US20060048301A1 - Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers - Google Patents

Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers Download PDF

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Publication number
US20060048301A1
US20060048301A1 US10/934,971 US93497104A US2006048301A1 US 20060048301 A1 US20060048301 A1 US 20060048301A1 US 93497104 A US93497104 A US 93497104A US 2006048301 A1 US2006048301 A1 US 2006048301A1
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United States
Prior art keywords
layer
fire
mattress
resistant
adjacent
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Abandoned
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US10/934,971
Inventor
Alvin Klancnik
Steven Wolf
Kenneth Oliver
Robert Sabalaskey
Leonardo Echeverria
Robert Malin
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Serta Inc
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Serta Inc
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Application filed by Serta Inc filed Critical Serta Inc
Priority to US10/934,971 priority Critical patent/US20060048301A1/en
Priority to CA002578689A priority patent/CA2578689A1/en
Priority to EP05792321A priority patent/EP1784098A4/en
Priority to PCT/US2005/030807 priority patent/WO2006028801A2/en
Priority to JP2007530259A priority patent/JP2008513050A/en
Priority to AU2005282851A priority patent/AU2005282851A1/en
Assigned to SERTA INTERNATIONAL reassignment SERTA INTERNATIONAL ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ECHEVERRIA, LEONARDO, KLANCNIK, ALVIN R., MALIN, ROBERT E., SABALASKEY, ROBERT J.
Publication of US20060048301A1 publication Critical patent/US20060048301A1/en
Priority to ZA200701831A priority patent/ZA200701831B/en
Assigned to SERTA, INC. reassignment SERTA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SERTA INTERNATIONAL
Priority to US13/198,631 priority patent/US20120102656A1/en
Priority to US13/431,558 priority patent/US8429776B2/en
Priority to US13/431,458 priority patent/US8353072B2/en
Priority to US13/734,782 priority patent/US9538857B2/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C31/00Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/001Fireproof means

