EP 0384640 A3 19920318 - IMPROVEMENTS IN ELECTRIC HOTPLATES
Title (en)
IMPROVEMENTS IN ELECTRIC HOTPLATES
Publication
Application
Priority
GB 8903829 A 19890220
Abstract (en)
[origin: EP0384640A2] An electric hotplate is described having a laminated structure in which the heating element comprises strips of resistive material R on an insulating substrate. The strips are connected in a series parallel arrangement between conductors A, X, Y, Z and B. The interconnecting conductors X, Y and Z may be of a material having a negative temperature co-efficient of resitivity.
IPC 1-7
IPC 8 full level
H05B 3/14 (2006.01); H05B 3/68 (2006.01); H05B 3/72 (2006.01)
CPC (source: EP)
H05B 3/68 (2013.01); H05B 3/72 (2013.01); H05B 2203/013 (2013.01); H05B 2203/017 (2013.01); H05B 2203/02 (2013.01)
Citation (search report)
- [X] FR 1102755 A 19551025 - SAINT GOBAIN
- [A] EP 0300685 A2 19890125 - EMI PLC THORN [GB]
- [A] GB 2163330 A 19860219 - RAYCHEM CORP
- [A] FR 2202422 A1 19740503 - SAINT GOBAIN [FR]
- [A] EP 0230555 A2 19870805 - BOSCH SIEMENS HAUSGERAETE [DE]
- [A] US 3895216 A 19750715 - HURKO BOHDAN
- [A] EP 0122071 A1 19841017 - CHISSO ENG CO LTD [JP]
- [A] FR 1280278 A 19611229 - THOMSON HOUSTON COMP FRANCAISE
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0384640 A2 19900829; EP 0384640 A3 19920318; GB 2228396 A 19900822; GB 8903829 D0 19890405; JP H02247996 A 19901003
DOCDB simple family (application)
EP 90301604 A 19900215; GB 8903829 A 19890220; JP 4088290 A 19900220