Patents by Inventor Winton Oster

Winton Oster 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).

  • Spoolless string trimmer head
    Patent number: 4411069
    Abstract: A spoolless string trimmer head having a housing formed by a cover and a base which contains a coiled supply of trimming line. The lower housing member has a central opening and a radial passage for the trimming line so that the trimming line can be fed from the storage coil through the central opening and the radial passage to project radially-outwardly from the head. Several types of convenient clamping arrangements are disclosed which clamp the trimming line during operation of the trimmer and release the trimming line for feeding of replacement portions of the trimming line.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: October 25, 1983
    Assignee: McCulloch Corporation
    Inventors: Albert R. Close, Winton Oster
  • String trimmer
    Patent number: 4335510
    Abstract: A string trimmer having a handle, frame, motor and head. The head includes a housing formed by a cover and a base which contains a coiled supply of trimming line. The lower housing member has a central opening and a radial passage for the trimming line so that the trimming line can be fed from the storage coil through the central opening and the radial passage to project radially-outwardly from the head. Several types of convenient clamping arrangements are disclosed which clamp the trimming line during operation of the trimmer and release the trimming line for feeding of replacement portions of the trimming line.
    Type: Grant
    Filed: October 22, 1980
    Date of Patent: June 22, 1982
    Assignee: Black & Decker, Inc.
    Inventors: Albert R. Close, Winton Oster