Patents by Inventor Ming-Ching Wei

Ming-Ching Wei 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: 7059420
    Abstract: A gardening implement comprises a structure for fastening detachably a blade with a handle. The blade is provided at a fastening end with a deviation groove. The handle is provided at a fastening end with a fixation seat and a slide block slidably disposed in the fixation seat. The fixation seat is provided with a retaining slot. The slide block is provided with a retaining through hole. The blade is fastened with the handle such that the deviation groove of the blade is engaged with the retaining through hole of the slide block by virtue of the retaining through hole and the retaining slot being eccentric. As the slide block is activated to cause the retaining through hole to be concentric with the retaining slot, the deviation groove of the blade becomes disengaged with the retaining through hole to allow separation of the blade from the handle.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: June 13, 2006
    Inventor: Ming-Ching Wei
  • Patent number: 6257634
    Abstract: A litter picker comprises a pistol grip, an extension rod, a fixed tube, a movable tube, two claws, two link members, and a pull cord. The pistol grip has a trigger lever for actuating the pull cord so as to cause the movable tube to slide toward the fixed tube, thereby causing the claws to move toward each other to hold the litter. As the trigger lever is let go, the movable tube is forced by a recovery spring to move back to its original position, thereby enabling the two claws to move away from each other to release the litter.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: July 10, 2001
    Inventor: Ming-Ching Wei