Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – Access portal in interior partition; e.g. – into office or...
Patent
1983-07-19
1986-10-28
Raduazo, Henry E.
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
Access portal in interior partition; e.g., into office or...
52213, 52484, 52204, E04B 552
Patent
active
046190864
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.
REFERENCES:
patent: 2822584 (1958-02-01), Urbain
patent: 2913571 (1959-11-01), Smith
patent: 3121259 (1964-02-01), Versen
patent: 3397499 (1968-08-01), Ward
patent: 3743826 (1973-07-01), Halfaker
patent: 4103948 (1978-08-01), Naka
patent: 4439972 (1979-02-01), Naka
Kabushiki Kaisha Naka Gijutsu Kenkyusho
Raduazo Henry E.
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