Resumes
Resumes
Thomas Siekierka Phones & Addresses
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7600 Knottingham Ln, Downers Grove, IL 60516 (630) 971-2574
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Cicero, IL
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7600 Knottingham Ln, Downers Grove, IL 60516 (630) 632-2586
Work
Position:
Service Occupations
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Publications
Us Patents
Twisted Parallel Cable
View pageUS Patent:
56061510, Feb 25, 1997
Filed:
Mar 17, 1993
Appl. No.:
8/032149
Inventors:
Thomas J. Siekierka - Downers Grove IL
Robert D. Kenny - Oxford OH
Robert D. Kenny - Oxford OH
Assignee:
Belden Wire & Cable Company - Richmond IN
International Classification:
H01B 1102
US Classification:
174113R
Abstract:
This patent describes a cable which is exceptionally suitable for high frequency signal transmission which includes at least two adjoined insulated conductors which are twisted together to form a pair. The pair(s) of adjoined insulated conductors are preferably encased within a thermoplastic, fluorocopolymer, or rubber type material. The embodiment may employ a metallic shield under the encasement. The variation of center to center conductor spacing within a pair as described above should be less than a value equal to about 0. 03 times the statistical average of the center to center conductor spacing. The preferred cable has an average impedance of 90 to 110 ohms with a tolerance of. +-. 5% when measured at high frequencies along any 1000 ft. of cable. Additionally, the two adjoined insulated conductors should have an adhesion strength of no more than 5 lbs. force.
Twisted Pair Cable
View pageUS Patent:
57341265, Mar 31, 1998
Filed:
Jul 8, 1996
Appl. No.:
8/676430
Inventors:
Thomas J. Siekierka - Downers Grove IL
Robert David Kenny - Richmond IN
Robert David Kenny - Richmond IN
Assignee:
Belden Wire & Cable Company - Richmond IN
International Classification:
H01B 1102
US Classification:
174113R
Abstract:
We provide a twisted pair cable which is exceptionally suitable for high frequency signal transmission. One embodiment provides a twisted pair cable having a center-to-center conductor spacing at any point along a 1000 ft. cable that varies. +-. 03 times the average of the center-to-center conductor. Another embodiment provides a twisted pair cable having an impedance of 90 to 110 ohms with a tolerance of. +-. 5% of an average impedance. The preferred twisted pair cable has their dielectrics joined along the entire length thereof. Preferably, the two adjoined insulated conductors have an adhesion strength of between 0. 1 to 5 lbs. force and preferably 0. 25 to 2. 5 lbs. force.