US20020062625A1 - Access floor panel and system - Google Patents
Access floor panel and system Download PDFInfo
- Publication number
- US20020062625A1 US20020062625A1 US10/007,503 US750301A US2002062625A1 US 20020062625 A1 US20020062625 A1 US 20020062625A1 US 750301 A US750301 A US 750301A US 2002062625 A1 US2002062625 A1 US 2002062625A1
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- United States
- Prior art keywords
- core
- floor panel
- access floor
- pan
- plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02405—Floor panels
- E04F15/02417—Floor panels made of box-like elements
- E04F15/02423—Floor panels made of box-like elements filled with core material
- E04F15/02429—Floor panels made of box-like elements filled with core material the core material hardening after application
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02447—Supporting structures
- E04F15/02458—Framework supporting the panels
Definitions
- the present invention relates to access floor systems, and more particularly to access floor panels used in access floor systems.
- Access floor systems provide a functional floor that is elevated above a lower floor.
- the elevated floor is composed of removable, rectangular floor panels that are mounted on an understructure affixed to the lower floor.
- These floor systems are used to cover ducting, power cables, and various other plumbing and electrical services that run underneath, above the lower floor, while still allowing technicians easy access to them for service, by removing the floor panels.
- the present invention relates to an access floor panel for use in an access floor system.
- the panel comprises a bottom pan and a core.
- the bottom pan includes a plate, and the core is secured to the plate.
- the core is made from a mineralized fibrous material blended with cement.
- the core may be made specifically from DURISOLTM.
- the bottom pan may further include a sidewall that projects upwards from the plate and surrounds the core.
- the floor panel may further comprise a top pan which is secured to the core.
- the present invention relates to a method of making an access floor panel, the method comprising:
- the core material comprising a mixture of a mineralized fibrous aggregate and a cement binder
- the present invention relates to a method of making an access floor panel, the method comprising:
- a pre-cured core that is adapted to fit with a bottom pan, the core comprising a mixture of a mineralized fibrous aggregate and a cement binder;
- the present invention relates to an access flooring system made with the floor panels described above and pedestals for supporting the floor panels above a lower floor.
- the pedestals have a base, a support post and a panel support piece for supportion a portion of at least one of the floor panels.
- FIG. 1 is an isometric view of an access floor panel in accordance with a first preferred embodiment of the present invention
- FIG. 2 is a sectional side view of the floor panel in FIG. 1;
- FIG. 3 is a sectional side view of a floor panel in FIG. 1 with optional exterior reinforcing bars;
- FIG. 4 is a sectional side view of a portion of the floor panel in FIG. 1, with an optional key and groove mating system;
- FIG. 5 is an isometric view of an access flooring system showing a plurality of pedestals for supporting a floor panel in accordance with the present invention.
- FIG. 6 is an isometric view of an access flooring system showing a plurality of pedestals with stringers for supporting a floor panel in accordance with the present invention.
- FIGS. 1 and 2 illustrate an access floor panel 10 made in accordance with a first preferred embodiment of the present invention, and which will be used for the purposes of describing the operational aspects of the invention.
- Floor panel 10 is for use in access floor systems, and may have any suitable shape therefor.
- floor panel 10 may have a generally rectangular shape.
- floor panel 10 may be square or may be oblong (ie. it may have four equal-length sides or four sides wherein one pair of opposing sides is longer than the other pair of opposing sides).
- having a rectangular shape means, for the purposes of this disclosure, that the floor panel 10 has a rectangular shape when viewed by persons who are walking on it. In the embodiment shown in FIG. 1, the floor panel 10 is shown as square shaped.
- Floor panel 10 includes a bottom pan 12 , a core 14 (shown in FIG. 2) and may optionally include a top pan 16 .
- Bottom pan 12 may have any suitable shape, such as, for example, a generally rectangular shape, or more specifically, a square shape.
- Bottom pan 12 may be made out of any suitably strong, resilient, tensile material, such as, for example, formed steel.
- Bottom pan 12 includes a plate 20 and may optionally include sidewalls 22 attached thereto about the periphery of plate 20 . Sidewalls 22 substantially surround core 14 .
- FIG. 2 shows a side view of floor panel 10 .
- Core 14 has a core body 17 , which is made from a composite material that is a mixture of a chemically mineralized fibrous material 18 mixed with a cement binder 19 .
