Patents by Inventor San Fu

San Fu 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: 6880484
    Abstract: A double-walled container having a bottom wall, an exterior wall, and an interior wall disposed in concentric relation to the exterior wall. The bottom wall, the exterior wall, and the interior wall define a liquid fluid-holding reservoir. An annular top wall interconnects the exterior wall and the interior wall at their respective uppermost rims. A fill opening formed in the top wall enables introduction of liquid fluid into the liquid fluid-holding reservoir. The interior wall and the bottom wall define a soil or liquid fluid-holding space. A flow control valve extends through a first opening formed in the exterior wall and a second opening formed in the interior wall. Liquid fluid in the liquid fluid-holding reservoir is introduced into fluid communication with soil in the soil-holding space by opening the flow control valve. In another embodiment, a flask is retrofit into a single-walled container.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: April 19, 2005
    Inventor: San Fu Lee
  • Patent number: 6691460
    Abstract: A double-walled container having a bottom wall, an exterior wall, and an interior wall disposed in concentric relation to the exterior wall. The bottom wall, the exterior wall, and the interior wall define a liquid fluid-holding reservoir. An annular top wall interconnects the exterior wall and the interior wall at their respective uppermost rims. A fill opening formed in the top wall enables introduction of liquid fluid into the liquid fluid-holding reservoir. The interior wall and the bottom wall define a soil or liquid fluid-holding space. A flow control valve extends through a first opening formed in the exterior wall and a second opening formed in the interior wall. Liquid fluid in the liquid fluid-holding reservoir is introduced into fluid communication with soil in the soil-holding space by opening the flow control valve. In another embodiment, a flask is retrofit into a single-walled container.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: February 17, 2004
    Inventor: San Fu Lee
  • Patent number: 5979100
    Abstract: An improvement in cast nets includes a first ring to which a throw rope is releasably attached and a second ring that is interconnected to the first ring by a housing that allows the rings to swivel independently with respect to one another. The second ring is releasably attached to a semicircular handle that is attached to an apertured flat disc. Each brail has an uppermost end that extends through an aperture in the disc and which is knotted so that it cannot fall back through the aperture. An annular ring is releasably attached to the flat disc and overlies the knots to prevent axial travel of the brails. The rotational connection between the rings facilitates throwing the net, and the connection of the top end of the brails to the apertured disc inhibits tangling of the brails with one another and facilitates replacement of broken brails.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: November 9, 1999
    Inventor: San Fu Lee
  • Patent number: 5681233
    Abstract: A game ball comprises an inflatable rubber bladder, a layer of windings over the bladder, panels of sponge rubber over the wound bladder, rubber channels between adjacent panels of sponge rubber, and panels of cover material over the panels of sponge rubber. Before the panels of cover material are applied, the bladder, sponge rubber, and channels are cured in a heated mold to bond the rubber channels and the sponge rubber to the wound bladder. After the panels of cover material are applied, the ball is heat molded to bond the cover material to the rubber channels and the sponge rubber.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: October 28, 1997
    Assignee: Wilson Sporting Goods Co.
    Inventors: Douglas G. Guenther, Bradley L. Gaff, San-Fu Yang, Takeo Suzuki