Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1999-02-19
2000-12-26
Kincaid, Kristine
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
H01B 1106
Patent
active
061663263
ABSTRACT:
A metal cable includes at least one center conductor, an internal insulator provided around the center conductor, a tape enclosure formed by a tape having an aluminum foil layer and a plastic layer laminated thereon, and an external insulating coating provided on the outer circumference of the tape enclosure. The width of the tape of the tape enclosure is wider than those of hitherto used tapes and larger than the length of the outer circumference of the internal insulator. In order to form the tape enclosure, the tape is longitudinally wrapped closely around the internal insulator with the aluminum foil layer being inside the plastic layer and with one edge portion of the tape not directly contacting the internal insulator and the aluminum foil portions of both extra edges not participating in wrapping are then forced against each other to form a fin-shaped extra portion which is then folded double and further folded onto that portion of the tape enclosure itself which has been already closely contacting the internal insulator. With the above construction of the tape enclosure, even if the cable is subjected to bending or twisting force, the bound portion of the tape enclosure is surely prevented from being separated, thereby avoiding losses of shielding effect with great reliability.
REFERENCES:
patent: 3439111 (1969-04-01), Miracle et al.
patent: 3662090 (1972-05-01), Grey
patent: 4413656 (1983-11-01), Pithouse
patent: 4477693 (1984-10-01), Krabec et al.
patent: 4533784 (1985-08-01), Olyphant, Jr.
Laid-open Japanese patent publication No. 55-117813, pp. 57-60 (Japanese language) (1980).
Kincaid Kristine
Nakajima Tsushinki Kogyo Co., Ltd.
Nguyen Chau N.
Nishiura Wire Co., Ltd.
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