Method and apparatus for covering a multiple wire conductor with

Details Method and apparatus for covering a multiple wire conductor with Method and apparatus for covering a multiple wire conductor with

1980-09-03

1981-12-15

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

156461, 156500, 264236, 264285, 425113, 425114, 425380, 425466, 425467, B29F 310

Patent

active

043059007

ABSTRACT:
A method for continously covering by extrusion, with a cross-linkable or vulcanizable material, a wire conductor around which a separating tape is longitudinally folded with overlapped lips. In the method, upstream of the extrusion step, a force of such a magnitude and orientation as to permit a controlled relative displacement of the overlapped lips, not greater than a pre-determined value, is applied to the separating tape. The extrusion head used in the method of the invention comprises, in the feed cavity for the taped conductor in advance of the male mold, a tubular element having an inner diameter close to that of the taped conductor but not mechanically secured in position within said cavity.

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patent: 3869235 (1975-03-01), Moore
patent: 3944459 (1976-03-01), Skobel

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