Patents by Inventor Evan Drake Harriman Green

Evan Drake Harriman Green 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).

  • Closed loop mover assembly with measurement system
    Patent number: 7271523
    Abstract: A mover assembly (16) that moves or positions an object (12) includes a mover output (226), an actuator (230), and a measurement system (20). The mover output (226) is connected o the object (12), and the actuator (230) causes the mover output (226) to rotate about a first axis and move along the first axis. In this embodiment, the measurement system (20) directly measures the movement of the mover output (226) and provides feedback regarding the position of the mover output (226).
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: September 18, 2007
    Assignee: Bookham Technology plc
    Inventors: Andrew Zeigler, David F. Arnone, Evan Drake Harriman Green
  • Multiple speed mover assembly
    Patent number: 7122989
    Abstract: A mover assembly (16) that moves or positions an object (12) includes a mover output (226), an actuator (230), and a control system (18). The mover output (226) is connected to the object (12), and the actuator (230) causes the mover output (226) to move. The control system (18) selectively directs a drive signal to the actuator (230) in a first mode and in a second mode. In the first mode, a peak voltage and a baseline voltage are sequentially directed to the actuator (230). In the second mode an intermediate voltage is directed to the actuator (230), the intermediate voltage being intermediate the peak voltage and the baseline voltage.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: October 17, 2006
    Assignee: Bookham Technology plc
    Inventor: Evan Drake Harriman Green
  • Multiple speed mover assembly
    Publication number: 20060028158
    Abstract: A mover assembly (16) that moves or positions an object (12) includes a mover output (226), an actuator (230), and a control system (18). The mover output (226) is connected to the object (12), and the actuator (230) causes the mover output (226) to move. The control system (18) selectively directs a drive signal to the actuator (230) in a first mode and in a second mode. In the first mode, a peak voltage and a baseline voltage are sequentially directed to the actuator (230). In the second mode an intermediate voltage is directed to the actuator (230), the intermediate voltage being intermediate the peak voltage and the baseline voltage.
    Type: Application
    Filed: August 5, 2004
    Publication date: February 9, 2006
    Inventor: Evan Drake Harriman Green
  • Closed loop mover assembly with measurement system
    Patent number: 6911763
    Abstract: A mover assembly (16) that moves or positions an object (12) includes a mover output (226), an actuator (230), and a measurement system (20). The mover output (226) is connected to the object (12), and the actuator (230) causes the mover output (226) to rotate about a first axis and move along the first axis. In this embodiment, the measurement system (20) directly measures the movement of the mover output (226) and provides feedback regarding the position of the mover output (226).
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 28, 2005
    Assignee: New Focus, Inc., a Delaware Corporation
    Inventors: Andrew Ziegler, David F. Arnone, Evan Drake Harriman Green
  • Closed loop mover assembly with measurement system
    Publication number: 20040239265
    Abstract: A mover assembly (16) that moves or positions an object (12) includes a mover output (226), an actuator (230), and a measurement system (20). The mover output (226) is connected to the object (12), and the actuator (230) causes the mover output (226) to rotate about a first axis and move along the first axis. In this embodiment, the measurement system (20) directly measures the movement of the mover output (226) and provides feedback regarding the position of the mover output (226).
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Andrew Ziegler, David F. Arnone, Evan Drake Harriman Green