Patents by Inventor Calvin E. Moeller

Calvin E. Moeller 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).

  • Unitary spring armature for a dot matrix printer
    Patent number: 4771689
    Abstract: An elongated unitary spring armature is disclosed for use in dot matrix printers. The spring armature has an elongated triangular shape with attachment means located adjacent to the base and means for securing the impact tip located adjacent to the apex. A spring portion formed of a high carbon steel is located adjacent to the attachment means and an armature portion formed of a low carbon steel separates the spring portion from the apex. Processes for making the spring armature are also disclosed.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: September 20, 1988
    Assignee: Dataproducts Corporation
    Inventors: Aram S. Arzoumanian, Calvin E. Moeller, Kam C. Wong