WO1995020713A1 - Warm edge spacer bars - Google Patents

Warm edge spacer bars Download PDF

Info

Publication number
WO1995020713A1
WO1995020713A1 PCT/US1995/000993 US9500993W WO9520713A1 WO 1995020713 A1 WO1995020713 A1 WO 1995020713A1 US 9500993 W US9500993 W US 9500993W WO 9520713 A1 WO9520713 A1 WO 9520713A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
accordance
sheets
spacer bar
sidewalls
Prior art date
Application number
PCT/US1995/000993
Other languages
French (fr)
Inventor
Vincent Anthony Pagano
Ian Douglas Sherman
Richard Alfred Bennett
Original Assignee
Hygrade Metal Moulding Manufacturing Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hygrade Metal Moulding Manufacturing Corp. filed Critical Hygrade Metal Moulding Manufacturing Corp.
Publication of WO1995020713A1 publication Critical patent/WO1995020713A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • E06B3/66352—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes with separate sealing strips between the panes and the spacer
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66314—Section members positioned at the edges of the glazing unit of tubular shape
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66323—Section members positioned at the edges of the glazing unit comprising an interruption of the heat flow in a direction perpendicular to the unit
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/12—Measures preventing the formation of condensed water
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B2003/6638—Section members positioned at the edges of the glazing unit with coatings