- This material provides strength to core 14 and to floor panel 10 , but is relatively light, as is thus easy to manoeuver and install, and to remove for access to under-floor services. Furthermore, this material provides good sound deadening properties to the floor panel 10 , making the floor panel 10 quiet to walk on. Furthermore, this material is relatively easy to machine, facilitating the manufacture of floor panels 10 .
- the material may begin generally as a fibre/cement paste, which is molded and cured.
- the mineralized fibrous material could include mineralized and neutralized softwood or hardwood shavings, vegetable or textile fibres, coco fibres, grasses, plant fibres, reed and inorganic fibres, such as asbestos, glass wool, rock wool and vermiculite.
- Various cement binders may be used, such as hydraulic cement and hydraulic lime.
- a preferred core material is known by the trademark DURISOLTM, a product of Durisol Materials Limited. DURISOLTM is typically used as a sound absorbent material in highway acoustical barriers to protect neighbourhoods that border highways from traffic noise.
- DURISOLTM has many of the properties described above that render it advantageous for use as a core material in access floor panel 10 . It is relatively strong, yet light. It is impervious to moisture and has good sound deadening characteristics. It is also virtually incombustible.
- Core 14 may have any suitable shape, such as a rectangular shape, or more specifically, a square shape.
- Core 14 has a top face 23 , a bottom face 24 and a plurality of side edge faces 25 .
- core 14 is oblong, there are two pairs of opposing side edge faces, wherein one pair is longer than the other pair.
- core 14 is square-shaped, there are four equal-length side edge faces.
- Core 14 may be fabricated in several ways.
- the fibre/cement paste may be prepared and molded into a square piece which is core 14 , and which has the correct dimensions to fit into bottom pan 12 .
- the paste may be molded into a large sheet and then cut to appropriate dimensions for installing into bottom pan 12 .
- an appropriate amount of paste may be placed directly into bottom pan 12 , and then pressed to the desired shape using top pan 16 and cured. If the uncured paste is placed directly in bottom pan 12 for molding and curing, bottom pan 12 preferably has no corner gaps or other leakage points. If the paste is cured directly in bottom pan 12 , the top surface 23 may require machining to achieve a surface of suitable height and flatness.
- a perpendicular force refers to any force that includes a component that is perpendicular to the plane of floor panel 10 , such as from a person standing or walking on floor panel 10 .
- Core 14 may optionally include reinforcing bars 26 , which are preferably encased in mortar shells 27 to strengthen core 14 .
- the number of reinforcing bars 26 that may be used depends on the application, and the bars 26 may extend parallelly, orthogonally, or at other angles relative to each other. Reinforcing bars 26 share the tensile stresses incurred by the core body 17 , and thus reduce the tensile stresses incurred by the bottom portion of the core body 17 . Thus, the reinforcing bars 26 improve the load bearing capability of floor panel 10 .
- reinforcing bars 26 are positioned closer the bottom face 24 of core 14 , for improved strengthening effect. While a plurality of reinforcing bars 26 is preferable, a single reinforcing bar 26 may be used.
- Top pan 16 includes a plate 30 , and may further include peripheral flaps 32 which fold over and overlap with sidewalls 22 of bottom pan 12 . It is not necessary for the overlapping region between flaps 32 and sidewalls 22 to be able to support any perpendicular force.
- FIG. 3 shows floor panel 10 , having a core 14 ′, which is similar to core 14 , but which includes a plurality of optional exterior reinforcing bars 26 ′.
- Exterior reinforcing bars 26 ′ reduce bending stresses on the core body 17 ′ from a perpendicular force such as, for example, a person standing on the floor panel 10 ′, by sharing tensile stresses with the core body 17 ′, in a similar fashion to reinforcing bars 26 .
- Exterior reinforcing bars 26 ′ are fixedly secured to the exterior of core 14 ′.
- Bars 26 ′ may be generally C-shaped in cross-section, as shown, and may be cast directly with the core body 17 ′, extending along side edge faces 25 . Alternatively, the core body 17 ′ may be cured and then machined as necessary for receiving reinforcing bars 26 ′, which may be pressed thereon or otherwise mounted. Reinforcing bars 26 ′ may be made from any suitably strong, resilient material, such as a heavy gauge steel.
- Core 14 ′ may include a single exterior reinforcing bar 26 ′ for some improvement in the load bearing capacity of floor panel 10 ′.
