Temperature dependent electrically resistive yarn

• US 20030124349A1
• Filed: 11/19/2002
• Published: 07/03/2003
• Est. Priority Date: 09/21/2000
• Status: Abandoned Application

• Current Assignee: Alfred R. Deangelis, Earle Wolynes
• Original Assignee: Alfred R. Deangelis, Earle Wolynes
• Inventors: DeAngelis, Alfred R., Wolynes, Earle
• Application Number:
  US10/299,154
• Publication Number:
  US 20030124349A1
• Time in Patent Office: Days
• US Class Current: 428/373
• CPC Class Codes: D01D 11/06 Coating with spinning solutions or melts
• CPC Class Codes: D01F 1/10 Other agents for modifying properties
• CPC Class Codes: D01F 8/04 from synthetic polymers
• CPC Class Codes: D02G 3/38 Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn; D02G3/32 takes precedence; covering endless core threads with fibres by using open-end spinning techniques D01H4/00
• CPC Class Codes: D02G 3/441 Yarns or threads with antistatic, conductive or radiation-shielding properties electroconductive, anti-static or radiation-shielding filaments D01F1/09, D01F1/106; anti-static fabrics D03D15/533; conducting, insulating or anti-static layers for floor coverings D06N7/0042
• CPC Class Codes: Y10T 428/249924 Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
• CPC Class Codes: Y10T 428/2913 Rod, strand, filament or fiber
• CPC Class Codes: Y10T 428/2924 Composite
• CPC Class Codes: Y10T 428/2927 including structurally defined particulate matter
• CPC Class Codes: Y10T 428/2929 Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
• CPC Class Codes: Y10T 428/2931 Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]

Abstract

A positive variable resistive yarn having a core, a sheath, and an insulator. The sheath includes distinct electrical conductors intermixed within a thermal expansive low conductive matrix. As the temperature of the yarn increases, the resistance of the sheath increases.

Claims

1. A temperature dependent electrically resistance yarn comprising:

a core yarn;

a sheath having a positive temperature coefficient of resistance, said sheath including;

a matrix material

a plurality of distinct electrical conductors intermixed throughout the matrix.