Patents by Inventor Eric C.S. Lee

Eric C.S. 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: 5907961
    Abstract: A textile wet processing machine, including a vessel for containing processing liquids therein for processing textiles, a drum mounted within the vessel on an axis perpendicular to the vertical for rotation therein, a motor operating through a drive train for rotating the drum in the vessel and a plurality of textile holders carried by the drum. The holders are positioned around the periphery of the drum for containing the textiles to be processed as the drum and the holders are rotated successively through the liquid in the vessel. The holders may be baskets for containing apparel or apparel components, or fabric.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: June 1, 1999
    Assignee: Man Fung International, Ltd.
    Inventors: Eric C. S. Lee, On Kat Tsui
  • Patent number: 5833720
    Abstract: A method of dyeing cellulosic textile fibers with a dye which normally requires an exhaust salt. The method includes the step of forming a dye site, which includes the steps of treating the fibers with a dilute alkali solution containing an epoxy ammonium compound having an epoxy-reactive group which will permanently attach to cellulose hydroxyl groups to form a permanent cationic dye site, rinsing the fibers to remove any excess epoxy ammonium compound and at least some of the dilute alkali solution, and neutralizing any remaining alkali solution with a mild acid.The method also includes the steps of dyeing the fibers in a dyebath containing a bifunctional reactive dye without a salt and at a temperature at or below 30.degree. C. (86.degree. F.) to dye exhaustion.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: November 10, 1998
    Inventors: Johnny Joe Kent, Eric C.S. Lee, Sui-Fung Yu