Patents by Inventor Ching K. Wu

Ching K. 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).

  • Patent number: 5029727
    Abstract: A tooth-pick dispenser includes a housing having a top formed with a first opening for filling tooth-picks into a tooth-pick chamber and an elongated delivery opening, a floor-like member serving as a bottom of the tooth-pick chamber and supported in the housing to inclined substantially towards the delivery opening of the top of the housing and terminated with an groove locating an elongated opening vertically in alignment with the delivery opening and an oscillation member pivotally mounted in the housing in a rotatable state, whereby the oscillation member can be swung to a feeding position allowing tooth-picks loaded in the tooth-pick chamber to movve along the inclined bottom so as to feed tooth-pick, one tooth-pick at a time, into the groove of the floor-like member and the oscillation member will be automatically retracted by a spring for discharging a tooth-pick through the delivery opening and serving it to a user in a convenient position.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: July 9, 1991
    Inventor: Ching K. Wu
  • Patent number: 4995174
    Abstract: A shoe with a placement track on the front perimeter of its sole which slidably receives a toe cover in it. The toe cover includes a sheath or covering portion and a rim portion. The rim portion has apertures at its ends in order to receive and engage with securement wedges at the ends of said placement track.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: February 26, 1991
    Inventors: Ming-Che Hong, Ching K. Wu, Martin Lee
  • Patent number: 4958746
    Abstract: A tooth-pick dispenser includes a housing a perforated top and a vertical side wall having an opening, a tooth-pick pickup device simulating a seagull and for oscillating movement supported on a top of the housing for supplying a tooth-pick, a drawer reciprocable in the opening of the vertical side wall of the housing between a toothpick receiving position in the housing and a tooth-pick delivery position exterior of the housing, and having a reciprocable body for catching a tooth-pick in the delivery position and conveying it to the delivery position and a link mechanism interconnecting the pickup device and the drawer, whereby the pickup device can be swung to a pickup position so as to operate the link mechanism to move the drawer to its delivery position, and the drawer will be automatically retracked a spring to operate the link mechanism to swing the pickup device back to a raised dispensing position for serving a tooth-pick to a user in a convenient position.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: September 25, 1990
    Inventor: Ching K. Wu