Heat-recoverable article
AssigneeRaychem Corporation
InventorRichard S. Skipper
Life of this patent
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Abstract
Self-supporting helical heat-recoverable material provides easily installed insulating covering for wires and cables. The helical arrangement may be made by differential recovery of a two-layered tape of the heat-recoverable material around a cooled mandrel such that the inner tape layer recovers more than the outer. The inner layer may also serve as an adhesive layer or may carry an adhesive coating.
Claims9
An article comprising a strip of heat-recoverable polymeric material pre-formed into a self-supporting, self-locating helical configuration capable of being wrapped around a substrate, wherein the strip is pre-formed into a helical configuration having overlapping windings, each having a stepped formation such that each successive winding fits into the step of the previous winding.
Dependencies are inferred from the claim text.