Definitions

  • This invention pertains to mattresses and, in particular, to a fire-retardant mattress and a method for manufacturing the same.
  • a pair of gas burners was designed to mimic the thermal impact of burning bedclothes. One burner was placed so as to impinge on the top of a mattress surface while the second impinges nearby on the mattress side. The flame generated by the side burner was allowed to burn for 50 seconds while the flame from the top burner burned for 70 seconds. The fires generated by these burners were monitored and it was observed that a typical mattress reached flash-over value in approximately three minutes.
  • the first of these is the person in the room in which the fire originates and is intimate with the fire. This person would normally be someone on the mattress.
  • the second person is in the room in which the fire originates, but is not intimate with the fire. This could be someone sitting in a chair in the bedroom in which the mattress catches fire or a child who started the fire and is hiding behind a dresser.
  • the third person is someone who is not in the room in which the fire originates and is also not intimate with the fire. This would include someone located in another room in the house in which the mattress catches fire.
  • the invention is directed to a fire-resistant mattress having material compartmentalized between fire-resistant layers that significantly reduce fire growth of the mattress.
  • the fire-resistant mattress is comprised of an inner support compartment, a first layer of fire-resistant material adjacent to at least one side of the inner support compartment, at least one layer of material adjacent to the first layer of fire-resistant material, and a second layer of fire-resistant material adjacent to the at least one layer, the second layer of fire-resistant material being distal to the first layer of fire-resistant material.
  • the inner support compartment has six sides, a first layer of fire-retardant material is adjacent to each side of the inner support compartment, at least one layer of material is adjacent to the first layer of fire-retardant material on each side of the inner support compartment, and a second layer of fire-retardant material is adjacent to the at least one layer of material on each side of the inner support compartment distal to the first layer of fire-retardant material.
  • the mattress is comprised of an inner support compartment, a fire-resistant insulation layer having a first side and a second side, with the first side being adjacent to at least one side of the inner support compartment, a first layer of material being adjacent to the second side of the fire-resistant layer, a quilt layer having a first side and a second side, with the first side of the quilt layer being adjacent to the first layer of material distal from the fire-resistant layer, a second layer of material being adjacent to the second side of the quilt layer, a second fire-resistant upholstery layer adjacent to the second layer of material and distal from the quilt layer, and an outer ticking layer adjacent to the second fire-resistant layer.
  • the invention also includes a method for manufacturing a fire-resistant mattress.
  • FIG. 1 is a perspective, cut away view of a portion of a mattress constructed in accordance with the prior art.
  • FIG. 2 is a perspective, cut away view of a portion of one embodiment of a mattress made in accordance with the principles of the present invention.
  • FIG. 3 is a perspective, cut away view showing a top portion of a mattress constructed in accordance with the principles of the invention.
  • FIG. 4 is a sectional view of one embodiment of a single-sided mattress made in accordance with the principles of the invention.
  • FIG. 5 is a sectional view of one embodiment of a double-sided mattress made in accordance with the principles of the invention showing the perimeter of the mattress protected with combustible material compartmentalized between two layers of fire-resistant material.
  • FIG. 6 is a sectional view of a single-sided embodiment of a mattress made in accordance with the principles of the invention showing the inner support compartment filled with foam.
  • FIG. 7 is a sectional view of a double-sided embodiment of a mattress made in accordance with the principles of the invention showing the inner support compartment filled with foam and the perimeter two layers of fire-resistant material compartmentalizing the combustible material.
  • FIG. 8 is a perspective, cut away view showing a top portion of a mattress constructed in accordance with the invention, the mattress having a plurality of combustible layers of material between the two layers of fire-resistant material.
  • FIG. 9 is a sectional view of a pillow-top mattress.
  • FIGS. 2-7 show the invention which is directed to a fire-resistant mattress 10 that uses layers of fire-resistant material 14 , 18 to compartmentalize material 16 within the mattress 10 so as to delay and possibly prevent the mattress 10 from becoming fully engulfed in flames as the result of the mattress 10 catching on fire.
  • conventional fire-resistant or fire-retardant mattresses 100 include a single fire-resistant layer of material 17 .
  • This fire-resistant layer 17 is located near, if not directly beneath, the outer layer 19 of the mattress 100 .
  • the flame burns through the combustible outer layer of quilt or ticking 19 .
  • the fire-resistant layer 17 works most of the time, should the flame breach (i.e., burn through) the layer 17 , there is no additional protection or barrier to prevent the fire from rapidly spreading through the rest of the mattress 100 , thereby resulting in a high rate of combustion of the mattress 100 .
  • the outer layer 19 may itself be fire resistant. This eliminates the need for a second fire resistant layer such as 17 in FIG. 1 .
  • flashover is that point in time where the articles burning in a room generate enough energy to cause all room ingredients to burn essentially simultaneously. This point is normally accepted to be about 1,000 kW in a regular sized bedroom.
  • fire resistant and fire retardant are used interchangeably.
  • FIG. 2 shows one embodiment of the invention in which the fire-resistant mattress 10 is comprised of an inner support compartment 12 , a first layer of fire-resistant material 14 adjacent to at least one side 13 of the inner support compartment 12 , at least one layer of material 16 adjacent to the first layer of fire-resistant material 14 , and a second layer of fire-resistant material 18 adjacent to the at least one layer 16 , the second layer of fire-resistant material 18 being distal to the first layer of fire-resistant material 14 .
  • This use of fire-resistant layers of material 14 , 18 on each side of the layer 16 creates a compartment 20 that helps to contain the fire from spreading throughout the mattress 10 should one of the fire-resistant layers 14 , 18 be breached.
  • the at least one layer of material 16 that is compartmentalized between the fire-resistant layers 14 , 18 can be a combustible material as well as a cushioning material. Furthermore, the layer of material 16 may be combustible material that has been treated with a fire-resistant chemical.
  • the compartmentalization of the material 16 results in fire-resistant integrity for the mattress 10 in much the same way that watertight doors provide watertight integrity in the event of flooding in a ship. That is, by containing the flooding within a specific compartment, the complete flooding of the ship is prevented, thereby increasing the chances of saving the entire ship.
  • fire is contained within the compartment 20 between the fire-resistant layers 14 , 18 even in the event of the fire breaching one of the layers.
  • the use of a first fire-resistant layer of material 14 located further inboard of the outer layer 22 of the inventive mattress 10 and closer to the inner support compartment 12 than the second fire-resistant layer 18 provides an additional layer of fire protection, thereby slowing the advance of the fire and allowing additional time for an individual to escape the room or building in which the mattress is located.
