Patents by Inventor Edward O. Meisner

Edward O. Meisner 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).

  • Seal for gas spring
    Patent number: 5011121
    Abstract: A gas spring having a cylinder, a piston within the cylinder and a piston rod projecting out of the cylinder. A seal between the rod and cylinder is formed by a cup-shaped member presenting an inwardly-projecting skirt that functions as a one-way check valve. A second or inner seal may be optionally placed within the cup-shaped member to form a lubricant-retaining chamber.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: April 30, 1991
    Assignee: Eagle-Picher Industries, Inc.
    Inventors: Ralph Oriola, Charles F. Romine, Edward O. Meisner
  • Valve stem seal
    Patent number: 4695061
    Abstract: The seal for a valve stem wherein a sleeve-like seal has alternating grooves and lands surrounding the valve stem. The lands have frustoconical surfaces, the opposed surfaces on each land having different angular relationships to the axis of the valve stem to promote the flow of lubricating oil in the desired direction.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: September 22, 1987
    Assignee: Eagle-Picher Industries, Inc.
    Inventors: Edward O. Meisner, Charles F. Romine