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:
Oct. 15, 1996
Filed:
Apr. 08, 1994
Walter Thompson, Toronto, CA;
Ceeco Machinery Manufacturing Ltd., Concord, CA;
Abstract
Machine for manufacturing uniform impedance communication cables for high frequency use includes a series of staggered double twisting units or heads each of which supports two reels wound with single wire elements or conductors, and a constant tension tape dispenser. The wire elements from the reels as well as the tape from the tape dispenser are simultaneously unwound and guided to the ends of the rotating bows of the twisting units at which points the individual wire elements or conductors are twisted about each other and the tape is applied to the twisted wire pair to fix and maintain the spatial integrity of the twisted wires relative to each other. Each twisting unit rotated at slightly different speeds to assure different lay lengths for each twisted pair. The twisted pairs are guided downstream by a capstan and all of the twisted and taped wire sets are secured to each other by a pre-twisting and taping operation before the composite cable is wound onto a rotating take-up unit. A number of different design modifications are described for producing both simple and complex cable constructions which include twisted pairs, triads and quads.