(19)
(11) EP 0 271 858 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.05.1990 Bulletin 1990/20

(43) Date of publication A2:
22.06.1988 Bulletin 1988/25

(21) Application number: 87118490.9

(22) Date of filing: 14.12.1987
(51) International Patent Classification (IPC)4: H01K 1/18
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 16.12.1986 US 942327

(71) Applicant: GTE PRODUCTS CORPORATION
Wilmington Delaware 19801 (US)

(72) Inventors:
  • Benson, Timothy A.
    Winchester MA 01890 (US)
  • Gagnon, Peter R.
    Georgetown, MA 01833 (US)

(74) Representative: Butler, Michael John 
Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)


(56) References cited: : 
   
       


    (54) High voltage hard glass halogen capsule


    (57) The present invention is directed to a unique light source capsule having filamentary supports at each end of a coiled coil incandescent filament and at least one, preferably at least two, intermediate filament supports therein.
    Such light source capsules will be especially useful in high voltage European versions of Sylvania's Capsylite lamps.







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