Patents by Inventor Barbara Isabel Hummel

Barbara Isabel Hummel 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).

  • Patent number: 7020271
    Abstract: A system and method that allows a ringer of a telephone to be silenced on demand without preventing outgoing calls to be placed. In an embodiment of the invention, there is a ring control device comprising a switch, a voltage control device in electrical series with the switch, and a first plug for receiving a first electrical signal, the first electrical signal comprising a first voltage and a second voltage, the first plug disposed in series with and before the voltage control device. The ring control device also includes a second plug for outputting at least one of the first and second voltages of the first electrical signal, the second plug disposed in series with and after the switch. In the ring control device, the voltage control device prevents one of the first and second voltages from passing to the second plug when the switch is in a predetermined position.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: March 28, 2006
    Inventor: Barbara Isabel Hummel
  • Publication number: 20040252824
    Abstract: In an embodiment of the present invention, there is a ring control device comprising a switch, a voltage control device in electrical series with the switch, and a first plug for receiving a first electrical signal, the first electrical signal comprising a first voltage and a second voltage, the first plug disposed in series with and before the voltage control device. The ring control device also includes a second plug for outputting at least one of the first and second voltages of the first electrical signal, the second plug disposed in series with and after the switch. In the ring control device, the voltage control device prevents one of the first and second voltages from passing to the second plug when the switch is in a predetermined position.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 16, 2004
    Inventor: Barbara Isabel Hummel