Formable fabric

• US 5,074,129 A
• Filed: 12/26/1989
• Issued: 12/24/1991
• Est. Priority Date: 12/26/1989
• Status: Expired due to Term

• Current Assignee: Novtex Corporation
• Original Assignee: Novtex Corporation
• Inventors: Matthew, John B.
• Primary Examiner(s): Schroeder, Werner H.
• Assistant Examiner(s): CALVERT, JOHN JAMES
• Application Number:
  US07/456,540
• Time in Patent Office: 728 Days
• Field of Search: 66/193, 66/192
• US Class Current: 66/192
• CPC Class Codes: D04B 21/12 characterised by thread material
• CPC Class Codes: D10B 2401/062 stiff, shape retention
• CPC Class Codes: D10B 2403/02412 including several arrays of unbent yarn, e.g. multiaxial fabrics
• CPC Class Codes: D10B 2403/0311 Small thickness fabric, e.g. ribbons, tapes or straps
• CPC Class Codes: D10B 2505/02 Reinforcing materials; Prepregs

Abstract

A formable, laterally stretchable fabric which retains its shape includes a plurality of laterally spaced longitudinally extending soft, formable metallic wires comprising the warps and a weft pattern of yarns which act to connect adjacent warps at staggered intervals. The knitted fabric is stretchable in the weft direction and the soft wires are caused to bend at or near the weft connecting points, thus holding the fabric in its reformed and/or stretched condition.

Claims

1. A permanently formable knitted fabric comprising:

a plurality of warps, soft permanently formable elements running substantially parallel to said warps, said warps comprising chain stitches engaging said soft permanently formable elements, and weft yarns interconnecting adjacent warps at connecting points defined by chain stitches at alternating intervals, and wherein said soft permanently formable elements are captured by at least two consecutive chain stitches of respective warps between said weft yarn interconnecting points at said alternating intervals, such that said fabric is formably stretchable in the weft direction with said formable elements being permanently deformed at and between the weft connecting points thereby permanently holding the fabric in a substantially deformed condition.

2. The formable knitted fabric as claimed in claim 1, wherein said permanently formable elements comprise soft metallic wires and said warps further comprise fiberglass high strength reinforcing yarns, and said weft yarns connect adjacent warps at said alternating intervals such that when the fabric is stretched in the weft direction said wires are deformed at and between the weft connecting points thus permanently holding said fiberglass reinforcing warp yarns of the fabric in a substantially deformed condition.

3. A formable knitted fabric according to claim 2, wherein said soft wires are formed of one material of the group consisting of copper, aluminum, soft steel and soft stainless steel.

4. The formable knitted fabric as claimed in claim 1, wherein said soft, formable elements comprise soft, formable metallic wires.

5. A formable knitted fabric as claimed in claim 4, wherein said soft, formable metallic wires are formed of one material of the group consisting of copper, aluminum, soft steel and soft stainless steel.