Definitions

  • the present invention relates to spacers, in particular warm-edge spacer bars for use in the manufacture of insulating glass.
  • the manufacture of insulating glass requires the use of either two or three panes of glass having spacer bars between the panes which create the insulating value of the fabricated unit.
  • the glass is adhered to the spacer bar utilizing a sealant or adhesive.
  • the spacer bars normally contain a drying agent or desiccant, to remove any moisture that may accumulate between the panels. Corner keys are used to hold the spacers together in an insulating unit.
  • the spacer bars may be fabricated out of various metals with aluminum being most common. However, the use of metal spacers freely allows the transfer of heat and cold through the unit. The unit is not therefore, as energy efficient as it might be. In cold climates, the center of the glass unit is typically warmer then the edge where the spacer bar is applied.
  • the present invention achieves the above objects by, inter alia, utilizing steel, either stainless, electro- galvanized or tin-plated, each of which is less conductive than aluminum.
  • the present invention provides for the use of a aluminum polycarbonate spacer which significantly improves the thermal performance of such spacer. Also, the present invention reduces the metal to glass contact area thereby further achieving the above objectives.
  • a spacer bar typically starts with a metal coil, either aluminum or steel, which is slit into narrow coils the width of which corresponds to the amount of material necessary to form the required spacer bar.
  • the narrow coil is then formed into a spacer shape.
  • Each of the present inventions requires a different width coil.
  • the application of such materials is a continuous process.
  • Figure 1 is a sectional view of a spacer bar shape which can be fabricated out of stainless, electro-galvanized or tin- plated steel incorporating the teachings of the present invention
  • Figures 2 and 2A are respective sectional and perspective views of a spacer bar shape fabricated out of aluminum which includes an extruded plastic spacer on either side, incorporating the teachings of the present invention
  • Figures 3 and 3A are respective sectional and perspective views of a spacer bar fabricated from either aluminum or steel which includes integral glass-filled polycarbonate spacers on the side of the spacer facing the exterior of the unit, incorporating the teachings of the present invention.
  • Figures 4 and 4A are respective sectional and perspective views of an aluminum spacer which includes a nylon spacer on both the top and the bottom of the metal, incorporating the teachings of the present invention.
  • FIG. 1 an elongated warm edge spacer bar 10 positioned between two sheets 12 and 14 of glass which together comprise an insulated glass unit 16.
  • This spacer bar 10 would extend about the entire peripheral edge of the glass and are commonly joined, if necessary depending on the construction, by appropriately shaped corner keys (not shown) .
  • the space bar 10 is somewhat rectangular in configuration having flat top 18, bottom 20, and sidewalls 22 and 24.
  • the sidewalls 22 and 24 merge into the top 18 and bottom 20 at respective flange portions 26 and 28.
  • the spacer bar 10 may be fabricated out of stainless steel, electro-galvanized or tin-plated steel, or any other material suitable for purposes. This shape reduces the metal to glass contact area thereby providing a larger path for the potential transfer of heat or cold.
  • the combination of a less conductive metal with a larger path provides for improved thermal efficiency of the unit.
  • the spacer bar 10 is provided in its interior with desiccant 30 and commonly include a plurality of opening on its upper surface (see e.g. figure 2A) to remove any interior moisture.
  • the glass 12 and 14 is adhered to the spacer bar 10 by way of a sealant or adhesive 32, such as butyl, a layer of which is applied about the unit contacting the bottom 20 of the spacer bar 10 and corner keys if necessary and a portion of the respective glass sheets 12 and 14.
  • a sealant or adhesive 32 such as butyl, a layer of which is applied about the unit contacting the bottom 20 of the spacer bar 10 and corner keys if necessary and a portion of the respective glass sheets 12 and 14.
  • a sealant or adhesive 32 such as butyl
  • spacer bar 100 is shown between two sheets 102 and 104 of glass making up a unit 105. Again, the spacer bar 100 would extend about the entire periphery of the glass and would be coupled, if necessary depending upon the construction, by appropriately shaped corner keys (not shown) .
  • Spacer bar 100 includes a flat top 106 and bottom 108 and respective opposite sidewalls 110 an 112. At the merger of the top 106, bottom 108 and sidewalls 110 and 112 are respective curled flanges 114 and 116. The space between opposite respective flanges 114 and 116 defines capturing grooves 118 and 120.
  • portions 122 and 124 Captured within the grooves 118 and 120 are respective insert or spacer portions 122 and 124 which include a portion captured by the grooves and extends there beyond between the top 106 and bottom 108. Portions 122 and 124 may be made of for example, extruded plastic and prevent any metal to glass contact thereby improving thermal efficiency. Again, the spacer bar 110 may be filled with a desiccant with openings to the interior of the glass unit 105. Once assembled, a layer of adhesive 128 is placed about the unit sealing it and maintaining the unit together.
  • an insulated glass unit 200 which comprises an elongated space bar 202 and respective sheets of glass 204 and 206.
  • the spacer bar 202 can be made of aluminum or any other material suitable for purpose.
  • the spacer bar 202 is rectangular in shape having a top 208 and bottom 210 surface along with respective sidewalls 212 and 214. Included on sidewall 214 is a notched out portion 216 which reduces the metal to glass contact area.
  • spacer portions 218 and 220 may be made of glass filled polycarbonate and coupled to the bar 202 by way of notches 222 and 224 and may be maintained by an interference fit and/or adhesive.
  • the use of the glass filled polycarbonate spacer portion improves thermal characteristics by reducing the metal to surface contact area of the sidewall 212.
  • the interior of the bar 202 is provided with a desiccant 226 with opening 228 provided to the unit's interior.
  • Appropriate corner keys may be utilized to join adjacent lengths of the bars.
  • a layer of adhesive 230 such as butyl is applied about the bottom 210, exposed portions of corner keys and portions of the glass 204 and 206. Again, framing of the unit can now take place.
  • the unit 300 includes respective glass sheets 302 and 304 in which, intermediately disposed about its periphery, is provided a spacer bar 306.
  • the bar 306 includes a generally rectangular shaped body 308 having a bottom 310, top 312, and sidewalls 314 and 316.
  • the body 308 may be made of aluminum or any other material suitable for purpose.
  • Bottom 310 is angled downward at the center rather than straight.
  • Affixed to the top 312 by adhesive or otherwise is non-metal flat spacer portion 318, and affixed to the bottom is an angled non-metal portion 320. These may be made of nylon and thereby eliminate any metal to glass contact.
  • the spacer bar 306 is provided with a desiccant 322 with openings 324 to the interior with an adhesive 326 provided about the perimeter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

For use in insulating glass units (12, 14), spacer bars (10) which provide improved thermal efficiency and condensation resistance of the unit by decreasing the thermal transfer at the edge of the unit through the reduction of metal to glass contact area (22, 24), increasing the path of travel of heat or cold and/or the use of thermal non-metallic material.

