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EP0276974A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Highly flexible, shielded, multi-conductor electrical cable

Assignee: Whitaker LLC
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Filing: 1988-01-26
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Granted: —
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Expires: 2008-01-26
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Abstract

Abstract A highly flexible, shielded electrical cable (10) having exceptional pliability and limpness is provided for connection to devices such as hand-held medical instruments to minimize the resistance to movement of such devices imposed by such cable. The normal stiffness of shielded cables caused by a braided wire shield is minimized by eliminating the frictional resistance to relative movement between the shield (20) and the dielectric covering (18) of the conductor assembly (12) inside the shield. This is accomplished by loosely braiding the shield (20) around the dielectric covering (18) so as to impose no transverseley inward force on the dielectric covering. Preferably, a clearance (22) is formed between the shield (20) and the dielectric covering (18) and the density of the braided shield (20) is maximized to render it self-supporting. An outer dielectric jacket (24) of the cable (10) likewise loosely encircles the braided shield (20) to eliminate frictional resistance to relative movement between the shield (20) and jacket (24).

Inventors

  • 👤 Ronald A. Olson
  • 👤 Arthur G. Buck

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 08:53
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/04; H01B7/041; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1033; H01B11/18; H01B11/20

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 80 words
A highly flexible, shielded, elongate electrical cable comprising: flexible conductor means for conducting electrical current; flexible shield means for conducting electrical current, said shield means comprising braided strands of wire encircling said conductor means and electrically insulated therefrom; flexible material immediately underlying said shield means characterized in that said braided strands of wire loosely encircle said material immediately underlying said shield means and apply substantially no force in a transversely inward direction against said material immediately underlying said shield means.
Claim 2
Dependent Claim 80 words
A highly flexible, shielded, elongate electrical cable comprising: flexible conductor means for conducting electrical current; flexible shield means for conducting electrical current, said shield means comprising braided strands of wire encircling said conductor means and electrically insulated therefrom; flexible material immediately underlying said shield means characterized in that said braided strands of wire loosely encircle said material immediately underlying said shield means and apply substantially no force in a transversely inward direction against said material immediately underlying said shield means.
Claim 3
Dependent Claim 23 words
The cable of claim 1, further including means defining a clearance between said braided strands and said material immediately underlying said shield means.
Claim 4
Dependent Claim 24 words
The cable of claim 1 wherein said braided strands of wire cover. at least about 95% of said material immediately underlying said shield means.
Claim 5
Dependent Claim 45 words
The cable of claim 1, further including an exterior flexible dielectric jacket and material immediately underlying said jacket, said jacket loosely encircling said material immediately underlying said jacket and applying substantially no force in a trans­versely inward direction against said material immediately underlying said jacket.
Claim 6
Dependent Claim 21 words
The cable of claim 4, further including means defining a clearance between said jacket and said material immediately underlying said jacket.
Claim 7
Independent Claim 60 words
A method of making a highly flexible, shielded electrical cable comprising providing an elongate, flexible, electrical conductor assembly having an outer surface of flexible dielectric material; characterized by braiding a flexible shield of electrically conductive wire around said conductor assembly so that said wire applies substantially no force in a transversely inward direction against the material immediately underlying said shield.
Claim 8
Independent Claim 60 words
A method of making a highly flexible, shielded electrical cable comprising providing an elongate, flexible, electrical conductor assembly having an outer surface of flexible dielectric material; characterized by braiding a flexible shield of electrically conductive wire around said conductor assembly so that said wire applies substantially no force in a transversely inward direction against the material immediately underlying said shield.
Claim 9
Dependent Claim 26 words
The method of claim 6, further including braiding said shield so as to form a clearance between said shield and the material immediately underlying said shield.
Claim 10
Dependent Claim 25 words
The method of claim 6, further including braiding said shield so as to cover at least about 95% of the material immediately underlying said shield.
Claim 11
Dependent Claim 36 words
The method of claim 6, further including loosely encircling said shield with a flexible dielectric jacket so that said jacket applies substan­tially no force in a transversely inward direction against the material immediately underlying said jacket.
Claim 12
Dependent Claim 20 words
The method of claim 9, further including forming a clearance between said jacket and the material immediately underlying said jacket.

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