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:
Nov. 07, 1995
Filed:
Sep. 21, 1993
Applicant:
Inventors:
Keishi Shimizu, Hyogo, JP;
Kanzi Shimizu, Hyogo, JP;
Masanobu Mitsumachi, Saitama, JP;
Masato Nakajima, Tokyo, JP;
Tetsushi Ishigami, Kanagawa, JP;
Yoshitake Kusamichi, Hyogo, JP;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
454345 ; 454341 ;
Abstract
A device for changing air flow from a room has a casing with three openings arranged in a T-shaped disposition. The first and second openings are arranged in a L-shape with respect to a chamber in the casing, and the third opening connects the chamber to an exhaust passage. A flap is provided, with a side end rotatably supported at a corner between the first opening and the second opening such that the flap can be moved between positions for selectively closing the first or second opening by operation of a mechanism for rotating the flap.