Patents by Inventor Alan John Walker

Alan John Walker 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).

  • Bearing support structure for electro-magnet driven pump
    Patent number: 4043706
    Abstract: An electromagnetically driven pump having a rotor unit comprising a motor armature integral with a pump impeller and supporting bearing means mounting the rotor unit for rotation and limiting axial movement of the rotor unit in one axial direction and additional means for limiting movement of the rotor unit in an opposite axial direction.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: August 23, 1977
    Inventor: Alan John Walker
  • Magnetic coupling
    Patent number: 3936683
    Abstract: In a magnetic transmission device a torque magnetic ring having an even number of axially aligned bars of highly magnetic material is rotatable mounted relative to at least one of two magnetic pole rings for transmitting torque between the pole rings.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: February 3, 1976
    Inventor: Alan John Walker