- exterior reinforcing bars 26 ′ on at least a pair of opposing side edge faces 25 , and it is more preferably to include an exterior reinforcing bars 26 ′ on each side edge face 25 of a core 14 ′.
- the bottom pan 12 ′ may be free of sidewalls, and the top pan 16 ′may be free of peripheral flaps.
- FIG. 4 shows a portion of floor panel 10 .
- Bottom pan 12 and core 14 may optionally include a plurality of interconnecting recesses 28 and protrusions 29 , which mate with each other to help strengthen the bond with core 14 .
- the recesses 28 and keys 29 may have any suitable mating shapes.
- the recesses 28 may be grooves and the protrusions may be keys, or alternatively, the recesses 28 may be conical, and the protrustions 29 may be cone-shaped bosses.
- the recesses 28 may be on the bottom pan 12 , and the protrusions 29 may be on the core 14 , or vice versa.
- recesses 28 and protrusions 29 may be on one of the core 14 and the bottom pan 12 for mating with complementary protrusions 29 and recesses 28 on the other. This is particularly effective and easy to manufacture if core 14 is molded directly inside bottom pan 12 so that protrusions 28 and/or recesses 29 in core 14 form when the mixture for core body 17 is placed into the bottom pan 12 . If recesses 28 and protrusions 29 are incorporated into floor panel 10 , the use of hot melt glue or other adhesive may not be necessary, and may be selected for use, depending on the particular application.
- top pan 16 may include protrusions 29 that mate with recesses 28 in core 14 , and for protrusions 29 to have a suitable width and depth so that their ‘inverse’ shapes that appear on the walking surface of the top pan 16 do not interfere with walking thereon.
- the properties of panel 10 such as strength, weight and sound deadening can be modified or selected by controlling the size and length of the fibres used in the core material, the ratios of mix components in the core material, the density of the core material, finished core thickness and the covering steel thicknesses. Also, autoclaving may be performed on core 14 to assist in curing of the material, thereby enhancing certain panel properties.
- a method in accordance with the present invention, of making access floor panel 10 will now be described.
- a pre-cured core 14 may be installed in bottom pan 12 , and an appropriate securing means, such as hot melt glue is applied to secure plate 20 of bottom pan 12 to core 14 .
- the securing means may also be used to secure plate 30 of top pan 16 to core 14 , so that core 14 is sandwiched between pans 12 and 16 and held firmly in place.
- FIG. 5 shows a plurality of pedestals 34 supporting a plurality of access floor panels 10 . Together, the access floor panels 10 and the pedestals 34 form an access flooring system 36 .
- Pedestal 34 includes a vertical support post 42 , a panel support piece 44 and a base 48 .
- Base 48 rests on a lower floor 50 .
- Individual panels 10 are supported on the corners of the bottom pan 12 by panel support 44 .
- the pedestals 34 may optionally be interconnected by a plurality of elongate stringers 38 , which provide further support for panels 10 .
- Stringers 38 serve to further support panels 10 along the periphery of the plate 20 of bottom pan 12 .
- Alternative stringers (not shown) having an inverted T-shaped section may also be used to provide enhanced support and may also be used to separate and confine adjacent panels 10 .
- top pan 16 and bottom pan 12 any type of joint known in the art may be used.
- Fabricating a floor panel with a core made from a fibre/cement mixture provides a panel that is strong, yet lightweight, that is virtually unaffected by moisture, and that provides good sound deadening characteristics.
Abstract
The invention relates to an access floor panel for use in an access floor system. The floor panel includes a bottom pan, and a core, the core being made from a mineralized fibrous material blended with cement, such as DURISOL™. The floor panel may further include a top pan which is attached to the top edge of the sidewall.
Description
- The present invention relates to access floor systems, and more particularly to access floor panels used in access floor systems.
- Access floor systems provide a functional floor that is elevated above a lower floor. Typically the elevated floor is composed of removable, rectangular floor panels that are mounted on an understructure affixed to the lower floor. These floor systems are used to cover ducting, power cables, and various other plumbing and electrical services that run underneath, above the lower floor, while still allowing technicians easy access to them for service, by removing the floor panels.
- There is a need for access floor panels that are strong, yet lightweight, unaffected by moisture, and that provide good sound deadening.
- In a first aspect, the present invention relates to an access floor panel for use in an access floor system. The panel comprises a bottom pan and a core. The bottom pan includes a plate, and the core is secured to the plate. The core is made from a mineralized fibrous material blended with cement.
