Patents by Inventor Timothy Woodward Zeigler

Timothy Woodward Zeigler 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).

  • Dynamic control of an electric drive
    Patent number: 8465263
    Abstract: A fluid delivery system includes a pump operably coupleable to a source of fluid. A reciprocating electromagnetic actuator is coupled to the pump and has a coil that when energized causes the actuator to drive the pump. Coil current sensing circuitry is configured to provide an indication of current flowing in the coil. A controller is coupled to the coil current sensing circuitry and is configured to calculate a coil drive parameter based upon a plurality of coil current indications from the coil current sensing circuitry. Coil drive circuitry is coupled to the controller and is configured to supply current to the coil based on the coil drive parameter.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: June 18, 2013
    Assignee: Wagner Spray Tech Corporation
    Inventors: Michael B. Jones, Gregory Wayne Parkhurst, Timothy Woodward Zeigler
  • DYNAMIC CONTROL OF AN ELECTRIC DRIVE
    Publication number: 20100322795
    Abstract: A fluid delivery system includes a pump operably coupleable to a source of fluid. A reciprocating electromagnetic actuator is coupled to the pump and has a coil that when energized causes the actuator to drive the pump. Coil current sensing circuitry is configured to provide an indication of current flowing in the coil. A controller is coupled to the coil current sensing circuitry and is configured to calculate a coil drive parameter based upon a plurality of coil current indications from the coil current sensing circuitry. Coil drive circuitry is coupled to the controller and is configured to supply current to the coil based on the coil drive parameter.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 23, 2010
    Applicant: Wagner Spray Tech Corporation
    Inventors: Michael B. Jones, Gregory Wayne Parkhurst, Timothy Woodward Zeigler