Patents by Inventor Jon A. Bloyd

Jon A. Bloyd 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).

  • Light indicating system having light emitting diodes and power reduction circuit
    Patent number: 4342947
    Abstract: A light indicating monitoring system includes a plurality of light emitting diodes (LED's) having a common ground connected to a phase controlled silicon controlled rectifier (SCR) circuit. The SCR circuit limits conduction of rectified AC energy through the LED's and through corresponding resistors connected in series with the LED's for limiting the current through the LED's. The SCR circuit thereby provides for operating low DC voltage LED's from a high AC voltage source with a minimum of power and heat generation in the current limiting resistors.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: August 3, 1982
    Inventor: Jon A. Bloyd
  • Light indicating system having light emitting diodes and power reduction circuit
    Patent number: 4211956
    Abstract: A light indicating monitoring system includes a plurality of light emitting diodes (LED's) having a common ground connected to a phase controlled silicon controlled rectifier (SCR) circuit. The SCR circuit limits conduction of rectified AC energy through the LED's and through corresponding resistors connected in series with the LED's for limiting the current through the LED's. The SCR circuit thereby provides for operating low DC voltage LED's from a high AC voltage source with a minimum of power and heat generation in the current limiting resistors.
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: July 8, 1980
    Assignee: Aero-Metric General, Inc.
    Inventor: Jon A. Bloyd