Patents by Inventor Teresa L. Mueller

Teresa L. Mueller 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).

  • Weed extracting tool
    Patent number: 4715634
    Abstract: A weed extracting tool includes an elongated shaft having a handle at its upper end and a cutting head at its lower end. The cutting head includes a tubular housing and a semi-circular blade depending from the housing. An ejector device is reciprocable within the tubular housing for clearing weeds and soil from the cutting head. The ejector is biased to an extended position by means of a compression spring. A latching device holds the ejector in a retracted position against the bias of the spring.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: December 29, 1987
    Inventors: Teresa L. Mueller, Michael W. Mueller