WO1997044794A1 - Cable electrique destine, tout particulierement mais non exclusivement, a des chaines stereophoniques haute-fidelite - Google Patents

Cable electrique destine, tout particulierement mais non exclusivement, a des chaines stereophoniques haute-fidelite Download PDF

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Publication number
WO1997044794A1
WO1997044794A1 PCT/EP1997/002447 EP9702447W WO9744794A1 WO 1997044794 A1 WO1997044794 A1 WO 1997044794A1 EP 9702447 W EP9702447 W EP 9702447W WO 9744794 A1 WO9744794 A1 WO 9744794A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical cable
conducting fluid
cable
fluid
sheath
Prior art date
Application number
PCT/EP1997/002447
Other languages
English (en)
Inventor
Edgardo Bianchi
Claudio Angelo Chiappini
Original Assignee
Edgardo Bianchi
Claudio Angelo Chiappini
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Edgardo Bianchi, Claudio Angelo Chiappini filed Critical Edgardo Bianchi
Priority to EP97923884A priority Critical patent/EP0900442A1/fr
Priority to AU29540/97A priority patent/AU2954097A/en
Publication of WO1997044794A1 publication Critical patent/WO1997044794A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics
    • H01B11/14—Continuously inductively loaded cables, e.g. Krarup cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0009—Details relating to the conductive cores
    • H01B7/0027—Liquid conductors

Definitions

  • the present invention relates to an electrical cable, particularly, but not exclusively, for high- fidelity stereo systems.
  • cables comprising conduc ⁇ tors made of precious metals, particularly silver, raises costs to prohibitive levels, due to the cost of the silver itself and the difficulty of drawing it, without eliminating losses and distortions to the extent which the music enthusiast would expect.
  • the problem underlying the present invention is that of making available a cable of the specified type, which has structural and functional characteristics capable of overcoming the aforesaid disadvantages.
  • This problem has been solved with an electrical cable of the specified type, characterized in that it comprises a tubular sheath made from an impermeable insulating material and a conducting fluid disposed in the sheath at a predetermined pressure.
  • Figure 1 is a perspective view of a cable according to the present invention.
  • Figure 2 is a perspective view in partial section and on an enlarged scale of a detail of the cable of Figure 1;
  • Figure 3 is a perspective view of a variant embodi ⁇ ment of a cable according to the present invention.
  • Figure 4 is a perspective view in partial section and on an enlarged scale of a detail of the cable of Figure 3;
  • Figure 5 is a perspective view of a further variant embodiment of a cable according to the present inven ⁇ tion.
  • Figure 6 is a perspective view in partial section and on an enlarged scale of a detail of the cable of Figure 5.
  • the number 1 indicates in a general way an electrical cable for high-fidelity stereo systems.
  • the cable 1 comprises a tubular sheath 2, made from an impermeable insulating material .
  • a conducting fluid 3 which is at a predetermined pressure, substantially equal to atmos ⁇ pheric pressure.
  • the conducting fluid (3) is a substantially creamy fluid, of the medical gel type, for example that used for encephalography, electrocardiography, echography, or similar, or of the industrial gel type, for example that used for ultrasonic measurement.
  • Electrode Cream produced by Crown Graphic NV, Belgium.
  • Sigma Creme produced by Parker Laboratories, Orange, New Jersey, USA.
  • An example of the other type is the fluid known as Idrosonic Coupling Gel.
  • the cable 1 also comprises a solid conductor 4 which consists of a metal wire 5, for example a copper wire, disposed in the said conducting fluid 3.
  • Ferrite 6 with a particle size ranging from 0.01 mm to 1 mm, is dispersed in suspension in a finely divided form in the conducting fluid 3.
  • the finely divided ferrite 6 is present in the conducting fluid 3 in a proportion from 10% to 90% by volume.
  • the number 7 indicates a cable substantially identical to the cable 1, the cables 1 and 7 having their corresponding sheaths integral with each other along corresponding generatrices 8, forming a two-core cable 9, known as a twin-lead.
  • two cables 10 and 11, substantially identical to the cable 1 comprise, in addition to the solid conductor 4, in one case a single solid conductor and in the other case two solid conductors, all indi ⁇ cated by 12, and all covered with an impermeable insu ⁇ lating sheath 13, disposed in the conducting fluid 3 with the formation, in one case, of a two-core cable 14, and, in the other case, of a three-core cable 15.
  • Mul ⁇ tiple-core cables may be provided, having a plurality of solid conductors, all covered with corresponding sheaths, disposed in the conducting fluid 3.
  • the cable according to the present invention has the advantage of transmitting electrical quantities with exceptional accuracy, providing an ongoing listening quality, in particular at voice frequencies. It has a low sensitivity to electromagnetic disturbances, a lower skin effect, a lower mechanical resonance, excellent conduction and reduction of signal losses.
  • a further advantage of the cable according to the invention lies in its constructional simplicity, particularly with respect to cables with silver conduc ⁇ tors .
  • the cable acco ⁇ rding to the invention has the important advantage of lightness.

