Electrically heated window

(19)

(11)

EP 0 876 083 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	26.05.1999 Bulletin 1999/21

(43)	Date of publication A2:
	04.11.1998 Bulletin 1998/45

(21)	Application number: 98303082.6

(22)	Date of filing: 22.04.1998

(51)	International Patent Classification (IPC)⁶: H05B 3/84

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

01.05.1997 GB 9708906

(71)	Applicant: Triplex Safety Glass Limited
	Merseyside WA10 3TT (GB)

(72)	Inventors:
	Bonorino, Michael Solihull, West Midlands B92 7HH (GB) Davies, Graham Gerald St Helens, Merseyside WA10 3DT (GB) Hemingway, David Newton-le-Willows, Merseyside WA12 9RP (GB)

(74)	Representative: Halliwell, Anthony Charles et al
	Pilkington plc, Group Patents Department, Pilkington Technology Centre, Hall Lane, Lathom Ormskirk, Lancashire L40 5UF Ormskirk, Lancashire L40 5UF (GB)

(54)	Electrically heated window

(57) The window 1 has a busbar 11 comprising two portions of different width to allow an item of equipment, such as a lamp 7, to be accommodated on the window without the busbar arrangement detracting from the appearance of the window. A first, relatively narrow, busbar portion 15 allows part of a heating element 3 to terminate without extending into an area 6 selected for the lamp, and a second, relatively wide, busbar portion 14 is connected so as to reduce the electric current which flows through the narrow portion. The window may be for a vehicle, and preferably, only the narrow busbar portion is visible from outside the vehicle. The busbar 11 may be divided into two separate busbars, and a further heated area 40 may be provided where a window wiper may rest when not in use.

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