  • FIGS. 2, 3 , 4 , 6 and 8 show one embodiment of the inventive mattress 10 in which at least one layer of material 16 is located between a first and second layer of fire-resistant material 14 , 18 that are positioned on one side 13 of the inner support compartment 12 .
  • This type of mattress 10 is known as a single-sided mattress, as the top side of the inner support compartment 12 is built up with thicker upholstery material than the bottom or second side.
  • the side of inner support compartment 12 opposite of the sleeping side may be covered with one or more upholstery layers; however, it is not designed to be a sleeping surface.
  • additional layers of materials 23 such as foam, quilt, and upholstery topper layers may be included between the layers of fire-resistant material 14 , 18 , as shown in FIG. 4 , without departing from the scope and spirit of the invention.
  • the flame When in use, should a fire start on the top of the mattress 10 shown in FIGS. 2-9 , the flame will readily penetrate the outer layer of quilt or ticking 22 , as well as any other sacrificial combustible material (e.g., 25 in FIGS. 4 and 6 ). Once the flame reaches the second layer of fire-resistant material 18 , however, its rate of penetration will be slowed, if not completely stopped.
  • the layers of fire-resistant material 14 , 18 used in the mattress 10 can be manufactured as a barrier sheet or a high loft batt.
  • the layers 14 , 18 may be made of blends of synthetic or natural fibers.
  • Such fire-resistant layers 14 , 18 are manufactured by several companies including, but not limited to, Basofil Fibers, LLC, Leggett & Platt, and Jones Fiber.
  • the fire will then spread through the layer(s) of material 16 immediately beneath the second fire-resistant layer 18 .
  • the fire will continue to advance in a controlled manner until it reaches the first layer of fire-resistant material 14 where it will once again be slowed, thereby delaying the involvement of the entire mattress 10 .
  • This additional barrier of protection resulting from the first (i.e., inner) layer of fire-resistant material 14 helps contain the fire within the compartment 20 bordered by the two layers of fire-resistant material 14 , 18 .
  • This compartmentalization of the fire slows or prevents the mattress 10 from being completely engulfed by fire, thereby increasing the length of time an occupant in the room or building housing the mattress has to flee to safety.
  • the extra protection offered by the first (i.e., inner) layer of fire-resistant material 14 helps reduce the amount of heat generated by the fire, thereby allowing the mattress to burn for 30 minutes without exceeding 200 kW.
  • the inner support compartment 12 of the inventive mattress may be filled with any suitable material known in the art, including springs, air, water, foam or fiber.
  • FIGS. 2-5 , 8 and 9 show an inner support compartment 12 filled with springs 24
  • FIGS. 6 and 7 show the compartment 12 filled with foam, fiber or other material 26 .
  • a layer of material 23 may also be located adjacent to the second layer of fire-resistant material 18 either distal or proximal to the at least one layer of cushioning material 16 , as is shown in FIGS. 4-7 .
  • the cushioning material 16 may also be made of any suitable material, including foam and/or fiber.
  • At least one upholstery layer 30 is adjacent to the at least one side 13 of the inner support compartment 12 and the first layer of fire-resistant material 14 is adjacent to the at least one upholstery layer 30 , but distal to the at least one side 13 of the inner support compartment 12 .
  • the inner support compartment 12 may also have a perimeter 11 that is surrounded by a layer of fire-retardant material 38 , as shown in FIGS. 5 and 7 .
  • the inner support compartment 12 has a second side 15 opposite the at least one side 13 .
  • a third layer of fire-resistant material 32 is located adjacent to the second side 15 of the inner support compartment 12
  • at least one layer of material 34 is adjacent to the third layer of fire-resistant material 32
  • a fourth layer of fire-resistant material 36 is adjacent to the at least one layer of material 34 distal from the third layer of fire-resistant material 32 .
  • This type of mattress 10 is known as a double-sided mattress as cushioning material is located on both sides of the inner support compartment 12 .
  • the compartmentalization of the at least one layer of material 34 on the second side 15 of the inner support compartment 12 works in the same way as does the compartmentalization on the first side 13 . That is, the third and fourth layers of fire-resistant material 32 , 36 act to contain any fire in the area between them, much in the same manner that two watertight doors contain flooding within a particular compartment on a ship.
  • the at least one layer of material 34 located between the third and fourth layers of fire-resistant material 32 , 36 may be made of a combustible material and/or a cushioning material including, but not limited to, foam.
  • the layer 34 may also be made of a combustible material that has been treated with a fire-resistant chemical.
  • FIG. 8 shows still another embodiment of the invention wherein the mattress 10 has an inner support compartment 12 , a fire-resistant insulation layer 14 having a first side and a second side positioned so that the first side is adjacent to at least one side of the inner support compartment 12 , a first layer of material 16 is adjacent to the second side of the first fire-resistant layer 14 , a quilt backing layer 42 , having a first side and a second side, is positioned so that the first side of the quilt backing layer 42 is adjacent to the first layer of material 16 , yet distal from the first fire-resistant layer 14 , a second layer of material 44 is adjacent to the second side of the quilt backing layer 42 , a second fire-resistant insulation layer 18 is located adjacent to the second layer of material 44 and distal from the quilt layer 42 , and an outer layer 46 , such as a ticking layer, is adjacent to the second fire-resistant layer 18 .
  • FIG. 9 shows still another embodiment of the invention wherein the mattress 10 includes at least one additional layer of material 48 secured to a top layer 50 of the mattress 10 .
  • the at least one additional layer of combustible material 48 is joined to the top layer 50 inboard of the perimeter of the mattress 10 . This creates a void or “smile” 52 between the top layer 50 of the mattress 10 and the at least one additional layer 48 .
  • An additional layer of fire-resistant material 28 extends along the length of the mattress 10 adjacent to the at least one additional layer 48 .
  • At least one layer of material 16 is located next to the additional layer of fire-resistant material 28 , proximal to the inner support compartment 12 .
  • a first layer of fire-resistant material 14 is located inboard of the at least one layer of combustible material 16 between the combustible material 16 and the inner support compartment 12 , while a second layer of fire-resistant material 18 is located between the two layers of combustible material 16 .
  • the invention also includes a method for manufacturing a fire-resistant mattress.
  • This method of manufacturing involves the steps of: (a) providing an inner support compartment; (b) placing a first layer of fire-resistant material on a first side of the inner support compartment; (c) positioning at least one layer of combustible material adjacent to the first fire-resistant layer of material; (d) aligning a second layer of fire-resistant material on the at least one layer of combustible material distal to the first layer of fire-resistant material; and (e) placing a second layer of sacrificial combustible material outboard of the second layer of fire-resistant material distal to the inner support compartment.
  • These materials may be independent or contained in a quilt.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Bedding Items (AREA)

