Patents by Inventor Bernard F. Ladewski

Bernard F. Ladewski 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).

  • Thread stop for a screw jack
    Patent number: 4448392
    Abstract: A thread stop is provided for a screw jack including at least one elongated, substantially cylindrical screw member having an external thread. The thread stop comprises at least one radially outwardly deformed part in a predetermined portion of a minor diameter of said external thread. This formed part is formed by a method including ductilely outwardly deforming a predetermined portion of a minor thread diameter of the external thread, so as to retain the hardness of the deformed portion substantially similar to that of the remainder of the screw member.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: May 15, 1984
    Assignee: Auto Specialties Manufacturing Company
    Inventor: Bernard F. Ladewski