Coaxial cable including tubular bimetallic inner layer with bevelled edge joint and associated methods
AssigneeCommScope, Inc. of North Carolina
InventorsAlan N. Moe, Larry W. Nelson
Life of this patent
Estimating the term…
Abstract
A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material layer therebetween. The inner conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto with the inner metal layer having a lower melting point than the outer layer. At least one of the opposing longitudinal edges of the tubular bimetallic layer may be at least partially bevelled. In addition, the longitudinal seam may include a welded joint between at least portions of the opposing longitudinal edges.
Claims22
A coaxial cable comprising:
- an inner conductor, an outer conductor and a dielectric material layer therebetween;
- said inner conductor comprising a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam;
- said tubular bimetallic layer comprising an inner metal layer and an outer metal layer bonded thereto with said inner metal layer having a lower melting temperature than said outer metal layer;
- at least one of said opposing longitudinal edges of said tubular bimetallic layer being at least partially beveled;
- the longitudinal seam comprising a welded joint between at least portions of said opposing longitudinal edges.
A coaxial cable comprising:
- an inner conductor, an outer conductor and a dielectric material layer therebetween;
- said inner conductor comprising a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam;
- said tubular bimetallic layer comprising an inner aluminum layer and an outer copper layer bonded thereto;
- each of said opposing longitudinal edges of said tubular bimetallic layer being at least partially bevelled at the longitudinal seam;
- the longitudinal seam comprising a welded joint between at least portions of said inner aluminum layer.
A method for making a coaxial cable comprising an inner conductor, an outer conductor and a dielectric material layer therebetween, the method comprising:
- forming the inner conductor by at least
- forming a bimetallic strip into a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam, the tubular bimetallic layer comprising an inner metal layer and an outer metal layer bonded thereto with the inner metal layer having a lower melting temperature than the outer metal layer, and at least one of the opposing longitudinal edges of the tubular bimetallic layer being at least partially bevelled,
- welding the longitudinal seam to form a welded joint between at least portions of the opposing longitudinal edges;
- forming the dielectric material layer surrounding the inner conductor;
- and
- forming the outer conductor surrounding the dielectric material layer.
Dependencies are inferred from the claim text.