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:
Oct. 22, 1991
Filed:
Oct. 10, 1989
Joe Masuyama, Tokyo, JP;
Koji Mikuriya, Tokyo, JP;
Tsuneo Takai, Tokyo, JP;
Shinji Chiba, Tokyo, JP;
Kiyoshi Hotta, Tokyo, JP;
Yoshinori Hamano, Tokyo, JP;
Katsuyuki Onishi, Tokyo, JP;
Koji Funahashi, Tokyo, JP;
Yuji Takahashi, Tokyo, JP;
Junichi Sugawara, Tokyo, JP;
Tobishima Corporation, Tokyo, JP;
Abstract
A domed structure having a retractable roof comprises an inside field area, a ringed structure vertically provided around said field area, two tracks laid out on the top of said ringed structure and two movable semi-vaults travelling separately on said two annular tracks, which are put one over the other when the roof is opened and are located in opposite relation to each other when the roof is formed, thereby providing a domed roof as a whole. The annular tracks laid out on the top of said ringed structure may have a gradient rising with respect to the direction of solar radiation.