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Publication numberUS3654996 A
Publication typeGrant
Publication dateApr 11, 1972
Filing dateSep 12, 1969
Priority dateSep 12, 1969
Publication numberUS 3654996 A, US 3654996A, US-A-3654996, US3654996 A, US3654996A
InventorsMichael Naglowsky
Original AssigneeMichael Naglowsky
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ceiling construction
US 3654996 A
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.
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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

r mmmmmm 1/ Arrow/m.

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.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2340370 *Feb 2, 1942Feb 1, 1944Doyle Robert AFire extinguishing blanket
US2718290 *Mar 16, 1953Sep 20, 1955Lcon J SegilSafety drop-out means for ceiling panels
US2772742 *Jul 12, 1954Dec 4, 1956Plax CorpCeiling construction
US2801427 *Mar 8, 1954Aug 6, 1957Ben GustanFireproof pad
US2917116 *Feb 17, 1958Dec 15, 1959Wyant Gerald WFire retarding device
US3040815 *Jun 3, 1960Jun 26, 1962Pambello Samuel MichaelFire extinguishing apparatus
US3418766 *Feb 3, 1965Dec 31, 1968Mccall Bros & CoSuspended ceiling system
US3486563 *Jan 12, 1968Dec 30, 1969Roger R CholinFire extinguishing blanket
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3972289 *Apr 4, 1975Aug 3, 1976The United States Of America As Represented By The Secretary Of The NavyTemperature-sensitive disarming element
US4232742 *Jun 1, 1978Nov 11, 1980Telefonaktiebolaget L M EricssonCable of rupturable capsules which contain a halon, fire extinguishing substance
US4251579 *May 30, 1978Feb 17, 1981Ciba-Geigy CorporationWith a honeycomb core of cells containing a fireextinguishing fluid
US4384617 *Jan 19, 1981May 24, 1983Mueller Anton CChimney fire prevention device and tar trap
US5441114 *Oct 25, 1994Aug 15, 1995Spectronix Ltd.Container of oxidizer and reducing agent which are activated to yield solid particles which mix with pressurized extinguishing gas released from attached cylinder
US5490566 *Aug 9, 1993Feb 13, 1996Firemelt International, Inc.Fire extinguishing panels
US5492179 *Oct 25, 1994Feb 20, 1996Spectronix Ltd.System for extinguishing a fire in a volume for delivery from a distance
US5492180 *Oct 25, 1994Feb 20, 1996Spectronix Ltd.Painting wall surfaces with an ignitable solid-fuel composition which generates a fire-extinguishing particulate aerosol
US5588493 *Oct 25, 1994Dec 31, 1996Spectronix Ltd.Includes two reactants that when activated react to create fine solid particulate products that inhibit the chain reactions of fire flame
US5610359 *Oct 25, 1994Mar 11, 1997Spector; YechielMethod of generating non-toxic smoke
US5619824 *Jun 12, 1995Apr 15, 1997Steelcase, Inc.Heat releaseable ceiling support
US7385480Jun 24, 2004Jun 10, 2008Fitzpatrick Peter JFire fighting apparatus
US20110100651 *Oct 29, 2010May 5, 2011Dickens Sr James DanielCeiling fire extinguishing system with lost air filtration - the ceiling firefighter™
US20130014962 *Jul 14, 2011Jan 17, 2013Hanna Rinoud KFire retardant strip to contain brush fires
DE3814751A1 *Apr 30, 1988Nov 9, 1989Hasso Von BluecherSystem for reducing the risk of fire spreading
WO1994019060A1 *Jan 27, 1994Sep 1, 1994Spectronix LtdFire extinguishing methods and systems
WO2005000414A1 *Jun 24, 2004Jan 6, 2005Peter J FitzpatrickA fire fighting apparatus
Classifications
U.S. Classification169/57, 428/117, 169/42, 169/26
International ClassificationE04B9/04, A62C99/00
Cooperative ClassificationE04B9/0464, E04B9/0435, A62C99/009, E04B9/0428
European ClassificationE04B9/04D, E04B9/04J, E04B9/04E, A62C99/00F