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Sealed beam lamps

  • US 4,677,343 A
  • Filed: 11/16/1984
  • Issued: 06/30/1987
  • Est. Priority Date: 11/18/1983
  • Status: Expired due to Fees
First Claim
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1. A discharge lamp comprising an outer envelope, an arc tube disposed within the envelope in spaced relationship thereto and having electrodes for sustaining a discharge therebetween, electrical in-leads extending continuously between electrical conductors sealed to said envelope and respective electrodes, the lamp including a starting aid and a spark gap, the spark gap being supported by one of said in-leads and being arranged for electrical connection between one of the in-leads and the starting aid by an electrically conductive element wherein the spark gap comprises a predetermined length of insulating material forming a sleeve placed around said one of the in-leads, the sleeve serving to space the conductive element from the in-lead and define an opening to provide said spark gap.

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