- The core may be made specifically from DURISOL™.
- The bottom pan may further include a sidewall that projects upwards from the plate and surrounds the core.
- The floor panel may further comprise a top pan which is secured to the core.
- In a second aspect, the present invention relates to a method of making an access floor panel, the method comprising:
- putting a core material into a bottom pan, the core material comprising a mixture of a mineralized fibrous aggregate and a cement binder; and
- molding and curing the core material into a core in the bottom pan.
- In a third aspect, the present invention relates to a method of making an access floor panel, the method comprising:
- providing a pre-cured core that is adapted to fit with a bottom pan, the core comprising a mixture of a mineralized fibrous aggregate and a cement binder; and
- securing the core to said bottom pan.
- In a fourth aspect, the present invention relates to an access flooring system made with the floor panels described above and pedestals for supporting the floor panels above a lower floor. The pedestals have a base, a support post and a panel support piece for supportion a portion of at least one of the floor panels.
- The present invention will now be described by way of example only, with reference to the drawings in which:
- FIG. 1 is an isometric view of an access floor panel in accordance with a first preferred embodiment of the present invention;
- FIG. 2 is a sectional side view of the floor panel in FIG. 1;
- FIG. 3 is a sectional side view of a floor panel in FIG. 1 with optional exterior reinforcing bars;
- FIG. 4 is a sectional side view of a portion of the floor panel in FIG. 1, with an optional key and groove mating system;
- FIG. 5 is an isometric view of an access flooring system showing a plurality of pedestals for supporting a floor panel in accordance with the present invention; and
- FIG. 6 is an isometric view of an access flooring system showing a plurality of pedestals with stringers for supporting a floor panel in accordance with the present invention.
- Reference is made to FIGS. 1 and 2, which illustrate an
access floor panel 10 made in accordance with a first preferred embodiment of the present invention, and which will be used for the purposes of describing the operational aspects of the invention.Floor panel 10 is for use in access floor systems, and may have any suitable shape therefor. For example,floor panel 10 may have a generally rectangular shape. By rectangular, it is contemplated thatfloor panel 10 may be square or may be oblong (ie. it may have four equal-length sides or four sides wherein one pair of opposing sides is longer than the other pair of opposing sides). Furthermore, having a rectangular shape means, for the purposes of this disclosure, that thefloor panel 10 has a rectangular shape when viewed by persons who are walking on it. In the embodiment shown in FIG. 1, thefloor panel 10 is shown as square shaped. -
Floor panel 10 includes abottom pan 12, a core 14 (shown in FIG. 2) and may optionally include atop pan 16.Bottom pan 12 may have any suitable shape, such as, for example, a generally rectangular shape, or more specifically, a square shape.Bottom pan 12 may be made out of any suitably strong, resilient, tensile material, such as, for example, formed steel.Bottom pan 12 includes aplate 20 and may optionally includesidewalls 22 attached thereto about the periphery ofplate 20.Sidewalls 22 substantially surroundcore 14. - Reference is made to FIG. 2, which shows a side view of
floor panel 10.Core 14 has acore body 17, which is made from a composite material that is a mixture of a chemically mineralizedfibrous material 18 mixed with acement binder 19. This material provides strength tocore 14 and tofloor panel 10, but is relatively light, as is thus easy to manoeuver and install, and to remove for access to under-floor services. Furthermore, this material provides good sound deadening properties to thefloor panel 10, making thefloor panel 10 quiet to walk on. Furthermore, this material is relatively easy to machine, facilitating the manufacture offloor panels 10. - The material may begin generally as a fibre/cement paste, which is molded and cured. The mineralized fibrous material could include mineralized and neutralized softwood or hardwood shavings, vegetable or textile fibres, coco fibres, grasses, plant fibres, reed and inorganic fibres, such as asbestos, glass wool, rock wool and vermiculite. Various cement binders may be used, such as hydraulic cement and hydraulic lime. A preferred core material is known by the trademark DURISOL™, a product of Durisol Materials Limited. DURISOL™ is typically used as a sound absorbent material in highway acoustical barriers to protect neighbourhoods that border highways from traffic noise. However, DURISOL™ has many of the properties described above that render it advantageous for use as a core material in
