Spacer

• US 5,460,862 A
• Filed: 12/10/1993
• Issued: 10/24/1995
• Est. Priority Date: 12/10/1992
• Status: Expired due to Fees

• Current Assignee: Thermix GmbH Isolierungssysteme Fur Verglasungen
• Original Assignee: Thermix GmbH Isolierungssysteme Fur Verglasungen
• Inventors: Roller, Ulrike
• Primary Examiner(s): Loney, Donald J.
• Application Number:
  US08/165,036
• Time in Patent Office: 683 Days
• Field of Search: 428/34.1, 428/34, 428/35.7, 428/35.8, 428/36.3, 428/36.5, 428/36.6, 428/36.7, 428/36.91, 428/107, 428/131, 428/137, 428/141, 428/156, 428/167, 428/172, 428/182 , 428/192, 428/364, 428/398, 52/172, 52/789, 52/171.3, 52/790, 156/109
• US Class Current: 428/35.7
• CPC Class Codes: E06B 3/66319 of rubber, plastics or similar materials
• CPC Class Codes: Y10T 428/1352 Polymer or resin containing [i.e., natural or synthetic]
• CPC Class Codes: Y10T 428/1355 Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
• CPC Class Codes: Y10T 428/1369 Fiber or fibers wound around each other or into a self-sustaining shape [e.g., yarn, braid, fibers shaped around a core, etc.]
• CPC Class Codes: Y10T 428/1376 Foam or porous material containing
• CPC Class Codes: Y10T 428/1379 Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
• CPC Class Codes: Y10T 428/24355 Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
• CPC Class Codes: Y10T 428/2457 Parallel ribs and/or grooves
• CPC Class Codes: Y10T 428/24694 Parallel corrugations
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/2975 Tubular or cellular

Abstract

A spacer made of plastic material for building components, having at least two spaced apart panes that are fixedly connected to one another, consists of a hollow profiled member that is positioned between the panes. The hollow profiled member has sidewalls facing the panes, an interior wall facing the interior chamber between the panes, and an exterior wall facing outwardly. At least one first insert for inhibiting water vapor diffusion is provided. The at least one first insert is embedded in the sidewalls and the exterior wall. A second insert is embedded in the interior wall and is preferably of a material that inhibits water vapor diffusion, preferably a thin-walled foil made of metal or plastic.

Claims

1. A spacer made of plastic material for building components comprising at least two spaced apart panes that are fixedly connected to one another, said spacer comprising:

a hollow profiled member to be positioned between the panes, said hollow profiled member having sidewalls facing the panes, an interior wall facing an interior chamber between the panes, and an exterior wall facing outwardly;

at least one first insert for inhibiting water vapor diffusion, said at least one first insert embedded in said sidewalls and said exterior wall; and

a second insert embedded in said interior wall.

2. A spacer according to claim 1, wherein said second insert is comprised of a material that inhibits water vapor diffusion.

3. A spacer according to claim 2, wherein said second insert is centrally positioned within said interior wall.

4. A spacer according to claim 1, wherein said second insert is a thin-walled foil.

5. A spacer according to claim 4, wherein said foil is pretreated.

6. A spacer according to claim 4, wherein said foil is a metal foil.

7. A spacer according to claim 4, wherein said foil is a plastic foil.

8. A spacer according to claim 1, wherein said second insert has a substantially rectangular cross-section.

9. A spacer according to claim 1, wherein said second insert has a thickness of less than 0.5 mm.

10. A spacer according to claim 1, wherein said second insert extends substantially over an entire width of said interior wall.

11. A spacer according to claim 1, wherein said second insert is in the form of at least one reinforcement member extending in an axial direction of said hollow profiled member.

12. A spacer according to claim 11, wherein said reinforcement member is selected from the group consisting of a wire, a cable, and a pipe.

13. A spacer according to claim 12, wherein said reinforcement member is made of plastic.

14. A spacer according to claim 12, wherein said reinforcement member is made of metal.

15. A spacer according to claim 12, wherein said cable is made of stranded wire that is twisted.

16. A spacer according to claim 11, wherein said reinforcement member is made of a spirally wound wire made of a material selected from the group consisting of steel and aluminum.

17. A spacer according to claim 11, wherein said reinforcement member is centrally positioned within said interior wall.

18. A spacer according to claim 11, further comprising at least one partition for dividing an interior of said hollow profiled member into compartments, wherein said reinforcement member is positioned in an area where said at least one partition and said interior wall meet.

19. A spacer according to claim 1, wherein at least one of said sidewalls has anchoring elements on an outwardly facing surface for engaging a sealing material.

20. A spacer according to claim 19, wherein said anchoring elements are selected from at least one of the elements of the group consisting of:

reinforcements extending laterally from said hollow profiled member;

first projections having undercuts and extending from said hollow profiled member toward the panes;

second projections extending into said interior chamber;

undercuts in said sidewalls;

corrugations; and

grooves.

21. A spacer according to claim 20, wherein said second projections have undercuts.

22. A spacer according to claim 20, wherein said exterior wall has corrugations to provide anchoring.

23. A spacer according to claim 20, wherein said grooves extend in a longitudinal direction of said hollow profiled member.

24. A spacer according to claim 1, wherein said hollow profiled member has an interior filled with a drying agent and wherein said interior wall has at least one throughbore.

25. A spacer according to claim 1, wherein said spacer is made of a material selected from the group consisting of acrylonitrile-styrene-acrylic ester, polycarbonate blend, and foamed polycarbonate.