Patents by Inventor Karl Farber

Karl Farber 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: 4231669
    Abstract: A device for receiving a writing implement has a housing, a resiliently yieldable sealing member in the housing and adapted to sealingly abut against a writing tubular member of the writing implement, and a wetting member in the housing and located in spaced relationship with a pressure-equalizing passage of the writing implement as well as communicating with the passage. The resiliently yieldable member may be composed of two axially movable balls which are received in a cylindrical portion of the housing and axially limited by two axially spaced collars. The cylindrical portion may be connected with a conical extension which, in turn, may be connected with a further cylindrical portion received in the receiving opening of the housing. These portions may be of one-piece with each other so as to form a one-piece insert member.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: November 4, 1980
    Assignee: A.W. Faber-Castell
    Inventors: Rudolf Rosbiegalle, Karl Farber, Herbert Grimm, Helmut Schmeisser, Hermann Schonhut, Svatopluk Krumnikl, Gunter Edel