Abstract

A fire-retardant mattress that compartmentalizes bedding material between layers of fire-resistant material. The mattress includes an inner support compartment, a first layer of fire-resistant material adjacent to at least one side of the inner support compartment, at least one layer of cushioning material adjacent to the first layer of fire-resistant material, and a second layer of fire-resistant material adjacent to the at least one cushioning layer, the second layer of fire-resistant material distal to the first layer of fire-resistant material.

Description

    FIELD OF THE INVENTION
  • This invention pertains to mattresses and, in particular, to a fire-retardant mattress and a method for manufacturing the same.
  • BACKGROUND OF THE INVENTION
  • Since at least the late 1960s, mattress manufacturers have been concerned with fires in mattresses that have been associated with bedroom fires. During this time, some 30,000 bedroom fires were attributed to mattresses as most of the fires were determined to be caused by cigarette ignition of the mattress resulting from people smoking in bed. An additional 22,000 fires were attributed to open flame ignition of the mattress. Given the large number of fires attributed to cigarette smoking, federal standards were introduced in an attempt to limit the spread of fires that originated on a mattress.
  • In the late 1980s, open flame ignition surpassed cigarette ignition as the main cause of mattress fires. Later it was determined, through several studies, that the primary source of bedroom fires was the burning of bedclothes located on top of the mattress. Furthermore, it was found that the majority of these fires were caused by children playing with ignition sources such as lighters, matches and candles which then ignited the top-of-the-bed accessories such as sheets, blankets and pillows.
  • As a result of these surveys, studies were conducted to improve the understanding of mattress fires. These studies led to the development of a test apparatus that could accurately and consistently simulate the burning bedclothes ignition source.
  • The tests involved placing a mattress/foundation on top of a steel twin-sized bed frame which, in turn, rested on a cement fiberboard surface that formed the bottom of a catch pan. A pair of gas burners was designed to mimic the thermal impact of burning bedclothes. One burner was placed so as to impinge on the top of a mattress surface while the second impinges nearby on the mattress side. The flame generated by the side burner was allowed to burn for 50 seconds while the flame from the top burner burned for 70 seconds. The fires generated by these burners were monitored and it was observed that a typical mattress reached flash-over value in approximately three minutes.
  • As a result of these studies, California established a regulation (Technical Bulletin 603) that required that a fire on a mattress could not exceed 25 mega joules of heat in the first 10 minutes of the fire, or a peak rate of heat release of 200 kW over a 30-minute period. A problem associated with reaching this criterion is that it is difficult to place a fire-retardant barrier on the outside of the mattress as the treatment that allows a barrier to be fire retardant makes the mattress surface hard and uncomfortable to the touch. For this reason, the outer layer of a mattress is typically some type of quilt or ticking material that burns fairly easily and is considered sacrificial material.
  • In residential bedroom fires, three different types of people are at risk from the fire. The first of these is the person in the room in which the fire originates and is intimate with the fire. This person would normally be someone on the mattress. The second person is in the room in which the fire originates, but is not intimate with the fire. This could be someone sitting in a chair in the bedroom in which the mattress catches fire or a child who started the fire and is hiding behind a dresser. The third person is someone who is not in the room in which the fire originates and is also not intimate with the fire. This would include someone located in another room in the house in which the mattress catches fire.
  • The regulation promulgated in Technical Bulletin 603 provides a valuable 30-minute window for the people at risk to detect and escape a fire. Furthermore, the low-peak-heat-release limit will substantially delay the growth and intensity of a fire. Combined, these requirements significantly reduce the risk of rapid flashover to other parts of the residence and thus substantially expand the opportunity for consumers to escape a bedroom fire.
  • By reducing the size and growth rate of a fire, it is possible to reduce bed fire casualties by one-half to two-thirds. This is because extra time to escape the residence is provided, particularly for those individuals who are not intimate with the fire. Furthermore, additional time is also provided for a person on the mattress to escape with only isolated burns, if any.
  • In practice, mattress manufacturers follow either or both of two approaches to fire risk reduction: (a) reduce the likelihood of sustained ignition and (b) mitigate the consequences of an ignition. To help achieve these goals, typical fire-resistant mattresses have a fire-resistant barrier located near the outer layer of the mattress, with the outer layer being made of a quilt or ticking material. This fire-resistant barrier works most of the time; however, should the barrier fail, there is no way of preventing the fire from spreading rapidly through the mattress to the inner support compartment, thereby causing a flashover and engulfing the entire mattress in flames. For this reason, the ability to slow the spread of fire that has breached the first fire-resistant barrier would be an important improvement in the art.
  • BRIEF SUMMARY OF THE INVENTION
  • The invention is directed to a fire-resistant mattress having material compartmentalized between fire-resistant layers that significantly reduce fire growth of the mattress. In one embodiment, the fire-resistant mattress is comprised of an inner support compartment, a first layer of fire-resistant material adjacent to at least one side of the inner support compartment, at least one layer of material adjacent to the first layer of fire-resistant material, and a second layer of fire-resistant material adjacent to the at least one layer, the second layer of fire-resistant material being distal to the first layer of fire-resistant material.
  • In still another embodiment of the invention, the inner support compartment has six sides, a first layer of fire-retardant material is adjacent to each side of the inner support compartment, at least one layer of material is adjacent to the first layer of fire-retardant material on each side of the inner support compartment, and a second layer of fire-retardant material is adjacent to the at least one layer of material on each side of the inner support compartment distal to the first layer of fire-retardant material.
  • In yet another embodiment of the invention, the mattress is comprised of an inner support compartment, a fire-resistant insulation layer having a first side and a second side, with the first side being adjacent to at least one side of the inner support compartment, a first layer of material being adjacent to the second side of the fire-resistant layer, a quilt layer having a first side and a second side, with the first side of the quilt layer being adjacent to the first layer of material distal from the fire-resistant layer, a second layer of material being adjacent to the second side of the quilt layer, a second fire-resistant upholstery layer adjacent to the second layer of material and distal from the quilt layer, and an outer ticking layer adjacent to the second fire-resistant layer.