Description

WARM EDGE SPACER BARS FIELD OF INVENTION The present invention relates to spacers, in particular warm-edge spacer bars for use in the manufacture of insulating glass.
BACKGROUND OF THE INVENTIONS
The manufacture of insulating glass requires the use of either two or three panes of glass having spacer bars between the panes which create the insulating value of the fabricated unit. The glass is adhered to the spacer bar utilizing a sealant or adhesive. The spacer bars normally contain a drying agent or desiccant, to remove any moisture that may accumulate between the panels. Corner keys are used to hold the spacers together in an insulating unit. The spacer bars may be fabricated out of various metals with aluminum being most common. However, the use of metal spacers freely allows the transfer of heat and cold through the unit. The unit is not therefore, as energy efficient as it might be. In cold climates, the center of the glass unit is typically warmer then the edge where the spacer bar is applied. These "cold- edges" are undesirable. Also, the conductive nature of the metal reduces the condensation resistance of the insulating glass unit. The reduction in condensation resistance causes water vapor to condense on the bottom of an insulated glass unit and ultimately condense on the bottom of an insulated glass unit and ultimately drip or seep onto the window sash causing damage to the window unit, surrounding wall surfaces and floors. This is a particular problem when the window sash is fabricated out of wood. More efficient, i.e, warmer edges, produce greater condensation resistance, permitting higher indoor humidity for a more comfortable environment at lower outdoor temperatures. In addition, certain states have begun requiring labels on insulating windows and doors indicating the "U" value of the unit to the consumer. The "U" value measures the thermal efficiency of the unit. Also, the National Fenestration Council is seeking similar legislation at the Federal level. Moreover, utilities have begun offering rebates to consumers who install energy efficient items such as insulating windows and doors. With the proposed addition of an energy tax adding to the already spiraling cost of energy not only in the United States but worldwide, the need for "warm-edge" spacer bar is increasing.
SUMMARY AND OBJECTIVES OF THE INVENTIONS
It is therefore a principal object of the invention to provide a means of making "warm-edge" spacers which improve the thermal efficiency of an insulating glass unit.
It is a further object of the invention to provide for "warm-edge" spacer bars which allow for their use with existing manufacturing processes for such bars, particularly when fabricated with metal.
The present invention achieves the above objects by, inter alia, utilizing steel, either stainless, electro- galvanized or tin-plated, each of which is less conductive than aluminum. In addition, the present invention provides for the use of a aluminum polycarbonate spacer which significantly improves the thermal performance of such spacer. Also, the present invention reduces the metal to glass contact area thereby further achieving the above objectives.
The manufacture of a spacer bar typically starts with a metal coil, either aluminum or steel, which is slit into narrow coils the width of which corresponds to the amount of material necessary to form the required spacer bar. The narrow coil is then formed into a spacer shape. Each of the present inventions requires a different width coil. In the case of the present invention which combines metal with either glass-filled polycarbonate, rigid plastic or nylon, the application of such materials is a continuous process.
BRIEF DESCRIPTION OF THE DRAWINGS Thus by the present invention, its objectives and advantages will be realized, the description of which should be taken in conjunction with the attached drawings, wherein: Figure 1 is a sectional view of a spacer bar shape which can be fabricated out of stainless, electro-galvanized or tin- plated steel incorporating the teachings of the present invention; Figures 2 and 2A are respective sectional and perspective views of a spacer bar shape fabricated out of aluminum which includes an extruded plastic spacer on either side, incorporating the teachings of the present invention;
Figures 3 and 3A are respective sectional and perspective views of a spacer bar fabricated from either aluminum or steel which includes integral glass-filled polycarbonate spacers on the side of the spacer facing the exterior of the unit, incorporating the teachings of the present invention; and
Figures 4 and 4A are respective sectional and perspective views of an aluminum spacer which includes a nylon spacer on both the top and the bottom of the metal, incorporating the teachings of the present invention; and
