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:
Jul. 09, 1985
Filed:
Feb. 24, 1983
Applicant:
Inventors:
Hajime Numakami, Chigasaki, JP;
Hideyuki Kuroda, Kamakura, JP;
Assignee:
Zeon Kasei Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
E05F / ; E06B / ;
U.S. Cl.
CPC ...
49 82 ; 49 90 ; 49 92 ; 49275 ;
Abstract
An opening and closing type louver device comprising a louver in which a number of blades are arranged in a row in a required spaced relation on rotating shafts within a frame. Each blade is opened and closed by a driving mechanism while maintaining their parallel relation.