Patents Represented by Attorney, Agent or Law Firm F. S. Gregorczyk
  • Slackless railcar connections with extractable wedge
    Patent number: 5035338
    Abstract: A gravity wedge shim includes a cavity and aperture at the top thereof and a lifting tool is extended through an opening in a sill ceiling above the wedge, inserted into the aperture and twisted so as to engage the wedge for lifting same.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: July 30, 1991
    Assignee: AMSTED Industries Incorporated
    Inventors: Horst T. Kaufhold, Russell G. Altherr