Patents by Inventor Fred R. Holdener

Fred R. Holdener 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).

  • Two position optical element actuator device
    Patent number: 6384990
    Abstract: The present invention is a two position optical element actuator device utilizing a powered means to hold an actuation arm, to which an optical element is attached, in a first position. A non-powered means drives the actuation arm to a second position, when the powered means ceases to receive power. The optical element may be a electromagnetic (EM) radiation or particle source, an instrument, or EM radiation or particle transmissive, reflective or absorptive elements. A bearing is used to transfer motion and smoothly transition the actuation arm from the first to second position.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: May 7, 2002
    Assignee: The United States of America, as represented by the Department of Energy
    Inventors: Fred R. Holdener, Robert D. Boyd
  • Bi-stable optical element actuator device
    Patent number: 6381080
    Abstract: The present invention is a bistable optical element actuator device utilizing a powered means to move an actuation arm, to which an optical element is attached, between two stable positions. A non-powered means holds the actuation arm in either of the two stable positions. The optical element may be a electromagnetic (EM) radiation or particle source, an instrument, or EM radiation or particle transmissive reflective or absorptive elements. A bearing is used to transfer motion and smoothly transition the actuation arm between the two stable positions.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: April 30, 2002
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Fred R. Holdener, Robert D. Boyd
  • Bi-stable optical actuator
    Patent number: 6144506
    Abstract: The present invention is a bi-stable optical actuator device that is depowered in both stable positions. A bearing is used to transfer motion and smoothly transition from one state to another. The optical actuator device may be maintained in a stable position either by gravity or a restraining device.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: November 7, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Fred R. Holdener, Robert D. Boyd