Electrofusion tape
AssigneeGeorg Fischer Rohrleitungssysteme AG
InventorAndreas Brunner
Life of this patent
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Abstract
Electrofusion tape and method for the production thereof for welding together with plastics pipes in particular for use in a fixed-point fastening, consisting of a jacket element preferably of an electrically insulating plastics material, at least one heating element of electrically conductive plastics material and at least two contact elements for supplying electricity to the heating element, wherein the jacket element and the heating element take the form of tapes, wherein the jacket element surrounds the heating element at least in part, wherein the contact elements are arranged in the mutually opposing marginal regions of the heating element and extend parallel to one another along the heating element.
Claims13
An electrofusion tape for welding plastics pipes comprising a jacket element of an electrically insulating plastics material, at least one heating element of electrically conductive plastics material and at least two contact elements for supplying electricity to the heating element, wherein the jacket element and the heating element take the form of tapes, wherein the jacket element surrounds the heating element at least in part, wherein the contact elements are arranged in mutually opposing marginal regions of the heating element and extend parallel to one another along the heating element wherein the heating element is displaceable neither sideways nor transversely of the longitudinal direction of the tape, the heating element being arranged so as to be displaceable in the jacket element solely in the longitudinal direction of the tape or in the case of coextrusion of the jacket and heating elements, displacement in the longitudinal direction is also prevented, since the two elements fuse together in the contact region, and wherein the jacket element is in the form of a dovetail guide or T-slot guide.
An electrofusion tape for welding plastics pipes comprising:
- a jacket element of an electrically insulating plastics material,
- at least one heating element of electrically conductive plastics material,
- at least two contact elements for supplying electricity to the heating element,
- the jacket element being a plastic tape having an inner side, an outer side and a slot in the inner side, the slot having side walls and defining an opening in the inner side,
- the heating element being a plastic tape and being located in the slot, and
- the slot and heating element being configured to substantially prevent displacement of the heating element sideways and transversely to a longitudinal direction of the tape, while presenting the heating element outside of the jacket toward an inner side of the tape.
Dependencies are inferred from the claim text.