Patents by Inventor Walter Ryborz

Walter Ryborz 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).

  • Housing part for a propeller pump
    Patent number: 6042332
    Abstract: A housing for surrounding the impeller of a propeller pump, the housing having a gap ring disposed in a housing bore in the interior thereof, the gap ring being open at its circumference and in the uninstalled state having an outside diameter which is greater than the diameter of the bore which receives it, while in the installed state being pressed with bias against the housing bore which accommodates it due to the reduction of the ring's diameter. The gap ring of the invention which is open at its circumference advantageously reduces the cost of manufacture and assembly of gap rings for propeller pumps.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: March 28, 2000
    Assignee: KSB Aktiengesellschaft
    Inventors: Wolfgang Kochanowski, Ruediger Hamann, Walter Ryborz