Browse Prior Art Database

Laser Roughening of Cable Jacket

IP.com Disclosure Number: IPCOM000103498D
Original Publication Date: 1990-Dec-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 1 page(s) / 39K

Publishing Venue

IBM

Related People

Johnson, RA: AUTHOR [+3]

Abstract

Disclosed is a process using 'laser roughening', for achieving mechanical 'strain relief' on an electrical cable whose outer jacket material is not adhered to by conventional adhesives.

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Laser Roughening of Cable Jacket

      Disclosed is a process using 'laser roughening', for achieving
mechanical 'strain relief' on an electrical cable whose outer jacket
material is not adhered to by conventional adhesives.

      A laser is used to generate grooves in the cable outer jacket,
the depth of said grooves being less than the thickness of the outer
jacket.  These grooves can have regular and/or repetitive axial and
angular spacing along the cable outer jacket periphery.  A 'potting
compound' (e.g., epoxy) is then flowed about the jacket and fills the
grooves.  Under conditions of mechanical loading applied to the
cable, the potting compound generates mechanical interference with
the grooves, thereby resisting slip motion of the cable relative to
the potting compound, and achieving 'strain relief'.

      A typical embodiment of this disclosure would involve a cable
or cables having du Pont TEFLON outer jacket insulation and
terminated at an electrical connector.  The outer jackets of said
cables are laser roughened as disclosed, and a 'potting compound' is
subsequently flowed about the cable outer jacket, filling an internal
cavity of the connector housing.  Mechanical loading applied to the
cable is then transmitted from the outer jacket to the potting, and
from the potting to the connector housing, rather than detrimentally
loading the contact termination of said cable.

      Disclosed anonymously.