Patents by Inventor Robert L. Smialek

Robert L. Smialek has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Switching devices for photoflash unit
    Patent number: 3990832
    Abstract: A multiple flashlamp array is designed having a plurality of lamps fired individually and in sequence and includes a plurality of static solid switching devices capable of being easily activated by radiant energy generated during flashing of the lamps. Initially, the switches have a high resistance ("off" condition) and after being activated by radiation, they undergo chemical conversion to a conductive state ("on" condition). The switches are prepared from compositions which impart improved shelf life under conditions of relatively high humidity at above normal ambient temperatures.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: November 9, 1976
    Assignee: General Electric Company
    Inventors: Robert L. Smialek, Mary S. Jaffe
  • Switching devices for photoflash unit
    Patent number: 3969066
    Abstract: A multiple flashlamp array is disclosed having a plurality of lamps fired individually and in sequence which includes a plurality of static solid switching devices capable of being easily activated by radiant energy generated during flashing of the lamps. Initially, the switches have a high resistance ("off position") and after being activated by radiation, they undergo chemical conversion to a conductive state ("on position"). The switches are prepared from compositions which impart improved shelf life under conditions of relatively high humidity at above normal ambient temperatures. The switch material composition comprises a mixture of finely divided cupric oxide with a humidity resistant organic polymer binder.
    Type: Grant
    Filed: November 5, 1974
    Date of Patent: July 13, 1976
    Assignee: General Electric Company
    Inventors: Robert L. Smialek, Mary S. Jaffe
  • Switching devices for photoflash unit
    Patent number: 3969065
    Abstract: A multiple flashlamp array having a plurality of lamps fired individually and in sequence which includes a plurality of static solid switching devices capable of being easily activated by radiant energy generated during flashing of the lamps. Initially, the switches have a high resistance ("off position") and after being activated by radiation, they undergo chemical conversion to a conductive state ("on position"). The switches are prepared from compositions which impart improved shelf life under conditions of relatively high humidity at above normal ambient temperatures. The switch material composition comprises a mixture of a solid copper salt with a humidity resistant organic polymer binder and a finely divided metal reducing agent.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: July 13, 1976
    Assignee: General Electric Company
    Inventor: Robert L. Smialek