Patents by Inventor William E. Fairweather

William E. Fairweather 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: 4208760
    Abstract: Apparatus and method in which a number of thin, disc-like wafers are moved in an arcuate path while supported in a generally upright position. While so supported, the wafers are indexed between a plurality of cleaning stations which may include a scrub station, a scrub rinse station, a rinse station, and a dry station. In the scrub rinse and/or scrub station, the wafers are rotated while contacted on opposite surfaces thereof by a pair of rotating brushes disposed in a closed position, which brushes may be moved to an open position to accommodate movement of the wafers therebetween. Furthermore, a bracket of unique construction serially moves the wafers into the travel path. Means for introducing the wafers to the path and for removing them therefrom are further included.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: June 24, 1980
    Assignee: Huestis Machine Corp.
    Inventors: Jeffrey L. Dexter, William E. Fairweather, Harold R. Shurtleff