Patents by Inventor John E. Dackow

John E. Dackow 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).

  • Externally spring-loaded slip shaft
    Patent number: 4911034
    Abstract: A shaft slides within a tube. A relatively high-rate leaf spring is positioned to exert its force against the outer surface of the shaft. The leaf spring provides optimal sliding force between the shaft and the tube with minimum friction, while also functioning to minimize rotational lash. Indents located on the exterior surface of the tube are directed radially inward to further minimize rotational lash.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: March 27, 1990
    Assignee: The Torrington Company
    Inventors: David Kulczyk, John E. Dackow