access floor panel 10. It is relatively strong, yet light. It is impervious to moisture and has good sound deadening characteristics. It is also virtually incombustible. - Core14 may have any suitable shape, such as a rectangular shape, or more specifically, a square shape. Core 14 has a
top face 23, abottom face 24 and a plurality of side edge faces 25. For embodiments whereincore 14 is oblong, there are two pairs of opposing side edge faces, wherein one pair is longer than the other pair. For embodiments whereincore 14 is square-shaped, there are four equal-length side edge faces. - Core14 may be fabricated in several ways. The fibre/cement paste may be prepared and molded into a square piece which is
core 14, and which has the correct dimensions to fit intobottom pan 12. Alternatively, the paste may be molded into a large sheet and then cut to appropriate dimensions for installing intobottom pan 12. Alternatively, an appropriate amount of paste may be placed directly intobottom pan 12, and then pressed to the desired shape usingtop pan 16 and cured. If the uncured paste is placed directly inbottom pan 12 for molding and curing,bottom pan 12 preferably has no corner gaps or other leakage points. If the paste is cured directly inbottom pan 12, thetop surface 23 may require machining to achieve a surface of suitable height and flatness. - When a perpendicular force is exerted on
panel 10, such as, for example, by a person standing onpanel 10,panel 10 incurs a bending stress, such that a bottom portion ofpanel 10 is placed in tension and an upper portion ofpanel 10 is placed in compression. A perpendicular force, for the purposes of this disclosure, refers to any force that includes a component that is perpendicular to the plane offloor panel 10, such as from a person standing or walking onfloor panel 10. -
Core 14 may optionally include reinforcingbars 26, which are preferably encased inmortar shells 27 to strengthencore 14. The number of reinforcingbars 26 that may be used depends on the application, and thebars 26 may extend parallelly, orthogonally, or at other angles relative to each other. Reinforcingbars 26 share the tensile stresses incurred by thecore body 17, and thus reduce the tensile stresses incurred by the bottom portion of thecore body 17. Thus, the reinforcingbars 26 improve the load bearing capability offloor panel 10. Preferably, reinforcingbars 26 are positioned closer thebottom face 24 ofcore 14, for improved strengthening effect. While a plurality of reinforcingbars 26 is preferable, a single reinforcingbar 26 may be used. -
Top pan 16 includes aplate 30, and may further includeperipheral flaps 32 which fold over and overlap withsidewalls 22 ofbottom pan 12. It is not necessary for the overlapping region betweenflaps 32 and sidewalls 22 to be able to support any perpendicular force. - Reference is made to FIG. 3, which shows
floor panel 10, having a core 14′, which is similar tocore 14, but which includes a plurality of optionalexterior reinforcing bars 26′.Exterior reinforcing bars 26′ reduce bending stresses on thecore body 17′ from a perpendicular force such as, for example, a person standing on thefloor panel 10′, by sharing tensile stresses with thecore body 17′, in a similar fashion to reinforcingbars 26.Exterior reinforcing bars 26′, however, are fixedly secured to the exterior ofcore 14′.Bars 26′ may be generally C-shaped in cross-section, as shown, and may be cast directly with thecore body 17′, extending along side edge faces 25. Alternatively, thecore body 17′ may be cured and then machined as necessary for receiving reinforcingbars 26′, which may be pressed thereon or otherwise mounted. Reinforcingbars 26′ may be made from any suitably strong, resilient material, such as a heavy gauge steel. -
Core 14′ may include a singleexterior reinforcing bar 26′ for some improvement in the load bearing capacity offloor panel 10′. However, forrectangular floor panels 10′, it is advantageous to includeexterior reinforcing bars 26′ on at least a pair of opposing side edge faces 25, and it is more preferably to include anexterior reinforcing bars 26′ on each side edge face 25 of a core 14′. - Where the core14′ includes
exterior reinforcing bars 26′, thebottom pan 12′ may be free of sidewalls, and thetop pan 16′may be free of peripheral flaps. - Reference is made to FIG. 4, which shows a portion of
