Patents by Inventor Karl Knees

Karl Knees 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).

  • Shaver head for a dry shaver
    Patent number: 4707916
    Abstract: A shaver head with a shaver head frame (1), which supports a curved, perforated shaver foil (2) which is fitted by means of its apertures (11, 12) provided in the vicinity of its longitudinal edges onto hooks (7, 8) projecting from the longitudinal sections (3, 4) of the shaver head frame. The perforated shaver foil is provided on its outer side facing the longitudinal sections of the shaver head frame in the vicinity of each of its two longitudinal edges with at least one projecting attachment (13, 14), spaced apart from the free end (15, 16) of the adjacent longitudinal section, which is smaller than the depth (t) of the hooks projecting from the longitudinal sections and which with its upward extension projects at least into the dimensional range (w) of the wall thickness of the longitudinal sections in the vicinity of their free ends (FIG. 1).
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: November 24, 1987
    Assignee: U.S. Philips Corporation
    Inventors: Werner Kness, Karl Knees