Patents by Inventor Nelson Groom

Nelson Groom 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).

  • Magnetically suspended miniature fluid pump and method of designing the same
    Patent number: 6447265
    Abstract: A rotary pump for pumping fluids through a patient having a housing with an internal region, a stator member and an impeller positioned within the housing and having impeller blades, wherein the impeller is magnetically suspended and rotated, and wherein the geometric configuration of the rotary pump is sized and proportioned to minimize stagnant and traumatic fluid flow within the rotary pump. The plurality of magnetic impeller blades are preferably rare earth, high-energy-density magnets selected from the group consisting of samarium cobalt and neodymium-iron-boron alloy.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: September 10, 2002
    Assignees: The University of Pittsburgh, The United States of America as represented by the United States National Aeronautics and Space Administration
    Inventors: James F. Antaki, Bradley Paden, Gregory Burgreen, Nelson Groom
  • Magnetically suspended miniature fluid pump and method of designing the same
    Patent number: 6015272
    Abstract: A rotary pump for pumping fluids through a patient having a housing with an internal region, a stator member and an impeller positioned within the housing and having impeller blades, wherein the impeller is magnetically suspended and rotated, and wherein the geometric configuration of the rotary pump is sized and proportioned to minimize stagnant and traumatic fluid flow within the rotary pump. The plurality of magnetic impeller blades are preferably rare earth, high-energy-density magnets selected from the group consisting of samarium cobalt and neodymium-iron-boron alloy.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: January 18, 2000
    Assignees: University of Pittsburgh, The United States of America as represented by Administrator of the National Aeronautics and Space Administration
    Inventors: James F. Antaki, Bradley Paden, Gregory Burgreen, Nelson Groom