Patents by Inventor R. Michael Riordan

R. Michael Riordan 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).

  • Gear pump bearings
    Patent number: 4682938
    Abstract: Variations in pump capacity of gear pumps due to varying leakage paths occurring in otherwise identical pumps as a result of the manufacturing operation are minimized without unduly hindering the fitting of the bearings through the pump housing by maintaining the distance "TBD" between the center of the bearing journal and the bearing flat closely within tolerances and by providing a relief in the bearing periphery diametrically opposite of the flat.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: July 28, 1987
    Assignee: Sundstrand Corporation
    Inventor: R. Michael Riordan