Patents by Inventor Richard H. Johnston

Richard H. Johnston 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).

  • Lifting shoe assembly for use on sheet lifters
    Patent number: 5087167
    Abstract: An adjustable lifting shoe assembly for sheet or sheet package lifting devices is disclosed. The assembly enables a plurality of lifting shoes suspended from a reinforced back plate to be slid laterally along the back plate to stradle and/or be inserted between full-width cross runners or circumferential bands extending beneath the sheet or sheet package. Such a construction is generally suspended from a crane or hoist and is useful in lifting all types of sheet packages.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: February 11, 1992
    Assignee: Allegheny Ludlum Corporation
    Inventor: Richard H. Johnston
  • Coil protector for "C" hooks
    Patent number: 4717188
    Abstract: A protective attachment for the vertical leg of a "C" hook for lifting steel coils. The protective attachment surrounds the forward portion of the aforesaid vertical leg and is covered with shock-absorbing material to prevent damage to the edges of the steel coil as the hook is being inserted into the central opening of the coil prior to its being lifted by an overhead crane.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: January 5, 1988
    Assignee: Allegheny Ludlum Corporation
    Inventor: Richard H. Johnston
  • Cathode for use in electrolytic processing solution
    Patent number: 4484996
    Abstract: A cathode adapted for use in electrochemical processing for surface treatment of metal products in an electrolytic bath; the cathode is constructed from a core of copper or aluminum or combinations thereof, which core is clad with stainless steel. This cathode construction provides high electrical conductivity with a relatively low cost and lightweight cathode construction.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: November 27, 1984
    Assignee: Allegheny Ludlum Steel Corporation
    Inventors: Roy C. Bongartz, Richard H. Johnston, James J. Odasso, Donald R. Zaremski