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Turning now more particularly to the drawings, there is shown in figure 1 an elongated warm edge spacer bar 10 positioned between two sheets 12 and 14 of glass which together comprise an insulated glass unit 16. This spacer bar 10 would extend about the entire peripheral edge of the glass and are commonly joined, if necessary depending on the construction, by appropriately shaped corner keys (not shown) . The space bar 10 is somewhat rectangular in configuration having flat top 18, bottom 20, and sidewalls 22 and 24. The sidewalls 22 and 24 merge into the top 18 and bottom 20 at respective flange portions 26 and 28. The spacer bar 10 may be fabricated out of stainless steel, electro-galvanized or tin-plated steel, or any other material suitable for purposes. This shape reduces the metal to glass contact area thereby providing a larger path for the potential transfer of heat or cold. The combination of a less conductive metal with a larger path provides for improved thermal efficiency of the unit.
-3-
RECTIF1ED SHEET (RULE 91) The spacer bar 10 is provided in its interior with desiccant 30 and commonly include a plurality of opening on its upper surface (see e.g. figure 2A) to remove any interior moisture. The glass 12 and 14 is adhered to the spacer bar 10 by way of a sealant or adhesive 32, such as butyl, a layer of which is applied about the unit contacting the bottom 20 of the spacer bar 10 and corner keys if necessary and a portion of the respective glass sheets 12 and 14. Thus the unit is complete and may then be fitted with a desired framing. Turning now to figure 2 and 2A, there is shown a modified version of a warm edge spacer bar which may be made of for example, aluminum or any other material suitable for purpose. In this regard, an elongated somewhat rectangular shaped spacer bar 100 is shown between two sheets 102 and 104 of glass making up a unit 105. Again, the spacer bar 100 would extend about the entire periphery of the glass and would be coupled, if necessary depending upon the construction, by appropriately shaped corner keys (not shown) . Spacer bar 100 includes a flat top 106 and bottom 108 and respective opposite sidewalls 110 an 112. At the merger of the top 106, bottom 108 and sidewalls 110 and 112 are respective curled flanges 114 and 116. The space between opposite respective flanges 114 and 116 defines capturing grooves 118 and 120. Captured within the grooves 118 and 120 are respective insert or spacer portions 122 and 124 which include a portion captured by the grooves and extends there beyond between the top 106 and bottom 108. Portions 122 and 124 may be made of for example, extruded plastic and prevent any metal to glass contact thereby improving thermal efficiency. Again, the spacer bar 110 may be filled with a desiccant with openings to the interior of the glass unit 105. Once assembled, a layer of adhesive 128 is placed about the unit sealing it and maintaining the unit together.
Turning now to Figures 3 and 3A there is shown an insulated glass unit 200 which comprises an elongated space bar 202 and respective sheets of glass 204 and 206. The spacer bar 202 can be made of aluminum or any other material suitable for purpose. The spacer bar 202 is rectangular in shape having a top 208 and bottom 210 surface along with respective sidewalls 212 and 214. Included on sidewall 214 is a notched out portion 216 which reduces the metal to glass contact area. On sidewalls 212 there is provided two inserts or spacer portions 218 and 220 which extend from spacer bar 202 to what is to be the exterior glass 206. These spacer portions 218 and 220 may be made of glass filled polycarbonate and coupled to the bar 202 by way of notches 222 and 224 and may be maintained by an interference fit and/or adhesive. The use of the glass filled polycarbonate spacer portion improves thermal characteristics by reducing the metal to surface contact area of the sidewall 212. The interior of the bar 202 is provided with a desiccant 226 with opening 228 provided to the unit's interior. Appropriate corner keys may be utilized to join adjacent lengths of the bars. Once assembled a layer of adhesive 230 such as butyl is applied about the bottom 210, exposed portions of corner keys and portions of the glass 204 and 206. Again, framing of the unit can now take place. With reference now to figures 4 and 4A, a further embodiment is shown. In this regard, the unit 300 includes respective glass sheets 302 and 304 in which, intermediately disposed about its periphery, is provided a spacer bar 306. The bar 306 includes a generally rectangular shaped body 308 having a bottom 310, top 312, and sidewalls 314 and 316. The body 308 may be made of aluminum or any other material suitable for purpose. Bottom 310 is angled downward at the center rather than straight. Affixed to the top 312 by adhesive or otherwise is non-metal flat spacer portion 318, and affixed to the bottom is an angled non-metal portion 320. These may be made of nylon and thereby eliminate any metal to glass contact.
Again, the spacer bar 306 is provided with a desiccant 322 with openings 324 to the interior with an adhesive 326 provided about the perimeter. Thus, by the present invention its objects and advantages are realized and although preferred embodiments have been disclosed and described in detail herein, its scope should not be limited thereby, rather its scope should be determined by that of the appended claims.