floor panel 10.Bottom pan 12 andcore 14 may optionally include a plurality of interconnectingrecesses 28 andprotrusions 29, which mate with each other to help strengthen the bond withcore 14. Therecesses 28 andkeys 29 may have any suitable mating shapes. Therecesses 28 may be grooves and the protrusions may be keys, or alternatively, therecesses 28 may be conical, and theprotrustions 29 may be cone-shaped bosses. Therecesses 28 may be on thebottom pan 12, and theprotrusions 29 may be on thecore 14, or vice versa. As a further alternative, recesses 28 andprotrusions 29 may be on one of thecore 14 and thebottom pan 12 for mating withcomplementary protrusions 29 and recesses 28 on the other. This is particularly effective and easy to manufacture ifcore 14 is molded directly insidebottom pan 12 so thatprotrusions 28 and/or recesses 29 incore 14 form when the mixture forcore body 17 is placed into thebottom pan 12. Ifrecesses 28 andprotrusions 29 are incorporated intofloor panel 10, the use of hot melt glue or other adhesive may not be necessary, and may be selected for use, depending on the particular application. - The same structure and technique of using
recesses 28 andprotrusions 29 for securingcore 14 tobottom pan 12 may be used to securetop pan 16 tocore 14, however, consideration should be given to make the walking surface (the uppwards facing surface) oftop pan 16 usable for walking thereon. Thus, it is preferable fortop pan 16 to includeprotrusions 29 that mate withrecesses 28 incore 14, and forprotrusions 29 to have a suitable width and depth so that their ‘inverse’ shapes that appear on the walking surface of thetop pan 16 do not interfere with walking thereon. - The properties of
panel 10 such as strength, weight and sound deadening can be modified or selected by controlling the size and length of the fibres used in the core material, the ratios of mix components in the core material, the density of the core material, finished core thickness and the covering steel thicknesses. Also, autoclaving may be performed oncore 14 to assist in curing of the material, thereby enhancing certain panel properties. - A method in accordance with the present invention, of making
access floor panel 10 will now be described. Apre-cured core 14 may be installed inbottom pan 12, and an appropriate securing means, such as hot melt glue is applied to secureplate 20 ofbottom pan 12 tocore 14. As well, the securing means may also be used to secureplate 30 oftop pan 16 tocore 14, so thatcore 14 is sandwiched betweenpans -
Fixedly securing core 14 to plate 20 ofbottom pan 12permits plate 20 to share tensile stresses on the lower portion ofcore 14 and thus improves the load bearing capability ofcore 14 in a similar fashion to reinforcingbars 26. - Reference is made to FIG. 5, which shows a plurality of
pedestals 34 supporting a plurality ofaccess floor panels 10. Together, theaccess floor panels 10 and thepedestals 34 form anaccess flooring system 36. -
Pedestal 34 includes avertical support post 42, apanel support piece 44 and abase 48.Base 48 rests on alower floor 50.Individual panels 10 are supported on the corners of thebottom pan 12 bypanel support 44. - As shown in FIG. 6, the
pedestals 34 may optionally be interconnected by a plurality ofelongate stringers 38, which provide further support forpanels 10.Stringers 38 serve to further supportpanels 10 along the periphery of theplate 20 ofbottom pan 12. - Alternative stringers (not shown) having an inverted T-shaped section may also be used to provide enhanced support and may also be used to separate and confine
adjacent panels 10. - While a specific type of joint has been disclosed between
top pan 16 andbottom pan 12, any type of joint known in the art may be used. - Fabricating a floor panel with a core made from a fibre/cement mixture provides a panel that is strong, yet lightweight, that is virtually unaffected by moisture, and that provides good sound deadening characteristics.
- As will be apparent to persons skilled in the art, various modifications and adaptations of the systems and methods described above are possible without departure from the present invention, the scope of which is defined in the appended claims.
Claims (20)
1. An access floor panel, comprising:
a bottom pan including a plate;
a core including a core body made from a mixture of a mineralized fibrous aggregate and a cement binder, said core being secured to said plate.
2. An access floor panel as in claim 1 , wherein said bottom pan further comprises a sidewall that projects upwards from said plate and surrounds said core.
3. An access floor panel as in claim 1 , wherein said core body is made from DURISOL™.
4. An access floor panel as in claim 1 , further comprising a top pan, said top pan being attached to at least one of said bottom pan and said core.
5. An access floor panel as in claim 1 , wherein said plate is a resilient tensile member and said core is fixedly secured to said plate so that said core body and said plate share tensile stresses incurred by said core when a perpendicular force is exerted on said core.
6. An access floor panel as in claim 1 , wherein said core is secured to said plate with a hot melt glue.
7. An access floor panel as in claim 2 , wherein said mixture is a paste that is adapted to be molded and cured in said bottom pan.
