EP 0144187 B1 19920311 - ELECTRICAL DEVICES COMPRISING PTC ELEMENTS
Title (en)
ELECTRICAL DEVICES COMPRISING PTC ELEMENTS
Publication
Application
Priority
US 55264983 A 19831117
Abstract (en)
[origin: EP0144187A1] A laminar electrical heater in which at least one of the electrodes is in the form of an elongate element forming part of a fabric and which comprises a PTC element, e.g. of a conductive polymer, to render the heater self-regulating. Preferably the heater is prepared by weaving together (a) a first elongate element comprising a first electrode (1) and a layer (11) of PTC conductive polymer surrounding that electrode, and (b) a second elongate element comprising a second electrode (2). The resulting fabric can if desired be laminated to a sheet of a ZTC (3) conductive polymer. A shrinkable fabric heater can be made by incorporating a heat-shrinkable non-conductive filament (4) into the fabric, perpendicular to both electrodes, and is useful for example for enclosing splices in telephone cables.
IPC 1-7
IPC 8 full level
H05B 3/14 (2006.01); H05B 3/20 (2006.01); H05B 3/34 (2006.01)
CPC (source: EP)
H05B 3/146 (2013.01); H05B 3/342 (2013.01); H05B 2203/005 (2013.01); H05B 2203/011 (2013.01); H05B 2203/013 (2013.01); H05B 2203/017 (2013.01); H05B 2203/02 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0144187 A1 19850612; EP 0144187 B1 19920311; AT E73598 T1 19920315; CA 1234597 A 19880329; DE 3485566 D1 19920416; JP H0584039 B2 19931130; JP S60130085 A 19850711
DOCDB simple family (application)
EP 84307984 A 19841116; AT 84307984 T 19841116; CA 468044 A 19841116; DE 3485566 T 19841116; JP 24313384 A 19841116