Patents by Inventor Walter Sprung

Walter Sprung 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: 4174569
    Abstract: An electric razor is disclosed which comprises a housing having a shearing head, a shearing comb disposed within the head and having openings permitting hair protruding from a surface to enter into an interior of the comb, and a blade beam carrier which mounts an elongated blade beam and which is oscillated relative to the comb for severing hair extending through the comb openings. A connecting member driven by an electric motor engages and oscillates the blade beam. A reduction drive is provided for oscillating the shearing comb at a lesser frequency than the blade beam in generally three directions, a first direction substantially parallel to the oscillating direction of the blade beam, a second direction which is transverse thereto, and a third direction which lifts the shearing comb off the skin being shaved.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: November 20, 1979
    Inventors: Hans Schenk, Maria Sprung, Walter Sprung