KR900015389A - Heat-shrinkable repair covers for pressurized cables - Google Patents

Abstract

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Description

Heat-shrinkable repair covers for pressurized cables

Since this is an open matter, no full text was included.

1 is a view showing a cover in the open state,

2 is a view showing a cover in a closed state,

3 shows a first embodiment of a wavy insert,

4 shows a second embodiment of a wavy insert,

5 shows a third embodiment of a wavy insert.

Claims (33)

A heat shrinkable wrap consisting of a corrugated plastic layer inserted between two layers of plastic material and having grooved protrusions along the longitudinal edges clamped by the flexible metal channel so that the longitudinal edges are held closely during heat recovery. Around live. The heat shrinkable wrap around sleeve of claim 1 wherein the corrugated plastic is a polyolefin. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the spacing between corrugated tops is in the range of 0.25 mm-30 mm. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats extend parallel to each other. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats extend 90 ° with respect to the longitudinal edge of the pleated polyolefin sheet. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats extend at an angle with respect to the longitudinal edge of the pleated polyolefin sheet. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats extend across the entire surface of the pleated polyolefin sheet with grooved protrusions along the longitudinal edges referred to in claim 1. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the corrugation is waved from the top surface of the polyolefin sheet to the bottom surface followed by a trough immediately following the crest. 3. The heat shrinkable wrap around sleeve of claim 2 wherein there is a step between the crepe of the pleats and the tropro. 3. The heat shrinkable wrap around sleeve of claim 2 wherein there is a transverse separation between portions of the pleats. 3. The heat shrinkable wrap around sleeve of claim 2 wherein there is a transverse separation between all of the pleats. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats are triangular in cross section perpendicular to the longitudinal direction of the pleats. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats are parabolic in cross section perpendicular to the longitudinal direction of the pleats. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleat has a circular cross section perpendicular to the longitudinal direction of the pleat. The heat shrinkable wrap around sleeve according to claim 2, wherein the pleats are a combination of two or more of the pleats of the cross section perpendicular to the longitudinal direction of the pleats. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleat has an irregular shape in cross section perpendicular to the longitudinal direction of the pleat. 17. The heat shrinkable wrap around sleeve of claim 1 wherein the corrugated polyolefin layer is crosslinked. 18. The heat shrinkable wrap around sleeve of claim 1 wherein the corrugated polyolefin layer is heat shrinkable. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats of the polyolefin layer are completely filled with a uniform polymeric material to form a laminate. 3. The heat shrinkable wrap around sleeve of claim 2 wherein the pleats of the polyolefin layer are partially filled with a uniform polymeric material to form a laminate. 21. The heat shrinkable material of claim 19 or 20 wherein the uniform polymeric material used to fill or partially fill the pleats of the intercalation layer of pleated polyolefin has an elongation of interruption substantially equivalent to that of the pleated polyolefin. Wraparound sleeves. 22. The heat shrinkable wraparound sleeve according to claim 19 or 21, wherein the uniform polymer material used to fill or partially fill the pleats of the intercalating layer of pleated polyolefin is crosslinked after lamination in the pleats. Eve. 23. The heat shrinkable wrap around sleeve of claim 22 wherein the uniform polymeric material is heat shrinkable. 24. The heat shrinkable wrap around sleeve of claim 23 wherein the heat shrinkable wrap around sleeve is a wrap around sleeve. 25. The heat shrinkable wrap around sleeve of claim 1 wherein the heat recoverable wrap around sleeve has a heat-reactive adhesive layer on its inner surface. 26. The thermally recoverable wrap around sleeve of claim 1, wherein the thermally recoverable wrap around sleeve comprises a temperature indicating paint on the inner surface that changes color during the activation of the inner coating of the heating and reactivating adhesive that restores the sleeve. A heat shrinkable wrap around sleeve having. 27. A junction between elongated bases when surrounded by a wrap around sleeve according to claims 1 and 24 to 26. 28. The junction of claim 27 wherein the base is an electrical cable. 28. The junction of claim 27 wherein the base is a communication cable. The splice of claim 27, wherein the cables are pressable cables. 27. A method of protecting a base by thermally shrinking the heat shrinkable wrap around sleeve according to claims 1 and 24 to 26 over an elongated base. 32. The heat shrinkable sleeve of claim 31, wherein the heat shrinkable sleeve is positioned around the base and is wound around a liner configured to make a gradual transition to a smaller diameter cable entering or exiting the connection from the maximum connection diameter. How to. 32. The method of claim 31 wherein the base is a forked cable having a plurality of cables that enter and exit the connection. ※ Note: This is to be disclosed based on the first application.