Patents by Inventor Yung-Chang Kuo

Yung-Chang Kuo 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: 20070114800
    Abstract: A universal door lockset adaptable to RH or LH mounting configuration and the opening mode by push or pull by adjusting to change the direction of a latch and displacement of a retainer of a deadbolt; latch bolt and latch being screwed to each other; a tool being inserted into a through hole preset at the rear end of a housing for the latch to clear out of a faceplate so to directly turn the latch backward; by turning the latch bolt in opposite direction to force the latch to retreat in locking position, two sets of positioning hole and guide groove being provided to the rear end of the deadbolt to allow insertion of the tool to push the retainer for changing the relation of the deadbolt with an inner and outer retaining units of the deadbolt in conjunction with the 2-in-1 design of rotors.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 24, 2007
    Inventor: Yung-Chang Kuo
  • Publication number: 20060138173
    Abstract: A manually chargeable flash light comprises a casing, a lamp, and a power system, wherein the lamp is at least an LED (Light Emitting Diode), and the power system is composed of a gear set mechanism, a mini power generator, and an accumulator. The gear set mechanism is connected with a handle, which is connected with a handle arm outside the casing. Comparing to the current techniques, the present invention uses a manually driven power source to replace the conventional battery power, thereby guaranteeing power supply at any time without exchanging batteries. Therefore, the troublesome of depleting batteries without backup can be avoided, and energy can be saved due to the high efficiency of LED. Furthermore, it will not cause the pollution to the environment by waste batteries.
    Type: Application
    Filed: December 27, 2004
    Publication date: June 29, 2006
    Inventor: Yung-Chang Kuo
  • Patent number: D351331
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: October 11, 1994
    Assignee: CEDPO Metal Corporation
    Inventor: Yung-Chang Kuo