Patents by Inventor Dug Gum Lee

Dug Gum Lee 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).

  • Patent number: 8291787
    Abstract: A rotation generating system comprises a base disk defined by a rim, top and bottom surfaces; a ball bearing engaged on and along the disk rim, said ball bearing comprising balls, a ring rotatably engaging the balls to the disk rim, and side supports propping the balls between the disk rim and the ring; and a shaft having first and second ends, wherein the first end is fixed to an eccentric portion of the disk top surface, wherein the shaft is angled with the disk top surface by forty-five (45) degrees.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 23, 2012
    Inventor: Dug Gum Lee
  • Patent number: 7669492
    Abstract: A rotational movement generating apparatus having a platform supported by a support assembly. The support assembly connects to a central point of the platform in a manner that allows the platform to rotate at the central point. A central axis is defined with the circular rotation of the platform. The platform defines a first radius line extending from the central point to an outer edge of the platform. An arm connects to the platform at a connection point that is spaced apart from the first radius line of the platform. A first portion of the arm ends at an elbow where it connects to a second portion of the arm. The second portion of the arm is positioned to extend in an upward direction over the first radius line at a predetermined angle towards the central axis. A thrust bearing is positioned above the platform in alignment with the central point. The thrust bearing has an outer disk rotatably encircling a thrust cylinder. The second portion of the arm connects to the outer disk.
    Type: Grant
    Filed: October 6, 2007
    Date of Patent: March 2, 2010
    Inventor: Dug Gum Lee
  • Publication number: 20090090202
    Abstract: A rotational movement generating apparatus having a platform supported by a support assembly. The support assembly connects to a central point of the platform in a manner that allows the platform to rotate at the central point. A central axis is defined with the circular rotation of the platform. The platform defines a first radius line extending from the central point to an outer edge of the platform. An arm connects to the platform at a connection point that is spaced apart from the first radius line of the platform. A first portion of the arm ends at an elbow where it connects to a second portion of the arm. The second portion of the arm is positioned to extend in an upward direction over the first radius line at a predetermined angle towards the central axis. A thrust bearing is positioned above the platform in alignment with the central point. The thrust bearing has an outer disk rotatably encircling a thrust cylinder. The second portion of the arm connects to the outer disk.
    Type: Application
    Filed: October 6, 2007
    Publication date: April 9, 2009
    Inventor: Dug Gum Lee