Patents by Inventor Peter Kevin Grannell

Peter Kevin Grannell 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).

  • Patent number: 4021726
    Abstract: Nuclear magnetic resonance apparatus designed to enable two and three dimensional images of objects to be obtained has coils for applying a static magnetic field and for applying magnetic gradients to the field in each of three orthogonal directions over the entire volume of a sample and a radio frequency signal generator for applying signals having selected frequency components simultaneously with the magnetic field gradients. In use the spins in all regions of a sample except a slice are saturated or excited in the presence of one magnetic field gradient then a slot in the slice is energized in the presence of a second magnetic field gradient and the free induction decay from the slot read out in the presence of a third gradient. The procedure is repeated for successive slots in a slice and for successive slices.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: May 3, 1977
    Assignee: National Research Development Corporation
    Inventors: Allen Nathan Garroway, Peter Kevin Grannell, Peter Mansfield