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:
Sep. 11, 1984
Filed:
Oct. 21, 1981
Applicant:
Inventors:
Yoichiro Murakami, Kunitachi, JP;
Tatsuo Sato, Tokyo, JP;
Assignee:
Taisei Kensetsu Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
5222 / ; 52250 ; 52260 ;
Abstract
A structure employing a tapered slab, which is formed of a two-dimensional continuous array of upside-down rectangular pyramids with their apexes placed at column centers and their bottom faces placed along an upper surface of a floor slab, is improved in that prestressing steel members are disposed under tension between the top portions of the respective columns and said prestressing steel members are anchored to the columns at the outer ends.