EP 0174774 A1 19860319 - Heating apparatus.
Title (en)
Heating apparatus.
Title (de)
Heizapparat.
Title (fr)
Appareil de chauffage.
Publication
Application
Priority
- GB 8422902 A 19840911
- GB 8424667 A 19840929
Abstract (en)
A heating unit includes two tubular tungsten-halogen lamps (1, 2), each having a tungsten filament (3, 4). The lamps (1, 2) are supported within a ring (7) of ceramic fibre material and the unit is preferably mounted beneath an infra-red-transmissive cooktop to define a hotplate area (8) of a cooking hob. A control circuit provides a range of discrete power outputs of the lamps (1, 2), each power output corresponding to a power control setting set by a user of the cooking hob. The circuit includes a phase control circuit (19) for switching power to the lamps (1, 2) at a predetermined phase angle to achieve one or more of the lower power outputs.
IPC 1-7
IPC 8 full level
H05B 3/74 (2006.01)
CPC (source: EP)
H05B 3/744 (2013.01)
Citation (search report)
- GB 2132060 A 19840627 - THORN EMI DOMESTIC APPLIANCES
- US 3355574 A 19671128 - BASSETT JR ARTHUR T
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0174774 A1 19860319; AU 4688985 A 19860320; AU 8296087 A 19880421; DK 395385 A 19860312; DK 395385 D0 19850829
DOCDB simple family (application)
EP 85306107 A 19850829; AU 4688985 A 19850829; AU 8296087 A 19871222; DK 395385 A 19850829