Patents by Inventor Lothar Sommer

Lothar Sommer 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: 4993860
    Abstract: An applying device is described comprising a container 10 for liquid applying medium the filling opening 40 thereof is provided with an applying element 34. A ball 40 is located in the outlet opening 38 partially extending beyond the outlet opening. The outlet opening is connected to the internal space 20 of the reservoir 10 through a central hollow space 36. A spring element 48 located in the central hollow space 36 of the applying element 34 urges the ball 40 against the outlet opening for a closure thereof. The spring element 48 includes a rod-like portion 50 which is adapted to be laterally resiliently arched if a pressure is exerted on the ball. The rod-like portion 50 of the spring element 48 engages the ball 40 by an end portion. The opposite second end portion of the spring element 48 is secured in the central hollow space 36 of the applying element 34.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: February 19, 1991
    Inventor: Lothar Sommer
  • Patent number: 4101225
    Abstract: The invention relates to an applicator, especially for pigmented liquids, including a container for the liquid, open at one end, but closable by means of a handle which can be fitted on its open end. The handle element carries a shaft and on the free end thereof is provided an overhanging capillary applicator tip. In order to ensure, on the one hand, in such an instrument, a reliable feed of the applicator tip with the liquid and, on the other hand, to prevent an unintentional emergence, especially splashing, of liquid when the instrument is open, it is proposed, according to the principle of the invention, to close the liquid container by means of an inset element, which has transverse slots forming capillary channels, which slots on the one hand reliably convey the liquid to the applicator tip and, on the other hand, prevent excessive issue of liquid.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: July 18, 1978
    Inventors: Friedrich Linz, Lothar Sommer