Patent ID: 6273977
Filing Date: 2001-08-14
Classification: H01B

Abstract:
A method for making high frequency cable of at least two electrical conductors with each conductor insulated by thermoplastic material which concentrically surrounds each respective conductor comprising:(a) providing a first uninsulated electrical conductor;(b) providing a second uninsulated electrical conductor;(c) moving both conductors into an extruder means which coats each conductor separately and independently with a heated thermoplastic electrical insulation material, the extruder means maintains the concentricity of each conductor with respect to the surrounding thermoplastic insulation and in a spaced relationship from the adjacent insulated conductor;(d) moving the conductors which have been coated with heated thermoplastic material from the extruder means and in a spaced relationship so as to permit the thermoplastic material on each conductor to set independent and separate of the other conductor; and(e) bringing the conductors into touching contact after the thermoplastic material has set while using only residual heat from the extruding means, whereby the coated conductors are fused and joined together by the heated thermoplastic materials surrounding each conductor, the set is achieved whenever the thermoplastic retains its concentricity upon contact with adjacent thermoplastic of the adjacent conductor while retaining tack.