Patents by Inventor Eduardo Barnetche-Gonzales

Eduardo Barnetche-Gonzales 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).

  • Multiple stage drag and dynamic pump
    Patent number: 5290145
    Abstract: A multiple stage drag and dynamic pump is provided for pumping fluid. The pump comprises a housing and a shaft positioned in the housing, the shaft rotating about the longitudinal axis of the housing. A rotor assembly has a plurality of pump stages mounted on the shaft for rotation therewith, each pump stage including a plurality of blades fixed to the shaft. The pump also includes a stator assembly having a plurality of flow directing stator elements, each of the stator elements being positioned between adjacent pump stages. Each of the stator elements has a wall and a diverter, wherein the wall is perpendicular to the axis of the shaft and the diverter is at an angle of less than 90.degree. with respect to the axis of the shaft.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: March 1, 1994
    Inventor: Eduardo Barnetche-Gonzales