Woven electrical transmission cable for rapid aircraft repair and method

• US 4,804,806 A
• Filed: 06/15/1987
• Issued: 02/14/1989
• Est. Priority Date: 06/15/1987
• Status: Expired due to Fees

• Current Assignee: Woven Electronics Corporation
• Original Assignee: Woven Electronics Corporation
• Inventors: Motte, Ray T., Orr, Lawrence W. Jr.
• Primary Examiner(s): Nimmo, Morris H.
• Application Number:
  US07/061,406
• Time in Patent Office: 610 Days
• Field of Search: 174/117 M, 174/112, 156/148, 139/425 R
• US Class Current: 174/117.00M
• CPC Class Codes: B64F 5/40 Maintaining or repairing aircraft
• CPC Class Codes: D03D 1/0088 Fabrics having an electronic function
• CPC Class Codes: D03D 11/02 Fabrics formed with pockets, tubes, loops, folds, tucks or flaps fabrics consisting of a single tube D03D3/02
• CPC Class Codes: D10B 2401/16 antistatic; conductive
• CPC Class Codes: G02B 6/4416 Heterogeneous cables
• CPC Class Codes: H01B 7/083 Parallel wires, incorporated in a fabric

Abstract

A woven electrical transmission cable and method for the rapid repair of a defective electrical cable in an aircraft and the like is disclosed. A woven electrical transmission cable (A) for rapid repair includes longitudinal warp anchor cords (B) interwoven with warp and weft yarns (38, 40). The warp and weft yarns are woven in a prescribed pattern in which elongated electrical conductors (36) are bound in individual cells (22, 24, 26, 28, 30, 32). A prescribed number of conductors (36) is included in each cell which may be easily traced and identified at opposing ends of the cable within the individual cells. This insures reliable termination at the ends of the cable. In accordance with the method, cable (A) is bonded to the skin (12a) of an aircraft adjacent access openings (14, 16) to repair a defective cable (11a ) which has been damaged by a bullet or shell through hole (11). Woven electrical repair cable (A) by-passes defective cable (11a) and may be terminated through the access openings. Longitudinal anchor cords (B) are sufficiently absorbent and have sufficient mass and surface to embed in a matrix material (20) for bonding the cable to the exterior aircraft skin. The weave pattern and cellular construction of woven cable (A) provides an aerodynamic profile so that the aircraft may be operated with the repair cable.

Claims

1. A woven electrical transmission cable for the rapid repair of a defective electrical cable inside an aircraft and the like comprising:

a plurality of longitudinal electrical conductors woven in a wrap direction in said cable;

a weft yarn and a plurality of wrap yarns binding said longitudinal electrical conductors in a prescribed weave pattern;

said weave pattern including a number of individual electrical cells with each cell containing a prescribed number of said longitudinal electrical conductors in a manner that said electrical conductors may be readily traced and identified at opposing ends of said cable for accurate termination;

a plurality of longitudinal anchor cords woven in said weave pattern in the warp direction on opposing sides of said cable; and

said longitudinal anchor cords having a larger absorption mass and surface than said warp yarns and said weft yarns for being embedded in a resinous matrix material for bonding said woven cable to the exterior fuselage skin of said aircraft.

2. The cable of claim 1 wherein said weave pattern includes a box weave wherein said warp yarns are woven as warp binders between picks of said weft yarn.

3. The cable of claim 1 including woven marginal tabs woven longitudinally along opposing sides of said cable which includes said warp yarns and weft yarns woven together binding a plurality of said cords without any of said electrical conductors.

4. The cable of claim 3 including colored tracer yarns woven longitudinally along the length of said woven marginal tabs along which said cable may be cut for freeing said electrical conductors from said cable.

5. The cable of claim 1 wherein each of said longitudinal electrical conductors consists of a plurality of individual insulated electrical wires twisted with each other.

6. The cable of claim 1 wherein said conductors are woven in said cells in said weave pattern to provide an aerodynamic profile when bonded to said aircraft.

7. The cable of claim 1 wherein the diameter of said anchor cords and warp yarns have a ratio of about 4:

1.

8. A method of constructing an electrical transmission cable for the rapid repair of a defective electrical cable in an aircraft and the like comprising:

weaving a plurality of longitudinal electrical conductors extending in a warp direction in said cable with a weft yarn and a plurality of warp yarns in a prescribed weave pattern;

weaving said electrical conductors into individual cells by which said electrical conductors may be readily traced and identified at opposed ends of said cable for accurate termination; and

weaving a plurality of longitudinal anchor cords in the warp direction on opposing sides of said cable, said anchor cords having a larger absorption mass and surface than said warp and weft yarns for being embedded in a resinous matrix material for bonding said cable to said aircraft.

9. The method of claim 8 including weaving said cells to include different numbers of said electrical conductors in certain ones of said cells.

10. The method of claim 8 including weaving said warp yarns as warp binders between picks of said weft yarn in a box-weave pattern.

11. The method of claim 8 including weaving marginal tabs on the length of opposing sides of said cable which include said warp yarns and said weft yarns woven with the exclusion of said longitudinal electrical conductors and anchor yarns.

12. The method of claim 10 including weaving colored tracer yarns along the length of said woven marginal tabs along which said marginal tabs may be severed for freeing said conductors from said woven pattern for termination.

13. The method of claim 8 including loosely harnessing said plurality of electrical conductors and each said cell wherein each longitudinal electrical conductor includes a plurality of insulated conductor wires twisted together as a single electrical conductor.

14. the method of claim 8 including weaving said conductors in said cells to provide an aerodynamic cross-section profile facilitating smooth air flow over said cable.