Metallic sheath cable

• US 5,189,719 A
• Filed: 02/05/1991
• Issued: 02/23/1993
• Est. Priority Date: 05/26/1989
• Status: Expired due to Term

• Current Assignee: Coleman Cable Incorporated (Southwire Company)
• Original Assignee: Coleman Cable Systems, Inc. (BorgWarner Incorporated)
• Inventors: Coleman, Allan, Kowalski, Wayne J.
• Primary Examiner(s): NIMMO, MORRIS
• Application Number:
  US07/650,691
• Time in Patent Office: 749 Days
• Field of Search: 174/102 R, 174/102 SP, 174/102 D, 350/96.23
• US Class Current: 385/101
• CPC Class Codes: G02B 6/4435 Corrugated mantle
• CPC Class Codes: H01B 7/08 Flat or ribbon cables
• CPC Class Codes: H01B 7/20 Metal tubes, e.g. lead sheaths

Abstract

A conductor cable includes a tubular metallic sheath for carrying one or more electrical conductors and/or one or more fiber optic elements and which, in various embodiments has a substantially rectangular transverse cross-sectional configuration defined by pairs of parallel sidewalls which enable selective bending of the cable generally about the major and minor axes of the sheath. The parallel sidewalls may have substantially transverse or angularly inclined corrugations formed along their lengths to facilitate bending of the cable in relatively small radius bends about the major and minor axes of the sheath.

Claims

1. An electrical conductor cable comprising an elongated tubular metallic sheath of generally rectangular transverse cross-sectional configuration having a greater major axis dimension than minor axis dimension, and at least one insulated electrical conductor extending longitudinally within said sheath and having a substantially circular transverse cross-sectional configuration, said sheath being defined by first and second pairs of substantially parallel mutually perpendicular sidewalls having respective widths substantially equal to said major and minor axis dimensions and connected along longitudinal marginal edges so as to form an uninterrupted closed internal passage to receive said electrical conductor, said sheath having a substantially seamless wall of uniform thickness about its full periphery, said first pair of sidewalls being generally flat sidewalls, and said second pair of sidewalls being convexly curved sidewalls connected along longitudinal marginal edges to corresponding longitudinal marginal edges of said first pair of sidewalls, said sheath and electrical conductor enabling bending of said cable about said major and minor axes of said sheath.

2. A conductor cable comprising an elongated tubular metallic sheath of generally rectangular transverse cross-sectional configuration having a greater major axis dimension than minor axis dimension, and at least one conductor element extending longitudinally within said sheath, said sheath being defined by first and second pairs of substantially parallel, continuous and mutually perpendicular sidewalls connected along longitudinal marginal edges so as to form an uninterrupted closed internal passage to receive said conductor element, said sheath being of uniform wall thickness about its full periphery, and said sidewalls being corrugated along their longitudinal lengths to enable selective bending of the cable about said major and minor axes.

3. A conductor cable as defined in claim 2 Wherein said conductor element comprises a fiber optic element.

4. A conductor cable as defined in claim 3 including an electrical conductor extending longitudinally within said sheath.

5. A conductor cable as defined in claim 4 wherein said fiber optic element and electrical conductor have insulating layers coaxially therealong, and including means securing said electrical conductor and fiber optic element in substantially parallel relation extending longitudinally within said sheath.

6. A conductor cable as defined in claim 2 wherein said corrugations are disposed generally transverse to the longitudinal axis of said metallic sheath.

7. A conductor cable as defined in claim 3 wherein said first pair of sidewalls are generally flat, and said second pair of sidewalls are convexly curved and connected along longitudinal marginal edges to longitudinal marginal edges of said first pair of sidewalls so as to establish a sheath having a generally oval transverse cross-sectional configuration.

8. A conductor cable as defined in claim 3 wherein said fiber optic element includes an external braided layer disposed coaxially along the length of said fiber optic element.

9. A conductor cable as defined in claim 8 including an insulated electrical conductor element disposed within said tubular sheath and extending longitudinally therein.