Patents by Inventor Tzun-Zong Wu

Tzun-Zong 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: 20050115598
    Abstract: An umbrella grip includes an elastic string protruding outwardly from the grip to form a loop portion for carrying or hanging purpose; and the elastic string made of elastic materials and capable of being resiliently wound and engaged with at least a groove circumferentially recessed in an outer surface of an extension wall of the grip, whereby when the use of the string is not desired, the loop portion of the string may be fastened and engaged in the groove of the grip to prevent from tangling with other articles when stored in a bag or purse.
    Type: Application
    Filed: November 27, 2003
    Publication date: June 2, 2005
    Inventor: Tzun-Zong Wu
  • Patent number: 6089727
    Abstract: An illuminating umbrella includes a top illuminator fixed on a top end of an umbrella central shaft, and a plurality of tip illuminators respectively fixed on a plurality of tips of the top ribs of the umbrella. Each illuminator has a positive wire electrically connected to a positive conducting ring secured on an outer peripheral portion of an umbrella notch or ferrule formed on an upper end of the central shaft, and a negative wire electrically connected to a negative conducting ring embedded on the central shaft which serves as a negative conductor. The positive conducting ring is electrically connected to a positive pole of a power source, of which the negative pole is electrically connected to the central shaft through an on-off switch slidably held on a grip of the shaft thereby forming a reliable stable power connection circuit among the illuminators and the power source. A flasher is connected between the power source and the illuminators for flashing the illuminators when turned on.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: July 18, 2000
    Inventor: Tzun-Zong Wu
  • Patent number: 6006771
    Abstract: A safety umbrella runner includes: a runner tube slidably held on a central shaft of the umbrella; a ferrule integrally circumferentially formed on the runner tube for pivotally securing a plurality of stretcher ribs of a rib assembly, which is provided for fastening an umbrella cloth on the rib assembly, by a fastening wire wound on the ferrule with the wire ends twisted and knotted in a socket formed on the inner ferrule; and a safety cover having a protective cap lockable on the ferrule for sheltering the wire ends in the socket of the ferrule, and having a pendent cover resiliently formed on a lower portion of the protective cap for sheltering a spring catch resiliently protruded from the central shaft for preventing injury to the user's finger as pricked by the spring catch.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: December 28, 1999
    Inventor: Tzun-Zong Wu
  • Patent number: 5911233
    Abstract: A safety umbrella runner includes: a runner tube slidably held on a central shaft of the umbrella; an inner ferrule integrally circumferentially formed on the runner tube, adapted for pivotally securing a plurality of ribs for fastening an umbrella cloth on the ribs, by a fastening wire wound on the inner ferrule and having wire ends twisted and knotted in a socket formed in the inner ferrule; and an outer ferrule snugly engaged with and disposed outside the inner ferrule for sheltering the wire ends for preventing the user or worker from being pricked by the wire ends, and having a pendent cover protruding from the outer ferrule for sheltering a spring catch resiliently protruded from the central shaft for preventing injury to the user's finger by the spring catch.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 15, 1999
    Inventor: Tzun-Zong Wu
  • Patent number: 5787912
    Abstract: A rib assembly adapted for use in an automatic umbrella includes: a top rib pivotally secured to an upper notch fixed on a top of a central shaft of the umbrella, a stretcher rib pivotally connected between the top rib and a runner slidably held on the central shaft, a middle rib pivotally secured between the top rib and a rear rib, and a spring rib pivotally connected between the top rib and the rear rib; characterized in that the spring rib has an inner rib portion formed with a convex spring portion overriding on a lug of a pair of lugs which are provided for pivotally connecting the middle rib with the top rib and a concave deflection portion deflecting the convex portion of the spring rib towards a U-shaped groove of the middle rib, thereby exerting spring force on the convex and concave portion for resiliently restoring the rib assembly from an unfolded state to a folded state for quickly closing the umbrella.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: August 4, 1998
    Inventor: Tzun-Zong Wu