Textile or fabric and method of production

• US 4,814,585 A
• Filed: 02/13/1987
• Issued: 03/21/1989
• Est. Priority Date: 06/15/1985
• Status: Expired due to Fees

• Current Assignee: Klein, Dan
• Original Assignee: Klein, Dan
• Inventors: Klein, Dan
• Primary Examiner(s): Goldberg, E. A.
• Assistant Examiner(s): LATEEF, MARVIN M
• Application Number:
  US07/031,017
• Time in Patent Office: 767 Days
• Field of Search: 219/545, 219/544, 219/546, 219/212, 219/213, 219/548, 219/549
• US Class Current: 219/545
• CPC Class Codes: D04B 21/08 characterised by thread material
• CPC Class Codes: D04B 23/12 with provision for incorporating unlooped wefts extending from selvedge to selvedge
• CPC Class Codes: D10B 2401/16 antistatic; conductive
• CPC Class Codes: H05B 2203/003 using serpentine layout
• CPC Class Codes: H05B 2203/014 Heaters using resistive wires or cables not provided for in H05B3/54
• CPC Class Codes: H05B 2203/017 Manufacturing methods or apparatus for heaters
• CPC Class Codes: H05B 2203/026 Heaters specially adapted for floor heating
• CPC Class Codes: H05B 2203/029 Heaters specially adapted for seat warmers
• CPC Class Codes: H05B 3/342 heaters used in textiles

Abstract

A thin-walled heating system is provided which has only a minimal thickness and must be easy to dismantle. For this a textile fabric is envisaged with a heating circuit arranged therein, whereby the heating circuit (2) runs entirely inside the fabric (20), with the exception of the electrical connection end-pieces (22, 24). The surface heating textile material for heating blankets, floors of rooms and the like has a sheet of fabric, an electrical heat-producing conductor wire embedded in the sheet of fabric and extending in a series of uninterrupted undulations from its first end portion located at a first end portion of the sheet of fabric to its second end portion located at a second end portion of the sheet of fabric, a first electrical contact lead at the first end portion of the conductor wire, a second electrical contact lead at the second end portion of the conductor wire, and fabric portions between each undulation of the conductor wire allowing for unimpeded cutting of the fabric (20) without severing the conductor wire and disrupting the flow of electric current through the conductor wire from the first end portion of the conductor wire to the second end portion of the conductor wire creating a first subsection (32) of the fabric connected to a second subsection (30) of the fabric by the conductor wire (2), and allowing for the second subsection (30) of fabric to be angled and properly aligned with respect to the first subsection (32) of the fabric to conform with the contours with the room, as required.

Claims

1. A surface heating textile material for heating floors of rooms and the like comprising:

a sheet of fabric having a first end portion, a second end portion, a first side portion, and a second side portion,

an electrical heat-producing conductor wire embedded in the sheet of fabric,

the conductor wire extending in a series of uninterrupted undulations from its first end portion located at the first end portion of the sheet of fabric to its second end portion located at the second end portion of the sheet of fabric,

a first electrical contact lead at the first end portion of the conductor wire,

a second electrical contact lead at the second end portion of the conductor wire, and

fabric portions between each undulation of the conductor wire allowing for unimpeded cutting of the fabric without severing the conductor wire and disrupting the flow of electric current through the conductor wire from the first end portion of the conductor wire to the second end portion of the conductor wire creating a first subsection (32) of the fabric connected to a second subsection (30) of the fabric by the conductor wire (2), and allowing for the second subsection (30) of fabric to be angled and properly aligned with respect to the first subsection (32) of the fabric to conform with the contours with the room, as required.

2. The textile material according to claim 1, wherein the fabric is provided with a covering (34) on at least one side which extends beyond the fabric (20) on at least two opposing edges (20a-d).

3. The invention of claim 1, wherein the conductor (2) runs between and along at least two opposing edges (20a-d) of the fabric (20) with the exception of the electrical contact leads (22, 24) and is provided with a covering (34) on at least one side, which extends beyond the edges (20a-d) of the fabric (20), at least on these two sides.

4. The invention of claim 1, wherein the conductor circuit (2) in the fabric (20) has a sinuous pattern.

5. The invention of claim 1, wherein the electrical contact leads (22, 24) of the conductor circuit (2) are arranged on opposing edges of the fabric (20).

6. The textile material according to claims 1 to 5, wherein the conductor (2) comprises an electrically conductive wire and a coating of heat-resistant and electrically insulating material.

7. The textile material according to claim 6, wherein the conductor is a stranded cable of copper alloy.

8. The invention of claim 6, wherein the insulating coating consists of fiberglass, asbestos, silicon rubber, or polytetrafluoroethylene alone or in combination.

9. invention of claim 1, the fabric portions between each undulation of the conductor being 2 to 6 centimeters in length.

10. The invention of claim 1, wherein the conductor (2) between the electrical contact leads (22, 24) is one singular circuit.

11. The invention of claim 2, wherein the covering (34) is a laminate.

12. The invention according to claim 11, wherein the laminate comprises a non-woven fabric, felt, or the like.

13. The invention of claim 11, wherein the laminate is a foamed material.

14. The invention of claim 1, wherein the fabric is provided with a covering (34) on both sides.

15. The invention of claim 2, wherein the cover is at least partially provided with an adhesive in the region (36) which extends beyond the fabric (20).

16. The invention of claim 1, wherein the fabric is provided with a perforation which runs from one edge (20a-d) between the end portions of the conductor (2) and stops shortly before a portion connecting the first sub-section of the fabric to the second sub-section of the fabric.

18. A method of installing the surface heating textile material for heating floors of rooms and like according to any of claims 1 to 16 comprising:

cutting transversely across the fabric at the desired fabric portion without severing the conductor wire creating a first subsection (32) of the fabric above the cut connected to a second subsection (30) of the fabric below the cut by the conductor wire, and

arranging the second subsection (30) of the fabric below the cut at the desired angle to conform with the contours of the room.

19. The method according to claim 18, including revolving the second subsection (30) below the cut by 180 degrees and laying it next to the fabric subsection (32) above the cut.

20. The method according to claim 19, including

revolving the subsection (32) below the cut until the first electrical contact lead of the conductor wire is arranged directly next to the second electrical contact lead of the conductor wire.

17. A method of producing a textile fabric comprising a conductor on a Raschel machine with a row of vertical reciprocating bearded needles (11) and several rows of thread guides (13), which oscillate along the bearded needle row and guide threads (14) to the bearded needles (11), whereby:

(a) the conductor to be introduced is spanned along the threads form a first predetermined point to a second predetermined point within the width of the material to be knitted,

(b) while the bearded needles (11) are in their lowest position,

(c) whereby the conductor is spanned at high speed while the speed of the machine is greatly reduced or completely stopped,

(d) subsequently the knitting operation is continued at normal speed as soon as the conductor is spanned,

(e) thereafter a certain length of the fabric is produced corresponding to the predetermined spacing between two subsequent conductor sections,

(f) before the rotary speed of the machine motor is reduced and the conductor is spanned form the second point back to the first point,

(g) whereafter the process is repeated from the beginning.

21. A surface heating textile material for heating floors of rooms and the like comprising:

a sheet of fabric having a first end portion, a second end portion, a first side portion, and a second side portion,

an electrical heat-producing conductor wire embedded in the sheet of fabric,

the conductor wire extending in a series of uninterrupted undulations from its first end portion located at the first end portion of the sheet of fabric to its second end portion located at the second end portion of the sheet of fabric,

a first electrical contact lead at the first end portion of the conductor wire,

a second electrical contact lead at the second end portion of the conductor wire,

fabric portions between each undulation of the conductor wire allowing for unimpeded cutting of the fabric without severing the conductor wire and disrupting the flow of electric current through the conductor wire from the first end portion of the conductor wire to the second end portion of the conductor wire creating a first subsection (32) of the fabric above the cut connected to a second subsection (30) of the fabric below the cut by the conductor wire, and allowing for the second subsection (30) of fabric to be angled and properly aligned with respect to the first subsection (32) of the fabric above the cut to conform with the contours with the room, as required,

the fabric being provided with a covering (34) on at least one side which extends beyond the fabric (20) on at least two opposing edges (20a-d),

the conductor (2) running between and along at least two opposing edges (20a-d) of the fabric (20) with the exception of the electrical contact leads (22,

     24) and being provided with a covering (34) on at least one side, which extends beyond the edges (20a-d) of the fabric (20), at least on these two sides,

the conductor circuit (2) in the fabric (20) having a sinuous pattern,

the electrical contact leads (22,

     24) of the conductor circuit (2) being arranged on opposing edges of the fabric (20),

the conductor (2) comprising an electrically conductive wire and a coating of heat-resistant and electrically insulating material, the conductor being a stranded cable of copper alloy,

the insulating coating consisting of fiberglass, asbestos, silicon rubber, or polytetrafluoroethylene alone or in combination,

the fabric portions between each undulation of the conductor being 2 to 6 centimeters in length,

the conductor (2) between the electrical contact leads (22,

     24) being one singular circuit,

the covering (34) being a laminate,

the laminate comprising a non-woven fabric, felt, or the like,

the laminate being a foamed material,

the fabric being provided with a covering (34) on both sides,

the covering (34) being at least partially provided with an adhesive in the region (36) which extends beyond the fabric (20), and

the fabric being provided with a perforation which runs from one edge (20a-d) between the sections (2a, b) of the conductor (2) and stops short before the turnaround region (2c) of the conductor (2).