Patents by Inventor Donald E. Kolbfleisch

Donald E. Kolbfleisch 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).

  • Counterbalance assembly for diagnostic imaging equipment
    Patent number: 4989229
    Abstract: A counterbalance assembly (A) provides support for diagnostic imaging equipment such as an x-ray source (B). A fluid spring (F) is utilized to counteract the weight of the source and provide controlled movement of the source. A one-way clutch (100) cooperates with an arm assembly (E) that interconnects a source mounting member (D) with a base member (C) to limit movement of the arm and source. A locking assembly (112) is associated with the clutch to selectively actuate and deactuate the clutch.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: January 29, 1991
    Assignee: Picker International, Inc.
    Inventors: Donald E. Negrelli, Donald E. Kolbfleisch, Anthony D. Szpak