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. 28, 1986
Filed:
Jul. 19, 1983
Hiromitsu Naka, Yashio, JP;
Kabushiki Kaisha Naka Gijutsu Kenkyusho, Tokyo, JP;
Abstract
A ceiling construction for buildings has a plurality of flanged main beams disposed in a predetermined spaced relationship to each other and bridging wall mouldings opposed and spaced from each other; a plurality of flanged cross beams connected to the main beams in a predetermined spaced relationship to each other at right angles to the main beams so as to form a ceiling framework; a ceiling wall mounted on the ceiling framework so as to form an access opening in a predetermined position; a pair of auxiliary beams; a plurality of fastening devices for the auxiliary beams; an access door; and a plurality of mounting devices for the access door. The pair of auxiliary beams each is bridged in a predetermined relationship to flanges the opposite main beams of the main beams adjacent to and spaced from each other or flanges of the opposite cross beams of the cross beams adjacent to and spaced from each other in the access opening on the ceiling wall. Further, the opposite ends of the auxiliary beams are secured to one of the main and cross beams by the fastening devices. Furthermore, the access door is positioned in the access opening, and is secured to the ceiling frame work by the use of the auxiliary beams and mounting devices.