Patents by Inventor Charlie Ren

Charlie Ren 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).

  • Modular router with base power switch
    Patent number: 8408259
    Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: April 2, 2013
    Assignee: Robert Bosch GmbH
    Inventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
  • Modular Router With Base Power Switch
    Publication number: 20120024424
    Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.
    Type: Application
    Filed: October 10, 2011
    Publication date: February 2, 2012
    Applicants: ROBERT BOSCH GMBH, CREDO TECHNOLOGY CORPORATION
    Inventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
  • Modular router with base power switch
    Patent number: 8033307
    Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: October 11, 2011
    Assignee: Robert Bosch GmbH
    Inventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
  • Modular router with base sensor
    Patent number: 7921889
    Abstract: A power tool comprises a base unit and a motor unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor and a second electrical connector. The motor unit is configured to be releasably connected to the base unit. An electrical connection is established between the first electrical connector and the second electrical connector when the motor unit is properly connected to the base unit. A sensor is configured to determine whether the motor unit is properly connected to the base unit.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: April 12, 2011
    Assignee: Robert Bosch GmbH
    Inventors: David Pozgay, Charlie Ren, Jeff Schreiner
  • Modular Router With Base Power Switch
    Publication number: 20100206430
    Abstract: A routing machine comprises a base unit and a motor unit releasably connected to the base unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor, motor control circuitry configured to energize or de-energize the electric motor, and a second electrical connector connected to the motor control circuitry. The second electrical connector is configured to engage the first electrical connector when the motor unit is properly seated on the base unit. An electric switch is positioned on the base unit. The motor control circuitry is configured to deliver electric power to the electric motor when the switch is in an on position. The motor control circuitry is configured to not provide electric power to the electric motor when the switch is in an off position.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Applicants: CREDO TECHNOLOGY CORPORATION, ROBERT BOSCH GMBH
    Inventors: David Pozgay, James B. Stevens, Harald Krondorfer, Jeff Schreiner, Martin Feldman, Tim Truesdale, Arturo Gonzalez, Deborah Brown, Erick Higashi, Charlie Ren
  • Modular Router With Base Sensor
    Publication number: 20100206429
    Abstract: A power tool comprises a base unit and a motor unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor and a second electrical connector. The motor unit is configured to be releasably connected to the base unit. An electrical connection is established between the first electrical connector and the second electrical connector when the motor unit is properly connected to the base unit. A sensor is configured to determine whether the motor unit is properly connected to the base unit.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Applicants: CREDO TECHNOLOGY CORPORATION, ROBERT BOSCH GMBH
    Inventors: David Pozgay, Charlie Ren, Jeff Schreiner