8. An access floor panel as in claim 1 , further comprising at least one anchor mounted to said core and extending outwardly from the surface of said core, wherein said bottom pan further includes at least one anchor mating portion for mating with said at least one anchor to secure said core and said bottom pan together.
9. An access floor panel as in claim 1 , wherein said core further includes at least one reinforcing bar positioned within said core body so that said core body and said at least one reinforcing bar share tensile stresses incurred by said core when a perpendicular force is exerted on said core.
10. An access floor panel as in claim 1 , wherein said core body has a top face, a bottom face and a plurality of side edge faces extending between said top and bottom faces, and said core further includes at least one exterior reinforcing bar, said at least one exterior reinforcing bar being fixedly secured to said core body and extending along at least one side edge face of said core body so that said core body and said at least one exterior reinforcing bar share tensile stresses incurred by said core when a perpendicular force is exerted on said core.
11. An access floor panel as in claim 10 , wherein said core body is generally rectangular, and said core further includes two exterior reinforcing bars that are fixedly secured to said core body along two opposing side edge faces of said core body.
12. An access floor panel as in claim 10 , wherein said core further includes one of said at least one exterior reinforcing bar, fixedly secured to said core body along each side edge face of said core body.
13. An access floor panel as in claim 1 , wherein at least one of said core and said plate has at least one protrusion, and the other of said core and said plate has a recess for mating with said protrusion to secure said core to said plate.
14. A method of making an access floor panel, the method comprising:
putting a core material into a bottom pan, said core material comprising a mixture of a mineralized fibrous aggregate and a cement binder; and
molding and curing said core material into a core in said bottom pan.
15. The method as in claim 14 , further comprising the step of securing a top pan to said core.
16. The method as in claim 14 , wherein the securing step is executed with a hot melt glue.
17. A method of making an access floor panel, the method comprising:
providing a pre-cured core that is adapted to fit with a bottom pan, said core comprising a mixture of a mineralized fibrous aggregate and a cement binder; and
securing said core to said bottom pan.
18. The method as in claim 17 , further comprising the step of securing a top pan to said core.
19. The method as in claim 17 , wherein the securing step is executed with a hot melt glue.
20. An access flooring system comprising a plurality of access floor panels as claimed in claim 1; and
a plurality of pedestals for supporting said access floor panels above a lower floor, each said pedestals including a base that is mountable to said lower floor, a support post extending upwards from said base and a panel support piece mounted to said support post for receiving and supporting a portion of at least one of said plurality of access floor panels.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/007,503 US20020062625A1 (en) | 2000-12-11 | 2001-12-10 | Access floor panel and system |
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US25411100P | 2000-12-11 | 2000-12-11 | |
US10/007,503 US20020062625A1 (en) | 2000-12-11 | 2001-12-10 | Access floor panel and system |
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US20020062625A1 true US20020062625A1 (en) | 2002-05-30 |
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US10/007,503 Abandoned US20020062625A1 (en) | 2000-12-11 | 2001-12-10 | Access floor panel and system |
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Country | Link |
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US (1) | US20020062625A1 (en) |
CA (1) | CA2364892A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005030670A1 (en) * | 2003-09-29 | 2005-04-07 | Jun-Han Choi | Incombustible composition for access floor board, method of producing access floor board using incombustible composition, and incombustible access floor board using incombustible composition |
US20080141603A1 (en) * | 2006-12-15 | 2008-06-19 | Ashland Licensing And Intellectual Property Llc | Installation comprising a polymeric grout for bonding tiles to each other and an underlayment to produce a floating floor and method of manufacture |
