Patents by Inventor Sze Tsang Wu

Sze Tsang Wu 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).

  • Publication number: 20010042945
    Abstract: A method and apparatus for making insignias with a raised design is capable of providing more aesthetic appearance to the insignias thus made. A base material consisting of a base sheet and a surface sheet overlaying the base sheet is prepared for making into an insignia. The base material is coating with a surface coating of decorative material. A bottom mold and an upper mold are used to press the base material to form raised design of patterns. The bottom and upper molds are coupled to a composite heating device including high-frequency induction and electric heating means for applying both high-frequency induction heat and electric heat to the base material while the upper molding is being pressed against the bottom mold. The upper mold is formed with a plurality of edge-defining blades for cutting an edge for the insignia, a plurality of pattern-defining blades for forming a pre-designed pattern on the insignia.
    Type: Application
    Filed: November 2, 1998
    Publication date: November 22, 2001
    Inventor: SZE TSANG WU
  • Patent number: 6309582
    Abstract: A method and apparatus for making insignias with a raised design is capable of providing more aesthetic appearance to the insignias thus made. A base material consisting of a base sheet and a surface sheet overlaying the base sheet is prepared for making into an insignia. The base material is coating with a surface coating of decorative material. A bottom mold and an upper mold are used to press the base material to form raised design of patterns. The bottom and upper molds are coupled to a composite heating device including high-frequency induction and electric heating means for applying both high-frequency induction heat and electric heat to the base material while the upper molding is being pressed against the bottom mold. The upper mold is formed with a plurality of edge-defining blades for cutting an edge for the insignia, a plurality of pattern-defining blades for forming a pre-designed pattern on the insignia.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: October 30, 2001
    Inventor: Sze Tsang Wu
  • Patent number: 5834037
    Abstract: A method and apparatus for making insignias with a raised design is capable of providing more aesthetic appearance to the insignias thus made. A base material consisting of a base sheet and a surface sheet overlaying the base sheet is prepared for making into an insignia. The base material is coating with a surface coating of decorative material. A bottom mold and an upper mold are used to press the base material to form raised design of patterns. The bottom and upper molds are coupled to a composite heating device including high-frequency induction and electric heating means for applying both high-frequency induction heat and electric heat to the base material while the upper molding is being pressed against the bottom mold. The upper mold is formed with a plurality of edge-defining blades for cutting an edge for the insignia, a plurality of pattern-defining blades for forming a pre-designed pattern on the insignia.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: November 10, 1998
    Inventor: Sze Tsang Wu
  • Patent number: 5738296
    Abstract: A spool protector with a vertically-extendable spool protector is provided. The vertically-extendable spool protector is extendable vertically to protect spools of various sizes from being flipped away from the rollers that support the spools. The spool protector includes a protection beam and a releasable fastening means for releasably securing the protection beam in desired positions. The releasable fastening means can be implemented in two embodiment. The first embodiment is a supportive piece having a pair of angled portions each forming a coupling hole therein and the second embodiment is composed of a securing frame and a screw mounted on said securing frame. When said releasable fastening means release the protection beam, the technician can freely adjust for a suitable position for the protection beam so as to protect spools of various sizes.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: April 14, 1998
    Assignee: Jen Hui Chen
    Inventor: Sze-Tsang Wu