Patents by Inventor Ming-Tien Wei

Ming-Tien 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).

  • Interchangeable head for a rake
    Patent number: 5852923
    Abstract: An rake is provided with a interchangeable head comprising a main body having a plurality of prongs attached thereto. The main body further has a neck opposite in location to the prongs for fastening a handle of the rake. The neck is provided with a movable press rod which is fastened pivotally therewith and is provided with a protruded surface. The neck is further provided with a movable press piece for fastening pivotally the press rod. The main body is provided with a protective slot for enclosing the pointed ends of the prongs.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: December 29, 1998
    Inventor: Ming-Tien Wei