US 3654996 A
A ceiling panel and a ceiling constructed of such panels. The panels are made of a powder or finely divided fiber like material supported on a material which will be melted by heat. When the sheet of support material is melted away, the powder will fall and put out the fire without damage to adjacent materials, which is inherent in water fire fighting.
Description (OCR text may contain errors)
United States Patent Naglowsky 1541 CEILING CONSTRUCTION 2,772,742 12/1956 Sprankle ..52/309X 3,418,766 12/1968 Jackson ..52/3llX 51 Apr.1l, 1972 2/1944 Doyle 169/2 Segil Crocker.....
Cholin et a1. ....169/26 Primary Examiner-M. Henson Wood, .lr. Assistant Examiner-Michael Y. Mar Att0rneyCharles L. Lovercheck [5 7] ABSTRACT A ceiling panel and a ceiling constructed of such panels. The panels are made of a powder or finely divided fiber like material supported on a material which will be melted by heat. When the sheet of support material is melted away, the powder will fall and put out the fire without damage to adjacent materials, which is inherent in water fire fighting.
1 Claim, 6 Drawing Figures PATENTEDAPR H 1912 3. 654,996
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CEILING CONSTRUCTION STATEMENT OF INVENTION This invention relates to ceilings and, more particularly, to ceiling panels having finely divided fire extinguishing material supported therein.
STATEMENT OF PRIOR ART U.S. Pat. No. 3,040,815 shows a meltable bag of powder material which will fall down to extinguish a fire; however; this bag of material is not in a neat and practical arrangement for appearance and for utility.
OBJECTS OF THE INVENTION It is an object of the invention to provide a fire-proof ceil- Another object of the invention is to provide a fire extinguisher structure in combination with a ceiling panel.
Yet another object of the invention is to provide an improved ceiling panel which is simple in construction, economical to manufacture, and simple and efficient to use and which will extinguish fires which may start in the space below it.
DESCRIPTION OF THE DRAWINGS DETAILED DESCRIPTION OF THE DRAWINGS Now with more particular reference to the drawings, FIGS. 1, 2, and 3 show a ceiling supported on a frame made up of longitudinal frame members 12 and lateral members 16 which are supported together to enclose rectangular spaces or strips.
between walls. The frame members may be in the form of invetted T's so that the edges of the panels are supported on the flanges of the T forming supports in a well known drop ceiling type of arrangement. The frames may be suspended from an upper framework and the end members supported around the walls of the room.
The panels are constructed of a fire resistant backing member 13 with downwardly extending members 18 which form rectangular pockets in which the finely divided powderlike material 15 is disposed. A backing layer of insulation indicated at 14 may be supported on the fire resistant member 13 or the fire resistant material itself may be made of some insulation like material, for example, fiberglass. The powder may be finely divided asbestos or it could be bicarbonate of soda or any other fire extinguishing material. It could also be a foaming material of one of the well known varieties of fire extinguishing foam. A layer of meltable material indicated at 20 rnay be glued to the partition members 18 to form spaces or pockets in which the finely divided material is disposed.
In the embodiment of the invention shown in FIGS. 4, 5, and 6, a backing material of a fire resistant type indicated at 113 is formed with downwardly extending partition members 118 to which the meltable material 120 is attached by gluing or the like. The meltable material may be of vinyl sheet or it may be polyethylene or any of the well known low melting point thermoplastic materials. It could also be a paper that would be consumed by a fire. The powder material is disposed in the pockets so that it will fall out when the cover is melted or destroyed.
What is claimed is: 1. A ceiling comprising longitudinal and lateral frame members formed of inverted Ts,
means supporting said frame members above a floor forming a ceiling,
a plurality of ceiling panels on said frame members supporting said ceiling panels,
said ceiling panels comprising a backing member made of fire resistant fiberglass material,
a sheet of meltable vinyl material supported in planar relation by said frame members defining a space therebetween below said fire resistant material,
a powder disposed between said backing member and said meltable material,
a partition member at each side of said powder,
said partition members being sandwiched between said backing member and said sheet of meltable material defining a frame of sufficient thickness for maintaining said backing member in a spaced, flat, and parallel relationship with said sheet of meltable material and forming a compartment therebetween,
and a finely divided material contained in said compartment and supported on said meltable material whereby a fire in the room below said ceiling will melt said meltable material and said finely divided material will fall onto said fire, extinguishing said fire.