The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2005
Filed:
Nov. 14, 2002
Bruce Carlson, Chicago, IL (US);
Jack L. Knowles, Kissimmee, FL (US);
James Krabec, Oak Lawn, IL (US);
Leonard Visser, New Lenox, IL (US);
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 (US);
Abstract
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.