  • The invention also includes a method for manufacturing a fire-resistant mattress.
  • The fire-resistant advantages of the invention will be apparent from the description of the invention provided herein.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective, cut away view of a portion of a mattress constructed in accordance with the prior art.
  • FIG. 2 is a perspective, cut away view of a portion of one embodiment of a mattress made in accordance with the principles of the present invention.
  • FIG. 3 is a perspective, cut away view showing a top portion of a mattress constructed in accordance with the principles of the invention.
  • FIG. 4 is a sectional view of one embodiment of a single-sided mattress made in accordance with the principles of the invention.
  • FIG. 5 is a sectional view of one embodiment of a double-sided mattress made in accordance with the principles of the invention showing the perimeter of the mattress protected with combustible material compartmentalized between two layers of fire-resistant material.
  • FIG. 6 is a sectional view of a single-sided embodiment of a mattress made in accordance with the principles of the invention showing the inner support compartment filled with foam.
  • FIG. 7 is a sectional view of a double-sided embodiment of a mattress made in accordance with the principles of the invention showing the inner support compartment filled with foam and the perimeter two layers of fire-resistant material compartmentalizing the combustible material.
  • FIG. 8 is a perspective, cut away view showing a top portion of a mattress constructed in accordance with the invention, the mattress having a plurality of combustible layers of material between the two layers of fire-resistant material.
  • FIG. 9 is a sectional view of a pillow-top mattress.
  • DETAILED DESCRIPTION OF THE INVENTION
  • FIGS. 2-7 show the invention which is directed to a fire-resistant mattress 10 that uses layers of fire- resistant material 14, 18 to compartmentalize material 16 within the mattress 10 so as to delay and possibly prevent the mattress 10 from becoming fully engulfed in flames as the result of the mattress 10 catching on fire.
  • As shown in FIG. 1, conventional fire-resistant or fire-retardant mattresses 100 include a single fire-resistant layer of material 17. This fire-resistant layer 17 is located near, if not directly beneath, the outer layer 19 of the mattress 100. In the event of a mattress fire caused, for example, by the bedding (not shown) on top of the mattress 100 catching on fire, the flame burns through the combustible outer layer of quilt or ticking 19. Although the fire-resistant layer 17 works most of the time, should the flame breach (i.e., burn through) the layer 17, there is no additional protection or barrier to prevent the fire from rapidly spreading through the rest of the mattress 100, thereby resulting in a high rate of combustion of the mattress 100. In still another embodiment of the prior art the outer layer 19 may itself be fire resistant. This eliminates the need for a second fire resistant layer such as 17 in FIG. 1.
  • For purposes of this invention, flashover is that point in time where the articles burning in a room generate enough energy to cause all room ingredients to burn essentially simultaneously. This point is normally accepted to be about 1,000 kW in a regular sized bedroom. Furthermore, for the purposes of this invention, the terms fire resistant and fire retardant are used interchangeably.
  • FIG. 2 shows one embodiment of the invention in which the fire-resistant mattress 10 is comprised of an inner support compartment 12, a first layer of fire-resistant material 14 adjacent to at least one side 13 of the inner support compartment 12, at least one layer of material 16 adjacent to the first layer of fire-resistant material 14, and a second layer of fire-resistant material 18 adjacent to the at least one layer 16, the second layer of fire-resistant material 18 being distal to the first layer of fire-resistant material 14. This use of fire-resistant layers of material 14, 18 on each side of the layer 16 creates a compartment 20 that helps to contain the fire from spreading throughout the mattress 10 should one of the fire- resistant layers 14, 18 be breached.
  • The at least one layer of material 16 that is compartmentalized between the fire- resistant layers 14, 18 can be a combustible material as well as a cushioning material. Furthermore, the layer of material 16 may be combustible material that has been treated with a fire-resistant chemical.
  • The compartmentalization of the material 16 results in fire-resistant integrity for the mattress 10 in much the same way that watertight doors provide watertight integrity in the event of flooding in a ship. That is, by containing the flooding within a specific compartment, the complete flooding of the ship is prevented, thereby increasing the chances of saving the entire ship. In the inventive mattress 10, fire is contained within the compartment 20 between the fire- resistant layers 14, 18 even in the event of the fire breaching one of the layers.
  • As shown in FIG. 2, the use of a first fire-resistant layer of material 14 located further inboard of the outer layer 22 of the inventive mattress 10 and closer to the inner support compartment 12 than the second fire-resistant layer 18, provides an additional layer of fire protection, thereby slowing the advance of the fire and allowing additional time for an individual to escape the room or building in which the mattress is located.
  • FIGS. 2, 3, 4, 6 and 8 show one embodiment of the inventive mattress 10 in which at least one layer of material 16 is located between a first and second layer of fire- resistant material 14, 18 that are positioned on one side 13 of the inner support compartment 12. This type of mattress 10 is known as a single-sided mattress, as the top side of the inner support compartment 12 is built up with thicker upholstery material than the bottom or second side. In such a single-sided mattress, the side of inner support compartment 12 opposite of the sleeping side may be covered with one or more upholstery layers; however, it is not designed to be a sleeping surface. Of course, additional layers of materials 23, such as foam, quilt, and upholstery topper layers may be included between the layers of fire- resistant material 14, 18, as shown in FIG. 4, without departing from the scope and spirit of the invention.
  • When in use, should a fire start on the top of the mattress 10 shown in FIGS. 2-9, the flame will readily penetrate the outer layer of quilt or ticking 22, as well as any other sacrificial combustible material (e.g., 25 in FIGS. 4 and 6). Once the flame reaches the second layer of fire-resistant material 18, however, its rate of penetration will be slowed, if not completely stopped.
  • The layers of fire- resistant material 14, 18 used in the mattress 10 can be manufactured as a barrier sheet or a high loft batt. The layers 14, 18 may be made of blends of synthetic or natural fibers. Such fire- resistant layers 14, 18 are manufactured by several companies including, but not limited to, Basofil Fibers, LLC, Leggett & Platt, and Jones Fiber.
