Patents by Inventor Otto Heim

Otto Heim 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).

  • Feed mechanism for a writing device
    Patent number: 4943175
    Abstract: A feed mechanism for a writing device comprising a writing medium carrier which is displaceable in a housing in a front and rear position by means of a press button. Connected with the press button is a rotatable switching element which comprises a circulating switching cam in which a carrier element engages. A spring is arranged between the carrier element and a locking element, and the locking element comprises a spring arm with a supporting surface which engages in an opposed surface at the housing.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: July 24, 1990
    Assignee: A.W. Faber-Castell GmbH & Co.
    Inventor: Otto Heim