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1. (WO1992010072) PTC HEATING DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010072 International Application No.: PCT/GB1991/002054
Publication Date: 11.06.1992 International Filing Date: 20.11.1991
Chapter 2 Demand Filed: 16.06.1992
IPC:
H05B 3/14 (2006.01)
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
3
Ohmic-resistance heating
10
Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
12
characterised by the composition or nature of the conductive material
14
the material being non-metallic
Applicants:
DOYLE, George [GB/GB]; GB
Inventors:
DOYLE, George; GB
Agent:
LOW, Peter, John ; Wilson, Gunn & Ellis 41-51 Royal Exchange Cross Street Manchester M2 7BD, GB
DOWNEY, William, Gerrard; Wilson, Gunn & Ellis 41-51 Royal Exchange Cross Street Manchester M2 7BD, GB
Priority Data:
9025323.821.11.1990GB
Title (EN) PTC HEATING DEVICE
(FR) DISPOSITIF DE CHAUFFAGE A COEFFICIENT DE TEMPERATURE POSITIF
Abstract:
(EN) The invention provides a heating device for insertion into items to be gripped such as motor cycle handles or hand grips on invalid chairs. The heating device comprises a positive temperature coefficient material (9) sandwiched between two electrodes (8a and 8b) such that electrical energy passing therethrough is dissipated in the form of heat. The 'sandwiched' arrangement is cylindrical in shape so as to be inserted into an item to be gripped. The invention overcomes the problem of existing wire wound devices which were prone to breaking or short circuiting.
(FR) Dispositif de chauffage destiné à s'introduire dans des objets que l'on empoigne, par exemple les guidons de motocylettes ou les poignées de fauteils roulants. Ledit dispositif de chauffage comporte un matériau (9) à coefficient de température positif intercalé entre deux électrodes (8a et 8b) de sorte que l'énergie électrique qui le traverse soit dissipée sous forme de chaleur. Cet agencement est cylindrique afin qu'il puisse s'introduire dans un objet que l'on empoigne, et surmonte les problèmes associés aux dispositifs à enroulement actuels qui sont sujets aux pannes et aux courts-circuits.
Designated States: AT, AU, BB, BG, BR, CA, CH, CS, DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MN, MW, NL, NO, PL, RO, SD, SE, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1991089091