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Ignition devices in photo flash bulbs

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  • CPC
  • F21K5/023
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F21Lighting F21KLIGHT SOURCES NOT OTHERWISE PROVIDED FOR F21K5/00Light sources using a charge of combustible material

Current Industry

F21K5/023Ignition devices in photo flash bulbs
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Patents Grantslast 30 patents

  • Information Patent Grant

    Means for electrically contacting flash lamp having external conduc...
    • Patent number 4,158,878
    • Issue date Jun 19, 1979
    • GTE Sylvania Incorporated
    • James C. Morris
    • F21 - LIGHTING
  • Information Patent Grant

    Selective actuating mechanism for signal device using percussive fl...
    • Patent number 4,070,145
    • Issue date Jan 24, 1978
    • GTE Sylvania Incorporated
    • Harold H. Hall
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electric lamp having an internal switching mechanism
    • Patent number 4,009,987
    • Issue date Mar 1, 1977
    • U.S. Philips Corporation
    • Anton Boekkooi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Flash lamp unit
    • Patent number 3,980,421
    • Issue date Sep 14, 1976
    • U.S. Philips Corporation
    • Andreas Maria Heeman
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Multiple flashlamp unit with indexing means
    • Patent number 3,958,115
    • Issue date May 18, 1976
    • U.S. Philips Corporation
    • Ernst Machiel Schmidt
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Flash lamp signaling circuit employing logic signal activation
    • Patent number 3,935,514
    • Issue date Jan 27, 1976
    • Polaroid Corporation
    • Seymour Ellin
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3923684
    • Patent number 3,923,684
    • Issue date Dec 2, 1975
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3898512
    • Patent number 3,898,512
    • Issue date Aug 5, 1975
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3895902
    • Patent number 3,895,902
    • Issue date Jul 22, 1975
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3873260
    • Patent number 3,873,260
    • Issue date Mar 25, 1975
    • F21 - LIGHTING
  • Information Patent Grant

    3873261
    • Patent number 3,873,261
    • Issue date Mar 25, 1975
    • F21 - LIGHTING
  • Information Patent Grant

    3783260
    • Patent number 3,783,260
    • Issue date Jan 1, 1974
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3780283
    • Patent number 3,780,283
    • Issue date Dec 18, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3772973
    • Patent number 3,772,973
    • Issue date Nov 20, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3770362
    • Patent number 3,770,362
    • Issue date Nov 6, 1973
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3758827
    • Patent number 3,758,827
    • Issue date Sep 11, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3753390
    • Patent number 3,753,390
    • Issue date Aug 21, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3742298
    • Patent number 3,742,298
    • Issue date Jun 26, 1973
    • F21 - LIGHTING
  • Information Patent Grant

    3735111
    • Patent number 3,735,111
    • Issue date May 22, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3734679
    • Patent number 3,734,679
    • Issue date May 22, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3728067
    • Patent number 3,728,067
    • Issue date Apr 17, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3727040
    • Patent number 3,727,040
    • Issue date Apr 10, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3706522
    • Patent number 3,706,522
    • Issue date Dec 19, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3706265
    • Patent number 3,706,265
    • Issue date Dec 19, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3706521
    • Patent number 3,706,521
    • Issue date Dec 19, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3700377
    • Patent number 3,700,377
    • Issue date Oct 24, 1972
    • F21 - LIGHTING
  • Information Patent Grant

    3692996
    • Patent number 3,692,996
    • Issue date Sep 19, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3677150
    • Patent number 3,677,150
    • Issue date Jul 18, 1972
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3675073
    • Patent number 3,675,073
    • Issue date Jul 4, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3666394
    • Patent number 3,666,394
    • Issue date May 30, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY