a printer, or the like, is constructed with a louver 15 having a section in an approximately spherical shape, with an air exhaust fan 18 arranged in the space under the louver 15. Moreover, the louver 15 mentioned above is provided with a large number of slits 16 formed along its arc-shaped structure, and, with these slits 16, the exhaust device can secure an exhaust port even when another object is placed on the louver 15 mentioned above because the slits 16 will not be obstructed completely even in such a case.


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