Claims

What is claimed is
1. A spacer bar for use in insulated glass units and the like, comprising: a substantially rectangular body portion having a top, bottom and sidewalls; respective flange members positioned on the top and bottom extending out and away from said sidewalls; and wherein said flange members are intended to prevent contact of the sidewalls to glass of an insulated glass unit so as to reduce spacer bar to glass contact to improve thermal efficiency.
2. The invention in accordance with claim 1 wherein the spacer bar is made of a single piece construction with the flanges formed as a continuation of the top; sidewalls and botto .
3. The invention in accordance with claim 2 wherein said flanges provide space between the sidewalls and glass.
4. The invention in accordance with claim 3 wherein the spacer bar is made of metal such as stainless steel, electro- galvanized or tin-plated steel.
5. The invention in accordance with claim 4 wherein the body portion is hollow and contained therein is a desiccant.
6. The invention in accordance with claim 5 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom flange of the spacer bar and a portion of each sheet of glass so as to create an insulated glass unit.
7. The invention in accordance with claim 1 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom flange of the spacer bar and a portion of each sheet of glass so as to create an insulated glass unit.
8. The invention in accordance with claim 1 wherein the body portion is made of a single piece metal construction with the flanges maintained on the top and bottom being made of a non-metal material.
9. The invention in accordance with claim 8 wherein said body is made of a metal such as aluminum or steel and said flanges are made of nylon.
10. The invention in accordance with claim 8 wherein said bottom is V-shaped and the flange on the bottom is also V-shaped.
11. The invention in accordance with claim 8 wherein said flanges provide space between the side walls and glass.
12. The invention in accordance with claim 8 wherein the space body portion is hollow and contained therein is a desiccant.
13. The invention in accordance with claim 8 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom flange of the spacer bar and a portion of each sheet of glass so as to create an insulated glass unit.
14. A spacer bar for use in insulated glass units and the like, comprising: a substantially rectangular body portion having a top, bottom and sidewalls; and insert portions made of a material different from that of the body maintained adjacent the sidewalls so as to preclude contact between the body and glass to provide for improved thermal efficiency.
15. The invention in accordance with claim 14 wherein the spacer bar is made of a single piece construction with flange formed as a continuation of the top, sidewalls and bottom to form respective grooves on each sidewall to receive a portion of respective insert portions so as to maintain them thereon.
16. The invention in accordance with claim 15 wherein the body portion is made of a metal such as aluminum and the insert portions are made of plastic.
17. The invention in accordance with claim 16 wherein the body portion is hollow and contained therein is a desiccant.
18. The invention in accordance with claim 17 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom of the spacer bar, a portion of the insert portions and a portion of each sheet of glass so as to create an insulated glass unit.
19. The invention in accordance with claim 14 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom of the spacer bar, a portion of the insert portion and a portion of each sheet of glass so as to create an insulated glass unit.
20. A spacer bar for use in insulated glass units and the like, comprising: a body portion having a top, bottom and sidewalls; insert member positioned on at least one sidewall extending out and away from said sidewall; and wherein said insert member is intended to prevent contact of the sidewall to glass of the insulated glass unit so as to increase thermal efficiency.
21. The invention in accordance with claim 20 wherein the body portion is made of a single piece construction having an insert member receiving means on at least one sidewall so as to receive and maintain said insert member thereon.
22. The invention in accordance with claim 21 wherein at least one sidewall includes two parallel grooves therein to reserve respective insert members which comprise elongated flange members made of a non-metallic material.
23. The invention in accordance with claim 22 wherein said body portion is made of metal and the insert members are made of a glass filled polycarbonate material.
24. The invention in accordance with claim 23 wherein the sidewall opposite that maintaining the insert members has a portion which tapers towards the bottom.
25. The invention in accordance with claim 24 wherein said insert members and said taper provide space between the sidewalls and glass.
26. The invention in accordance with claim 25 wherein the body portion is hollow and contained therein is a desiccant.
27. The invention in accordance with claim 26 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom of the spacer bar, a portion of an insert member and a portion of each sheet of glass so as to create an insulated glass unit.
28. The invention in accordance with claim 20 which includes at least two sheets of glass, with the spacer bar positioned between said sheets and positioned substantially about the periphery of said sheets, and adhesive means placed along and in contact with the bottom flange of the spacer bar, a portion of an insert member and a portion of each sheet of glass so as to create an insulated glass unit.
PCT/US1995/000993 1994-01-26 1995-01-25 Warm edge spacer bars WO1995020713A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18717394A 1994-01-26 1994-01-26
US08/187,173 1994-01-26

Publications (1)