  • Should the second layer of fire-resistant material 18 be breached as a result of a tear in the fire-resistant layer, a flaw in the material, or any other reason, the fire will then spread through the layer(s) of material 16 immediately beneath the second fire-resistant layer 18. The fire will continue to advance in a controlled manner until it reaches the first layer of fire-resistant material 14 where it will once again be slowed, thereby delaying the involvement of the entire mattress 10.
  • This additional barrier of protection resulting from the first (i.e., inner) layer of fire-resistant material 14 helps contain the fire within the compartment 20 bordered by the two layers of fire- resistant material 14, 18. This compartmentalization of the fire slows or prevents the mattress 10 from being completely engulfed by fire, thereby increasing the length of time an occupant in the room or building housing the mattress has to flee to safety.
  • Although not 100% foolproof, the extra protection offered by the first (i.e., inner) layer of fire-resistant material 14 helps reduce the amount of heat generated by the fire, thereby allowing the mattress to burn for 30 minutes without exceeding 200 kW.
  • The inner support compartment 12 of the inventive mattress may be filled with any suitable material known in the art, including springs, air, water, foam or fiber. FIGS. 2-5, 8 and 9 show an inner support compartment 12 filled with springs 24, while FIGS. 6 and 7 show the compartment 12 filled with foam, fiber or other material 26. A layer of material 23 may also be located adjacent to the second layer of fire-resistant material 18 either distal or proximal to the at least one layer of cushioning material 16, as is shown in FIGS. 4-7. The cushioning material 16 may also be made of any suitable material, including foam and/or fiber.
  • In another embodiment of the invention, as shown in FIG. 3, at least one upholstery layer 30 is adjacent to the at least one side 13 of the inner support compartment 12 and the first layer of fire-resistant material 14 is adjacent to the at least one upholstery layer 30, but distal to the at least one side 13 of the inner support compartment 12. This allows for one or more layers of material 30 to be located between the inner support compartment 12 and the first layer of fire-resistant material 14. The inner support compartment 12 may also have a perimeter 11 that is surrounded by a layer of fire-retardant material 38, as shown in FIGS. 5 and 7.
  • In still another embodiment of the invention, as shown in FIGS. 5 and 7, the inner support compartment 12 has a second side 15 opposite the at least one side 13. A third layer of fire-resistant material 32 is located adjacent to the second side 15 of the inner support compartment 12, at least one layer of material 34 is adjacent to the third layer of fire-resistant material 32, and a fourth layer of fire-resistant material 36 is adjacent to the at least one layer of material 34 distal from the third layer of fire-resistant material 32. This type of mattress 10 is known as a double-sided mattress as cushioning material is located on both sides of the inner support compartment 12.
  • The compartmentalization of the at least one layer of material 34 on the second side 15 of the inner support compartment 12 works in the same way as does the compartmentalization on the first side 13. That is, the third and fourth layers of fire- resistant material 32, 36 act to contain any fire in the area between them, much in the same manner that two watertight doors contain flooding within a particular compartment on a ship. As with the single-sided mattress, the at least one layer of material 34 located between the third and fourth layers of fire- resistant material 32, 36 may be made of a combustible material and/or a cushioning material including, but not limited to, foam. The layer 34 may also be made of a combustible material that has been treated with a fire-resistant chemical.
  • FIG. 8 shows still another embodiment of the invention wherein the mattress 10 has an inner support compartment 12, a fire-resistant insulation layer 14 having a first side and a second side positioned so that the first side is adjacent to at least one side of the inner support compartment 12, a first layer of material 16 is adjacent to the second side of the first fire-resistant layer 14, a quilt backing layer 42, having a first side and a second side, is positioned so that the first side of the quilt backing layer 42 is adjacent to the first layer of material 16, yet distal from the first fire-resistant layer 14, a second layer of material 44 is adjacent to the second side of the quilt backing layer 42, a second fire-resistant insulation layer 18 is located adjacent to the second layer of material 44 and distal from the quilt layer 42, and an outer layer 46, such as a ticking layer, is adjacent to the second fire-resistant layer 18. Again, this arrangement of building up the mattress using a first and second layer of fire- resistant material 14, 18 to establish a compartment 20 in which bedding material 16, 42, 44 is located helps reduce the fire growth of the mattress.
  • FIG. 9 shows still another embodiment of the invention wherein the mattress 10 includes at least one additional layer of material 48 secured to a top layer 50 of the mattress 10. In this embodiment, known as a pillow-top or Euro-top mattress, the at least one additional layer of combustible material 48 is joined to the top layer 50 inboard of the perimeter of the mattress 10. This creates a void or “smile” 52 between the top layer 50 of the mattress 10 and the at least one additional layer 48. An additional layer of fire-resistant material 28 extends along the length of the mattress 10 adjacent to the at least one additional layer 48. At least one layer of material 16 is located next to the additional layer of fire-resistant material 28, proximal to the inner support compartment 12. A first layer of fire-resistant material 14 is located inboard of the at least one layer of combustible material 16 between the combustible material 16 and the inner support compartment 12, while a second layer of fire-resistant material 18 is located between the two layers of combustible material 16.
  • The invention also includes a method for manufacturing a fire-resistant mattress. This method of manufacturing involves the steps of: (a) providing an inner support compartment; (b) placing a first layer of fire-resistant material on a first side of the inner support compartment; (c) positioning at least one layer of combustible material adjacent to the first fire-resistant layer of material; (d) aligning a second layer of fire-resistant material on the at least one layer of combustible material distal to the first layer of fire-resistant material; and (e) placing a second layer of sacrificial combustible material outboard of the second layer of fire-resistant material distal to the inner support compartment. These materials may be independent or contained in a quilt.
  • All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.
  • The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential of the practice of the invention.
  • Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. It should be understood that the illustrated embodiments are exemplary only, and should not be taken as limiting the scope of the invention.

