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. 02, 2002
Filed:
Apr. 25, 2000
Takanobu Kuribayashi, Tokyo, JP;
Yasushi Yamamoto, Tokyo, JP;
Wataru Nakatsuka, Tokyo, JP;
Hiroshi Miyanokoshi, Jushiyama-mura, JP;
Sanwa Shutter Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An opening and closing device for an architectural rolling door is provided in which various parts of the device are assembled into a cylindrical-shaped casing with good work efficiency and without looseness. After a casing ( ) is divided into upper and lower semi-cylindrical parts ( ) and various parts, such as an electric motor ( ), of the device are assembled into the lower semi-cylindrical part ( ), the upper semi-cylindrical part( ) is slidingly fitted into and assembled to the lower part ( ) and flange portions ( ) on the upper and the lower parts ( ) in this state are clamped to each other and fixed in a state in which the casing ( ) is made small in diameter.