Landscapes

  • Communication Cables (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention a trait à un câble électrique destiné, tout particulièrement mais non exclusivement, à des chaînes stéréophoniques haute-fidélité, et transmettant l'énergie électrique avec une fiabilité exceptionnelle. Ce câble comporte une gaine tubulaire (2) faite dans un matériau imperméable et isolant ainsi qu'un fluide conducteur (3) placé dans la gaine (2) et se trouvant quasiment à la pression atmosphérique.
PCT/EP1997/002447 1996-05-22 1997-05-13 Cable electrique destine, tout particulierement mais non exclusivement, a des chaines stereophoniques haute-fidelite WO1997044794A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97923884A EP0900442A1 (fr) 1996-05-22 1997-05-13 Cable electrique destine, tout particulierement mais non exclusivement, a des chaines stereophoniques haute-fidelite
AU29540/97A AU2954097A (en) 1996-05-22 1997-05-13 Electrical cable, particularly, but not exclusively, for high-fidelity stereo systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI96A001034 1996-05-22
IT96MI001034A IT1283058B1 (it) 1996-05-22 1996-05-22 Cavo elettrico, particolarmente ma non esclusivamente per impianti stereofonici ad alta fedelta'

Publications (1)

Publication Number Publication Date
WO1997044794A1 true WO1997044794A1 (fr) 1997-11-27

Family

ID=11374304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/002447 WO1997044794A1 (fr) 1996-05-22 1997-05-13 Cable electrique destine, tout particulierement mais non exclusivement, a des chaines stereophoniques haute-fidelite

Country Status (4)

Country Link
EP (1) EP0900442A1 (fr)
AU (1) AU2954097A (fr)
IT (1) IT1283058B1 (fr)
WO (1) WO1997044794A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765069A1 (fr) * 1997-06-24 1998-12-24 Electricite De France Dispositif de protection d'un circuit electrique contre les microdecharges d'interface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1112517A (fr) * 1954-10-11 1956-03-15 Procédé de fabrication de conducteurs électriques isolés et conducteurs obtenus par ce procédé
FR1219476A (fr) * 1959-03-26 1960-05-18 Perfectionnements aux conducteurs de liaisons souples
DE1590989A1 (de) * 1964-09-26 1970-05-06 Wallis Neil Rudolf Verfahren und Vorrichtung fuer das Zufuehren elektrischen Stroms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1112517A (fr) * 1954-10-11 1956-03-15 Procédé de fabrication de conducteurs électriques isolés et conducteurs obtenus par ce procédé
FR1219476A (fr) * 1959-03-26 1960-05-18 Perfectionnements aux conducteurs de liaisons souples
DE1590989A1 (de) * 1964-09-26 1970-05-06 Wallis Neil Rudolf Verfahren und Vorrichtung fuer das Zufuehren elektrischen Stroms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765069A1 (fr) * 1997-06-24 1998-12-24 Electricite De France Dispositif de protection d'un circuit electrique contre les microdecharges d'interface
WO1998059531A1 (fr) * 1997-06-24 1998-12-30 Electricite De France (Service National) Dispositif de protection d'un circuit electrique contre les microdecharges d'interface

Also Published As

Publication number Publication date
ITMI961034A1 (it) 1997-11-22
IT1283058B1 (it) 1998-04-07
ITMI961034A0 (fr) 1996-05-22
AU2954097A (en) 1997-12-09
EP0900442A1 (fr) 1999-03-10

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