Patents by Inventor Richard A. Zielinski

Richard A. Zielinski 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).

  • Patent number: 4567811
    Abstract: A fluid operated cylinder device particularly adapted to lift a load relative to a load support includes a hollow casing having a closed end for attachment to the load support; an elongated rigid rod extending lengthwise of the casing and having a first end arranged within the casing and rigidly fixed to its closed end and a second end disposed outwardly of the casing for attachment to the load support; at least one open ended fluid operated cylinder arranged intermediate the casing and rod for sliding movements lengthwise thereof, such cylinder having an outer end disposed outwardly of the casing for attachment to the load; and fluid means for introducing and withdrawing fluid from the casing for effecting sliding movements of the cylinder and lifting and lowering of the load. Single and double acting embodiments of the cylinder device are disclosed.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: February 4, 1986
    Assignee: WSF Industries, Inc.
    Inventors: Henry J. Piegza, Richard A. Zielinski