Claims
- 1. Apparatus comprising:a flexible insert for cable conduits comprising a flexible structure configured to enclose and carry at least one cable, said structure comprising flexible material formed in such a way as to define at least one longitudinal channel configured to enclose and carry a cable; said flexible structure being formed from a single sheet of said flexible material; said flexible material exhibiting an elongation percentage of not greater than about 75 percent at a peak tensile load: and means for pulling a cable into said structure.
- 2. The apparatus set forth in claim 1, wherein said flexible material has a melting temperature of at least about 220 degrees C.
- 3. The apparatus set forth in claim 1, wherein said flexible material is a woven fabric.
- 4. The apparatus set forth in claim 3, wherein said woven fabric includes monofilament yarns.
- 5. The apparatus set forth in claim 4, wherein said monofilament yarns have a denier in the range of 200-1000 denier.
- 6. The apparatus set forth in claim 1, wherein said pulling means extends longitudinally through said channel, and is selected from the group consisting of tape or rope.
- 7. The apparatus set forth in claim 1, wherein a cable extends longitudinally through said channel, said cable having an outer sheath that has a first melting temperature, and said flexible material having a second melting temperature not lower than said first melting temperature.
- 8. The apparatus set forth in claim 1, wherein said flexible material is formed in such a way as to define at least two longitudinal channels, each configured to enclose and carry a cable.
- 9. The apparatus set forth in claim 1, wherein said flexible material has a transversely directed crimp resistance recovery angle within a range of about 50 degrees to about 130 degrees.
- 10. The apparatus set forth in claim 1, wherein said flexible material is a fabric having warp yarns formed of polyester and having fill yarns formed of nylon.
- 11. The apparatus set forth in claim 1, wherein said flexible material exhibits a longitudinal tensile strength of at least about 12.5 pounds per inch of width.
- 12. The apparatus set forth in claim 11, wherein said flexible material has a longitudinal tensile strength within the range of about 12.5 pounds per inch of width to about 300 pounds per inch of width.
- 13. The apparatus set forth in claim 1, wherein said flexible material exhibits an elongation percentage of not greater than about 40 percent at a peak tensile load.
- 14. The apparatus set forth in claim 1, wherein said flexible material exhibits an elongation percentage of not greater than about 25 percent at a peak tensile load.
- 15. The apparatus set forth in claim 1, wherein said structure is resiliently biased toward an open channel configuration and is also readily collapsible in a transverse direction.
- 16. The apparatus set forth in claim 1, wherein said flexible material has a coefficient of friction, based on high density polyethylene on said material with a longitudinal line of action, below about 0.1250.
- 17. The apparatus set forth in claim 1, wherein said flexible material is selected so that a 0.25 inch diameter polypropylene rope will not burn through a test sample of said structure when pulled through said test sample in a pull line duct cutting test at 100 feet per minute and 450 pounds tension for at least 90 seconds.
- 18. The apparatus set forth in claim 1, wherein said flexible material is a fabric having warp and fill yarns formed of polyester.
- 19. Apparatus comprising:a flexible structure configured to enclose and carry at least one cable, said structure comprising flexible textile material formed in such a way as to define at least one longitudinal channel configured to enclose and carry a cable; and a cable extending longitudinally through said channel, said cable having an outer sheath having a first melting temperature, and said flexible material having a second melting temperature not lower than said first melting temperature.
- 20. The apparatus set forth in claim 19, wherein said flexible material has a melting temperature of at least about 220 degrees C.
- 21. The apparatus set forth in claim 19, wherein said flexible material is a woven fabric.
- 22. The apparatus set forth in claim 21, wherein said woven fabric includes monofilament yarns.
- 23. The apparatus set forth in claim 22, wherein said monofilament yarns have a denier in the range of 200-1000 denier.
- 24. The apparatus set forth in claim 19, further including means for pulling a cable into said structure.
- 25. The apparatus set forth in claim 24, wherein said pulling means extends longitudinally through said channel, and is selected from the group consisting of tape or rope.
- 26. The apparatus set forth in claim 19, wherein said flexible material is formed in such a way as to define at least two longitudinal channels, each configured to enclose and carry a cable.
- 27. The apparatus set forth in claim 19, wherein said flexible material has a transversely directed crimp resistance recovery angle within a range of about 50 degrees to about 130 degrees.
- 28. The apparatus set forth in claim 19, wherein said flexible material is a fabric having warp yarns formed of polyester and having fill yarns formed of nylon.
- 29. The apparatus set forth in claim 19, wherein said flexible material exhibits a longitudinal tensile strength of at least about 12.5 pounds per inch of width.
- 30. The apparatus set forth in claim 23, wherein said flexible material has a longitudinal tensile strength within the range of about 12.5 pounds per inch of width to about 300 pounds per inch of width.
- 31. The apparatus set forth in claim 19, wherein said flexible material exhibits an elongation percentage of not greater than about 75 percent at a peak tensile load.
- 32. The apparatus set forth in claim 19, wherein said flexible material exhibits an elongation percentage of not greater than about 40 percent at a peak tensile load.
- 33. The apparatus set forth in claim 19, wherein said flexible material exhibits an elongation percentage of not greater than about 25 percent at a peak tensile load.
- 34. The apparatus set forth in claim 19, wherein said structure is resiliently biased toward an open channel configuration and is also readily collapsible in a transverse direction.
- 35. The apparatus set forth in claim 19, wherein said flexible material has a coefficient of friction, based on high density polyethylene on said material with a longitudinal line of action, below about 0.1250.
- 36. The apparatus set forth in claim 19, wherein said flexible material is selected so that a 0.25 inch diameter polypropylene rope will not burn through a test sample of said structure when pulled through said test sample in a pull line duct cutting test at 100 feet per minute and 450 pounds tension for at least 90 seconds.
- 37. The apparatus set forth in claim 19, wherein said flexible material is a fabric having warp and fill yarns formed of polyester.
RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 10/138,740, filed May 2, 2002, now abandoned, which is a continuation of Ser. No. 09/928,054, filed Aug. 10, 2001, now issued U.S. Pat. No. 6,421,485, which is a continuation of U.S. patent application Ser. No. 09/400,778, filed Sep. 22, 1999, now issued U.S. Pat. No. 6,304,698.
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Continuations (3)
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Number |
Date |
Country |
Parent |
10/138740 |
May 2002 |
US |
Child |
10/354869 |
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US |
Parent |
09/928054 |
Aug 2001 |
US |
Child |
10/138740 |
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US |
Parent |
09/400778 |
Sep 1999 |
US |
Child |
09/928054 |
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US |