Publication Number Publication Date
WO1995020713A1 true WO1995020713A1 (en) 1995-08-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074831A1 (en) * 2002-03-06 2003-09-12 Ensinger Kunststofftechnologie Gbr Spacer
ITBO20080539A1 (en) * 2008-09-08 2010-03-09 Alluplast S R L PROFILE SPACER AND INSULATOR FOR GLASS PANEL AND METHOD TO REALIZE IT
US20120151857A1 (en) * 2010-12-17 2012-06-21 Infinite Edge Technologies, Llc Triple pane window spacer, window assembly and methods for manufacturing same

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GB527822A (en) * 1939-04-21 1940-10-16 Stone J & Co Ltd Improvements relating to double windows
US3280523A (en) * 1964-01-08 1966-10-25 Pittsburgh Plate Glass Co Multiple glazing unit
DE2341908A1 (en) * 1973-08-18 1975-03-13 Noris Isolierglas Gmbh Multi-pane sound proof window - with box-shaped spacer forming an air-drying agent container
US4222213A (en) * 1978-11-14 1980-09-16 Gerald Kessler Insulating spacer for double insulated glass
US4268553A (en) * 1978-04-05 1981-05-19 Usm Corporation Method for double glazing units
US4372094A (en) * 1979-06-21 1983-02-08 Giovanni Boschetti Process for simple, rapid and economical transformation of a window with a wooden or metal frame or a single pane frame into a window with a plurality of insulating panes
US4564540A (en) * 1982-12-08 1986-01-14 Davies Lawrence W Pultruded fibreglass spacer for sealed window units
US4850175A (en) * 1985-11-07 1989-07-25 Indal Limited Spacer assembly for multiple glazed unit
US5079054A (en) * 1989-07-03 1992-01-07 Ominiglass Ltd. Moisture impermeable spacer for a sealed window unit
US5088258A (en) * 1990-09-07 1992-02-18 Weather Shield Mfg., Inc. Thermal broken glass spacer
US5313762A (en) * 1991-12-26 1994-05-24 Bayomikas Limited Insulating spacer for creating a thermally insulating bridge

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB527822A (en) * 1939-04-21 1940-10-16 Stone J & Co Ltd Improvements relating to double windows
US3280523A (en) * 1964-01-08 1966-10-25 Pittsburgh Plate Glass Co Multiple glazing unit
DE2341908A1 (en) * 1973-08-18 1975-03-13 Noris Isolierglas Gmbh Multi-pane sound proof window - with box-shaped spacer forming an air-drying agent container
US4268553A (en) * 1978-04-05 1981-05-19 Usm Corporation Method for double glazing units
US4222213A (en) * 1978-11-14 1980-09-16 Gerald Kessler Insulating spacer for double insulated glass
US4372094A (en) * 1979-06-21 1983-02-08 Giovanni Boschetti Process for simple, rapid and economical transformation of a window with a wooden or metal frame or a single pane frame into a window with a plurality of insulating panes
US4564540A (en) * 1982-12-08 1986-01-14 Davies Lawrence W Pultruded fibreglass spacer for sealed window units
US4850175A (en) * 1985-11-07 1989-07-25 Indal Limited Spacer assembly for multiple glazed unit
US5079054A (en) * 1989-07-03 1992-01-07 Ominiglass Ltd. Moisture impermeable spacer for a sealed window unit
US5088258A (en) * 1990-09-07 1992-02-18 Weather Shield Mfg., Inc. Thermal broken glass spacer
US5313762A (en) * 1991-12-26 1994-05-24 Bayomikas Limited Insulating spacer for creating a thermally insulating bridge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074831A1 (en) * 2002-03-06 2003-09-12 Ensinger Kunststofftechnologie Gbr Spacer
ITBO20080539A1 (en) * 2008-09-08 2010-03-09 Alluplast S R L PROFILE SPACER AND INSULATOR FOR GLASS PANEL AND METHOD TO REALIZE IT
WO2010026004A1 (en) * 2008-09-08 2010-03-11 Alluplast S.R.L. Composite spacing profile for a double glazing
US20120151857A1 (en) * 2010-12-17 2012-06-21 Infinite Edge Technologies, Llc Triple pane window spacer, window assembly and methods for manufacturing same
US9228389B2 (en) * 2010-12-17 2016-01-05 Guardian Ig, Llc Triple pane window spacer, window assembly and methods for manufacturing same

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