Patents by Inventor David C. Persyn

David C. Persyn 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: 5031320
    Abstract: A hand held vacuum hair cutting device containing a turning plate, a stationary plate, and a positioning plate which can be adjusted to cut hair to a desired length. An electric motor turns a flexible rotating nylon trim line which is located between the stationary plate and the positioning plate. A fan creates a vacuum which pulls the hair through the turning plate, the stationary plate, and the positioning plate where the hair is cut to the desired length by the rotating nylon trim line. A filter is located between the fan and the nylon trim line which collects the hair. The length of hair to be cut is determined by holes in the turning plate that are opened and closed by rotating the turning plate relative to the stationary plate and positioning plate. When rotating the turning plate so that the holes in the low position, hair is cut short. Likewise, when rotating the turning plate so that the holes are in the high position, hair is cut long.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: July 16, 1991
    Inventor: David C. Persyn