Jack L Knowles, 914920 Encore Dr UNIT 5, Indianapolis, IN 46237

6624358, Sep 23, 2003

Dec 13, 2001

10/023312

James Krabec - Oak Lawn IL
Jack Knowles - Kissimmee FL

Andrew Corporation - Orland Park IL

H01B 1118

174102D, 174106 D

A miniature coaxial cable having an outside diameter of less than 0. 25 inch (6. 3 mm). An inner conductor is surrounded by a foamed polymer dielectric and a continuous corrugated metal outer conductor surrounds the foamed dielectric. The cable of the invention has electrical performance superior to that of prior art cables having braided outer conductors and flexibility superior to that of cables having smooth tubular outer conductors.

6693241, Feb 17, 2004

Apr 24, 2002

10/131747

Bruce Carlson - Chicago IL
Jack L. Knowles - Kissimmee FL
James Krabec - Oak Lawn IL
Leonard Visser - New Lenox IL

Andrew Corporation - Orland Park IL

H01B 1118

174102D

A helical corrugated coaxial cable possesses low cost of manufacture comparable to that of braided shield coaxial cable, electrical performance comparable to solid tubular shielded cable, flexibility of helical and annular corrugated cable, and fluid blockage comparable to annular shielded cable. The cable has an inner conductor surrounded by a foam dielectric insulator. A tubular shield surrounds the dielectric and has helical corrugations penetrating into and compressing the foam dielectric to effectively suppress the formation of fluid migration air gaps or passageways between the shield and the dielectric. The shield is preferably composed of aluminum or aluminum alloy. Alternatively, the shield may be annularly corrugated for improved water blocking performance. The manufacturing process employs high speed welding and multi-lead corrugating operations to reduce cost.

6912777, Jul 5, 2005

Nov 14, 2002

10/294045

Bruce Carlson - Chicago IL, US
Jack L. Knowles - Kissimmee FL, US
James Krabec - Oak Lawn IL, US
Leonard Visser - New Lenox IL, US

Andrew Corporation - Orland Park IL

H01B013/20

29828, 29728, 156 51, 156 79, 156207, 174102 D, 264 464, 264 469

A helical corrugated coaxial cable possesses low cost of manufacture comparable to that of braided shield coaxial cable, electrical performance comparable to solid tubular shielded cable, flexibility of helical and annular corrugated cable, and fluid blockage comparable to annular shielded cable. The cable has an inner conductor surrounded by a foam dielectric insulator. A tubular shield surrounds the dielectric and has helical corrugations penetrating into and compressing the foam dielectric to effectively suppress the formation of fluid migration air gaps or passageways between the shield and the dielectric. The shield is preferably composed of aluminum or aluminum alloy. Alternatively, the shield may be annularly corrugated for improved water blocking performance. The manufacturing process employs high speed welding and multi-lead corrugating operations to reduce cost.