Patents by Inventor Gordon Barrus

Gordon Barrus 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).

  • Publication number: 20060127154
    Abstract: An RFID label with embedded tag is passed through an RFID antenna in a printer system, where the RFID antenna allows a roll of such labels to pass in close proximity to the antenna and still allow each individual RFID tag to be read and/or programmed. The RFID antenna module is formed with a transmission line coupled to an RF phase splitter, where in one embodiment, the transmission line is formed from two parallel conductive strips.
    Type: Application
    Filed: February 7, 2006
    Publication date: June 15, 2006
    Inventors: Gordon Barrus, Richard Schumaker, Andrew Edwards, Kevin Smith, Duane Gibbs, Rudy Concepcion
  • Publication number: 20050191424
    Abstract: A printing ink for use within multiple ambient temperatures which comprises a mixture of two or more inks having different viscosities at a given temperature. Thus, one or more lower viscosity inks having, for example, a viscosity in the range of about 300 cps to about 900 cps is mixed with one or more higher viscosity inks having, for example, a viscosity range of about 1100 cps to about 1800 cps to provide a multi-viscosity ink mixture useful over a wide temperature range.
    Type: Application
    Filed: February 11, 2005
    Publication date: September 1, 2005
    Inventors: Jeng-Dung Jou, Dennis White, Gordon Barrus
  • Publication number: 20050139667
    Abstract: An RFID label with embedded tag is passed through an RFID antenna in a printer system, where the RFID antenna allows a roll of such labels to pass in close proximity to the antenna and still allow each individual RFID tag to be read and/or programmed. The RFID antenna module is formed with a transmission line coupled to an RF phase splitter, where in one embodiment, the transmission line is formed from two parallel conductive strips.
    Type: Application
    Filed: February 22, 2005
    Publication date: June 30, 2005
    Inventors: Gordon Barrus, Richard Schumaker, Andrew Edwards, Kevin Smith, Duane Gibbs, Rudy Concepcion
  • Patent number: 5743665
    Abstract: A printer with a reciprocally moving hammerbank with a plurality of hammers thereon is disclosed including a magnet for retaining hammers on the hammerbank of the printer from a firing position. A coil overcomes the magnetism of the magnet by a circuit for reversing the magnetic field. At least a portion of the circuit comprises transistor drivers located directly on the hammerbank of the printer.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: April 28, 1998
    Assignee: Printronix, Inc.
    Inventors: Robert P. Ryan, Gordon Barrus
  • Patent number: 5595446
    Abstract: A printer is disclosed of the dot matrix type having a series of hammers with pins that print upon an underlying media, and which are released from magnetic retention by reversing the polarity of a permanent magnet and having electro-mechanical drive circuits and logic circuits. A power supply supplies an output of a voltage level for driving the electro-mechanical circuits connected to a ribbon drive, platen drive, paper feed, shuttle motor, and fans at a given voltage and the hammers at a different voltage. A thermal sensor is connected to a heat sink of the power supply, and to the printer controller to change the rate of printing when pre-established temperatures are sensed.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: January 21, 1997
    Assignee: Printronix, Inc.
    Inventors: Gordon Barrus, Richard E. Schumaker