Claims (26)

1. A fire-retardant mattress comprised of:
an inner support compartment;
a first layer of fire-resistant material adjacent to at least one side of the inner support compartment;
at least one layer of material adjacent to the first layer of fire-resistant material; and
a second layer of fire-resistant material adjacent to the at least one layer of material, the second layer of fire-resistant material distal to the first layer of fire-resistant material.
2. The fire-retardant mattress of claim 1, wherein the at least one layer of material adjacent to the first layer of fire-resistant material is combustible.
3. The fire-retardant mattress of claim 1, wherein the at least one layer of material adjacent to the first layer of fire-resistant material is a cushioning material.
4. The fire-retardant mattress of claim 3, wherein:
the at least one layer of cushioning material adjacent to the first layer of fire-resistant material is made of foam.
5. The fire-retardant mattress of claim 1, wherein the inner support compartment is filled with a material selected from a group comprised of springs, air water, fiber or foam.
6. The fire-retardant mattress of claim 1, wherein a second layer of material is located adjacent to the second layer of fire-resistant material distal to the at least one layer of material.
7. The fire-retardant mattress of claim 6, wherein the second layer of material is a cushioning material.
8. The fire-retardant mattress of claim 7, wherein the second layer of cushioning material is ticking.
9. The fire-retardant mattress of claim 7, wherein the second layer of cushioning material is made of foam.
10. The fire-retardant mattress of claim 1, wherein:
at least one upholstery topper layer is adjacent to the at least one side of the inner support compartment; and
the first layer of fire-resistant material is adjacent to at least one upholstery topper layer, distal to the at least one side of the inner support compartment.
11. The fire-retardant mattress of claim 1, wherein:
the inner support compartment has a perimeter; and
a layer of fire-retardant material surrounds the perimeter.
12. The fire-retardant mattress of claim 1, wherein:
the mattress has an outer edge; and
a pillow-top layer attached to the second layer of fire-resistant material, inboard of the outer edge of the mattress.
13. The fire-retardant mattress of claim 1, wherein:
the inner support compartment has a second side opposite the at least one side;
a third layer of fire-resistant material is located adjacent to the second side of the inner support compartment;
at least one layer of material is adjacent to the third layer of fire-resistant material; and
a fourth layer of fire-resistant material is adjacent to the second layer of material distal from the third layer of fire-resistant material.
14. The fire-retardant mattress of claim 13, wherein the at least one layer of material is a cushioning material.
15. The fire-retardant mattress of claim 1, wherein:
the mattress includes at least one additional layer of combustible material secured to a top layer of the mattress;
the at least one additional layer of combustible material is joined to the top layer inboard of a perimeter of the mattress;
a second layer of fire-resistant material extends along a length of the mattress adjacent to where the at least one additional layer joins the top layer of the mattress;
at least one layer of combustible material is located adjacent to the second layer of fire-resistant material, proximal to the inner support compartment;
a first layer of fire-resistant material is located inboard of the at least one layer of combustible material between the combustible material and the inner support compartment.
16. A fire-retardant mattress comprised of:
an inner support compartment having six sides;
a first layer of fire-retardant material adjacent to each side of the inner support compartment;
at least one layer of material adjacent to the first layer of fire-retardant material on each side of the inner support compartment; and
a second layer of fire-retardant material adjacent to the at least one layer of material on each side of the inner support compartment distal to the first layer of fire-retardant material.
17. The fire-retardant mattress of claim 16, wherein the at least one layer of material is a cushioning material.
18. The fire-retardant mattress of claim 17, wherein the cushioning material is foam.
19. The fire-retardant mattress of claim 16, wherein:
at least one upholstery topper layer is adjacent to each side of the inner support compartment; and
the first layer of fire-retardant material is adjacent the at least one upholstery topper layer distal from the side of the inner support compartment.
20. A fire-retardant mattress comprised of:
an inner support compartment;
a fire-resistant insulation layer having a first side and a second side, the first side adjacent to at least one side of the inner support compartment;
a first layer of material adjacent to the second side of the fire-resistant layer;
a quilt layer having a first side and a second side, the first side of the quilt layer adjacent to the first layer of material distal from the fire-resistant layer;
a second layer of material adjacent to the second side of the quilt layer;
a second fire-resistant insulation layer adjacent to the second layer of material and distal from the quilt layer; and
an outer ticking layer adjacent to the second fire-resistant layer.
21. The fire-retardant mattress of claim 20, wherein the first and second layer of material is a cushioning material.
22. The fire-retardant mattress of claim 21, wherein the cushioning material is foam.
23. A method of manufacturing a fire-resistant mattress, the method comprising the steps of:
providing an inner support compartment;
placing a first layer of fire-resistant material on a first side of the inner support compartment;
positioning at least one layer of material adjacent to the first fire-resistant layer of material;
aligning a second layer of fire-resistant material on the at least one layer of combustible material distal to the first layer of fire-resistant material; and
placing a second layer of material outboard of the second layer of fire-resistant material distal to the inner support compartment.
24. The method of claim 23, wherein the at least one layer of material and the second layer of material are combustible.
25. The method of claim 23, wherein the at least one layer of material and the second layer of material are cushioning material.
26. The method of claim 25, wherein the cushioning material is foam.
US10/934,971 2004-09-03 2004-09-03 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers Abandoned US20060048301A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US10/934,971 US20060048301A1 (en) 2004-09-03 2004-09-03 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
CA002578689A CA2578689A1 (en) 2004-09-03 2005-08-31 Fire-resistant mattress having compustible material compartmentalized between fire-resistant layers
EP05792321A EP1784098A4 (en) 2004-09-03 2005-08-31 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
PCT/US2005/030807 WO2006028801A2 (en) 2004-09-03 2005-08-31 Fire-resistant mattress
JP2007530259A JP2008513050A (en) 2004-09-03 2005-08-31 Refractory mattress with flammable material partitioned between refractory layers
AU2005282851A AU2005282851A1 (en) 2004-09-03 2005-08-31 Fire-resistant mattress
ZA200701831A ZA200701831B (en) 2004-09-03 2007-03-01 Fire-resistant mattress
US13/198,631 US20120102656A1 (en) 2004-09-03 2011-08-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/431,558 US8429776B2 (en) 2004-09-03 2012-03-27 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/431,458 US8353072B2 (en) 2004-09-03 2012-03-27 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/734,782 US9538857B2 (en) 2004-09-03 2013-01-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/934,971 US20060048301A1 (en) 2004-09-03 2004-09-03 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers

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US13/198,631 Continuation US20120102656A1 (en) 2004-09-03 2011-08-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers

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US20060048301A1 true US20060048301A1 (en) 2006-03-09

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US10/934,971 Abandoned US20060048301A1 (en) 2004-09-03 2004-09-03 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/198,631 Abandoned US20120102656A1 (en) 2004-09-03 2011-08-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/431,458 Expired - Lifetime US8353072B2 (en) 2004-09-03 2012-03-27 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/734,782 Active 2027-02-17 US9538857B2 (en) 2004-09-03 2013-01-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers

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US13/198,631 Abandoned US20120102656A1 (en) 2004-09-03 2011-08-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/431,458 Expired - Lifetime US8353072B2 (en) 2004-09-03 2012-03-27 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US13/734,782 Active 2027-02-17 US9538857B2 (en) 2004-09-03 2013-01-04 Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers

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US (4) US20060048301A1 (en)
EP (1) EP1784098A4 (en)
JP (1) JP2008513050A (en)
AU (1) AU2005282851A1 (en)
CA (1) CA2578689A1 (en)
WO (1) WO2006028801A2 (en)
ZA (1) ZA200701831B (en)

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US20070202294A1 (en) * 2000-03-13 2007-08-30 L&P Property Management Company Protective fire retardant component for a composite furniture system
US20080107148A1 (en) * 2003-11-04 2008-05-08 L&P Property Management Company Thermal properties testing apparatus and methods
US20090126119A1 (en) * 2000-03-13 2009-05-21 L&P Property Management Company, A Delaware Corporation Fire resistant insulator pad
US20110061784A1 (en) * 2006-06-21 2011-03-17 Dreamwell, Ltd. Mattresses having flame resistant panel
US20120036644A1 (en) * 2010-08-13 2012-02-16 Dreamwell, Ltd. Fire Resistant Flange for Removable Top Panels for Use in Mattress Assemblies
US20120180224A1 (en) * 2011-01-14 2012-07-19 Demoss Larry K Mattress constructions with densified fiber components
US20120255128A1 (en) * 2011-04-07 2012-10-11 Sytz Ronald M Enhanced Knit Fabric Fire Barrier for Mattresses
US8353072B2 (en) 2004-09-03 2013-01-15 Serta, Inc. Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US8429776B2 (en) 2004-09-03 2013-04-30 Serta, Inc. Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
US8745795B2 (en) 2012-01-09 2014-06-10 Serta, Inc. Bedding component with fire-resistant laminate
US9538855B2 (en) 2013-01-25 2017-01-10 Serta, Inc. Component with multiple layers
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US8353072B2 (en) 2004-09-03 2013-01-15 Serta, Inc. Fire-resistant mattress having combustible material compartmentalized between fire-resistant layers
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US20120255128A1 (en) * 2011-04-07 2012-10-11 Sytz Ronald M Enhanced Knit Fabric Fire Barrier for Mattresses
US8745795B2 (en) 2012-01-09 2014-06-10 Serta, Inc. Bedding component with fire-resistant laminate
US9538855B2 (en) 2013-01-25 2017-01-10 Serta, Inc. Component with multiple layers
US10470583B2 (en) 2013-01-25 2019-11-12 Serta, Inc. Component with multiple layers
US10874222B2 (en) 2017-09-22 2020-12-29 Ashley Furniture Industries, Inc. Ready to assemble furniture

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EP1784098A4 (en) 2012-01-04
US8353072B2 (en) 2013-01-15
WO2006028801A3 (en) 2007-04-19
US20120102656A1 (en) 2012-05-03
EP1784098A2 (en) 2007-05-16
JP2008513050A (en) 2008-05-01
ZA200701831B (en) 2009-04-29
US9538857B2 (en) 2017-01-10
US20120180223A1 (en) 2012-07-19
CA2578689A1 (en) 2006-03-16
US20130133139A1 (en) 2013-05-30
WO2006028801A2 (en) 2006-03-16
AU2005282851A2 (en) 2006-03-16
AU2005282851A1 (en) 2006-03-16

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