US20090084046A1 (en) * | 2007-09-28 | 2009-04-02 | Mcconnell Anthony | Floor tile with adhesively bonded concrete |
WO2009075906A2 (en) * | 2007-12-07 | 2009-06-18 | Ashland Licensing And Intellectual Property Llc | Installation comprising a polymeric grout for bonding tiles to each other and an underlayment to produce a floor and method of manufacture |
US20100300015A1 (en) * | 2009-05-31 | 2010-12-02 | United Integrated Services Co. Ltd. | Method for manufacturing a side-folded type elevated floor and a system thereof |
EP2740860A1 (en) * | 2012-12-07 | 2014-06-11 | Zurecon Ag | Method for installing a raised floor, raised floor and raised floor panel |
US20160090740A1 (en) * | 2013-03-14 | 2016-03-31 | Mark Jeffery Giarritta | Modular construction system |
JP2019199769A (en) * | 2018-05-17 | 2019-11-21 | 株式会社竹中工務店 | Floor structure and method for reinforcing floor part |
GB2587789A (en) * | 2019-08-06 | 2021-04-14 | Euro Polymers Consult Ltd | Flooring assembly |
KR20210094901A (en) * | 2020-01-22 | 2021-07-30 | 알엠에스테크놀러지(주) | Built-up-type anti-vibration system with adjustable height by hydraulic damper |
US20210387436A1 (en) * | 2020-06-12 | 2021-12-16 | Välinge Innovation AB | Building panel comprising mineral-based layer |
-
2001
- 2001-12-10 US US10/007,503 patent/US20020062625A1/en not_active Abandoned
- 2001-12-10 CA CA002364892A patent/CA2364892A1/en not_active Abandoned
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005030670A1 (en) * | 2003-09-29 | 2005-04-07 | Jun-Han Choi | Incombustible composition for access floor board, method of producing access floor board using incombustible composition, and incombustible access floor board using incombustible composition |
US20080141603A1 (en) * | 2006-12-15 | 2008-06-19 | Ashland Licensing And Intellectual Property Llc | Installation comprising a polymeric grout for bonding tiles to each other and an underlayment to produce a floating floor and method of manufacture |
US7810299B2 (en) | 2007-09-28 | 2010-10-12 | Haworth, Inc. | Manufacturing process for a floor tile |
US20090084066A1 (en) * | 2007-09-28 | 2009-04-02 | Brown Ronald H | Manufacturing process for a floor tile |
WO2009042229A1 (en) * | 2007-09-28 | 2009-04-02 | Haworth, Inc. | Floor tile with adhesively bonded concrete and manufacturing process therefor |
US7770345B2 (en) * | 2007-09-28 | 2010-08-10 | Haworth, Inc. | Floor tile with adhesively joined concrete sub-blocks |
US20090084046A1 (en) * | 2007-09-28 | 2009-04-02 | Mcconnell Anthony | Floor tile with adhesively bonded concrete |
WO2009075906A2 (en) * | 2007-12-07 | 2009-06-18 | Ashland Licensing And Intellectual Property Llc | Installation comprising a polymeric grout for bonding tiles to each other and an underlayment to produce a floor and method of manufacture |
WO2009075906A3 (en) * | 2007-12-07 | 2009-12-30 | Ashland Licensing And Intellectual Property Llc | Installation comprising a polymeric grout for bonding tiles to each other and an underlayment to produce a floor and method of manufacture |
US20100300015A1 (en) * | 2009-05-31 | 2010-12-02 | United Integrated Services Co. Ltd. | Method for manufacturing a side-folded type elevated floor and a system thereof |
EP2740860A1 (en) * | 2012-12-07 | 2014-06-11 | Zurecon Ag | Method for installing a raised floor, raised floor and raised floor panel |
US20160090740A1 (en) * | 2013-03-14 | 2016-03-31 | Mark Jeffery Giarritta | Modular construction system |
JP2019199769A (en) * | 2018-05-17 | 2019-11-21 | 株式会社竹中工務店 | Floor structure and method for reinforcing floor part |
JP7071869B2 (en) | 2018-05-17 | 2022-05-19 | 株式会社竹中工務店 | Floor structure and method of reinforcing the floor |
GB2587789A (en) * | 2019-08-06 | 2021-04-14 | Euro Polymers Consult Ltd | Flooring assembly |
GB2587789B (en) * | 2019-08-06 | 2023-06-07 | Euro Polymers Contracts Ltd | Flooring assembly |
KR20210094901A (en) * | 2020-01-22 | 2021-07-30 | 알엠에스테크놀러지(주) | Built-up-type anti-vibration system with adjustable height by hydraulic damper |
KR102338771B1 (en) * | 2020-01-22 | 2021-12-14 | 알엠에스테크놀러지(주) | Built-up-type anti-vibration system with adjustable height by hydraulic damper |
US20210387436A1 (en) * | 2020-06-12 | 2021-12-16 | Välinge Innovation AB | Building panel comprising mineral-based layer |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CAMINO MODULAR SYSTEMS INC., CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FODEN, JACK;REEL/FRAME:012628/0257 Effective date: 20020221 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |