Global Patent Index - EP 0979593 A1

EP 0979593 A1 20000216 - HEATING ELEMENT AND METHOD OF MANUFACTURE

Title (en)

HEATING ELEMENT AND METHOD OF MANUFACTURE

Title (de)

HEIZELEMENT UND SEINEM HERSTELLUNGSVERFAHREN

Title (fr)

ELEMENT CHAUFFANT ET SON PROCEDE DE PRODUCTION

Publication

EP 0979593 A1 (EN)

Application

EP 97940706 A

Priority

  • US 9715291 W
  • US 70552796 A
  • US 85559597 A

Abstract (en)

[origin: WO9809478A1] A soft and flexible thin heating element made of electrically conductive carbon carrying fabric is impregnated with a soft filling material. The heating element (29) is shaped by curing the soft filling material and cutting the treated fabric into a desired pattern. The electrical contacts (15) are attached to the ends of the serpentine strips which are electrically connected in parallel or in series. The fabric heating element core (29) is sealed to form a multi-layer assembly having at least two electrically insulating layers (12) which envelop each strip of the heating element core. The heating element is made of non-metallic yarns containing electrically conductive carbon/graphite containing fibers which are woven or stranded into the strips, ropes, sleeves or strands of threads. The selected areas of the heating element core are modified to impart additional electrical properties. An optional positive temperature coefficient (PTC) material is incorporated into said selected areas.

IPC 1-7

H05B 1/00; H01C 17/00; H01C 17/06; H05B 3/00; H05B 3/06; H05B 3/10; H05B 3/16; H05B 3/34

IPC 8 full level

H05B 3/20 (2006.01); A41D 13/005 (2006.01); H01C 1/148 (2006.01); H01C 7/00 (2006.01); H01C 17/00 (2006.01); H05B 3/14 (2006.01); H05B 3/34 (2006.01); H05B 3/36 (2006.01)

CPC (source: EP)

A41D 13/0051 (2013.01); H01C 1/148 (2013.01); H01C 7/00 (2013.01); H01C 17/00 (2013.01); H05B 3/145 (2013.01); H05B 3/342 (2013.01); H05B 2203/002 (2013.01); H05B 2203/003 (2013.01); H05B 2203/004 (2013.01); H05B 2203/005 (2013.01); H05B 2203/011 (2013.01); H05B 2203/014 (2013.01); H05B 2203/017 (2013.01); H05B 2203/026 (2013.01); H05B 2203/028 (2013.01); H05B 2203/029 (2013.01); H05B 2203/036 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FI FR GB IT

DOCDB simple family (publication)

WO 9809478 A1 19980305; CA 2236024 A1 19980305; CA 2236024 C 20010123; EP 0979593 A1 20000216; EP 0979593 A4 20010404; IL 121654 A 20030706; IL 121654 D0 19980222; JP 2001525104 A 20011204

DOCDB simple family (application)

US 9715291 W 19970829; CA 2236024 A 19970829; EP 97940706 A 19970829; IL 12165497 A 19970829; JP 51198398 A 19970829