Patents by Inventor Henry Charles Klein

Henry Charles Klein 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).

  • Remote control apparatus for power line communications system
    Patent number: 5777545
    Abstract: Remote control apparatus for a power line communications system in which control signals are transmitted, via the power line to, from the location of utilization equipment to a control unit located at a remote point and by which the utilization equipment is controlled.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: July 7, 1998
    Assignee: Elcom Technologies Corporation
    Inventors: Chandrakant Bhailalbhai Patel, Joseph Robert Ader, Henry Charles Klein, John Artman
  • Power line communications system and coupling circuit for power line communications system
    Patent number: 5705974
    Abstract: A coupling circuit for a power line communications system for coupling information signals from a transmitter unit to a power line and for coupling information signals from the power line to a receiver unit. The coupling circuit includes: (a) a ferrite core coupler for isolating the transmitter unit or the receiver unit from a power line and for coupling information signals from the transmitter unit to the power line and from the power line to the receiver unit, (b) a bandpass filter for selectively passing information signals from the transmitter unit to thew power line and from the power line to the receiver unit, and (c) an impedance matching pad for matching the impedance of the transmitter unit to the impedance at an outlet connected to the power line and to which the transmitter unit is connected and the receiver unit to the impedance at an outlet connected to the power line and to which the receiver unit is connected.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: January 6, 1998
    Assignee: Elcom Technologies Corporation
    Inventors: Chandrakant Bhailalbhai Patel, Jack Rudy Harford, Henry Charles Klein, Edward Alan Wald