Patents by Inventor Eric R. Cassidy

Eric R. Cassidy 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: 5246067
    Abstract: A leak catcher for use on a pumping well around a polished rod operating a downhole pump in the well including an annular drip bowl connected with a base securable to the upper end of a well casing around a polished rod, a drain line fitting opening into a side of the drip bowl, a leak collection well formed in the bottom of the drip bowl, a horizontal liquid level switch mounted to a side of the liquid collection well, a drain valve mounted horizontally through a side of the liquid collection well, a removable hood securable to the drip bowl, and a polished rod lubricator assembly secured in the top of the hood around a polished rod. The hood may be either a solid cylindrical member formed of opaque metal or transparent plastic or may include hinged doors for access into the leak catcher without removal of the hood.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: September 21, 1993
    Assignee: Double-E Inc.
    Inventors: Robert L. Heinonen, James A. Wilson, Eric R. Cassidy