Patents by Inventor Kurt Liffman

Kurt Liffman 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).

  • Method and device for separating particulate material
    Patent number: 7448500
    Abstract: A method of separating particulate material of differing size or density including the steps of: tumbling the particulate material to produce continuous or discrete avalanches (19) in the surface of the particulate material to move particles of smaller size (14) or higher density (22) towards the centre of the particulate material and particles of larger size (16) or lower density (24) radially outward from the centre of the particulate material; and extracting particles at selected radial locations (8, 10). A device for separating particulate material of differing size or density is also provided.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: November 11, 2008
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Guy Parker Metcalfe, III, Kurt Liffman
  • Endoluminal graft
    Patent number: 7108715
    Abstract: A graft (1) which is in the form of an inflatable member adapted to be formed into a predetermined and/or selected shape when deployed in situ by filling with a filler material (6) which can be made rigid in situ and deployed on a balloon catheter (12). The deployment balloon (13) is formed from a non-compliant material.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: September 19, 2006
    Assignees: Cook Incorporated, William A. Cook Australia Pty Ltd.
    Inventors: Michael Lawrence-Brown, Kurt Liffman, David Ernest Hartley
  • Method and device for separating particulate material
    Publication number: 20040251181
    Abstract: A method of separating particulate material of differing size or density including the steps of: tumbling the particulate material to produce continuous or discrete avalanches (19) in the surface of the particulate material to move particles of smaller size (14) or higher density (22) towards the centre of the particulate material and particles of larger size (16) or lower density (24) radially outward from the centre of the particulate material; and extracting particles at selected radial locations (8, 10). A device for separating particulate material of differing size or density is also provided.
    Type: Application
    Filed: July 23, 2004
    Publication date: December 16, 2004
    Inventors: Guy Parker Metcalfe, III, Kurt Liffman
  • Endoluminal graft
    Publication number: 20030093145
    Abstract: A graft (1) which is in the form of an inflatable member adapted to be formed into a predetermined and/or selected shape when deployed in situ by filling with a filler material (6) which can be made rigid in situ and deployed on a balloon catheter (12). The deployment balloon (13) is formed from a non-compliant material.
    Type: Application
    Filed: October 24, 2002
    Publication date: May 15, 2003
    Applicant: Cook Incorporated
    Inventors: Michael Lawrence-Brown, Kurt Liffman, David Ernest Hartley