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:
Mar. 20, 1990
Filed:
May. 10, 1989
Kunihiro Ogawa, Nagoya, JP;
Shigeyuki Akihama, Chofu, JP;
Kajima Corporation, , JP;
Abstract
A lightweight wall panel for a building comprises a thin, flat, flexible panel body, a plurality of thin rib portions formed on one surface of the panel body at least at peripheral edges thereof, a plurality of female threaded fasteners embedded in the rib portions, and a plurality of separate reinforcement channels secured to the panel body at least at the peripheral edges thereof by a plurality of male threaded fasteners each extending through one of the reinforcement channels and threadedly engaging the respective female fasteners. The rib portions are only sufficiently thick that the attachment devices can be embedded therein. The reinforcement channels, which can be made of a lightweight material without impairing their strength, stiffen the flexible panel, and bear most of the load, so that the entire wall panel is light in weight and has adequate strength to be used as a load-bearing structure.