Patents by Inventor Keith Maxwell

Keith Maxwell 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: 10270292
    Abstract: A wireless power transmission system comprising a transmitting inverted Tesla Coil or Magnifier connected to the ground by its high voltage terminal using a capacitive earth connection and transmitting power through the ground to a subsequent receiving Tesla Coil or Magnifier being well earthed through a capacitive earth connection or conventional earth with the distance between the two earth connections of the transmitter and receiver plus the length of the coils in the transmitter and receiver forming a tuned length and the system thus composed being operated at a frequency that is an harmonic or close to an harmonic of the tuned length thus established.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: April 23, 2019
    Inventor: Keith Maxwell Howard
  • Publication number: 20150042172
    Abstract: A wireless power transmission system comprising a transmitting inverted Tesla Coil or Magnifier connected to the ground by its high voltage terminal using a capacitive earth connection and transmitting power through the ground to a subsequent receiving Tesla Coil or Magnifier being well earthed through a capacitive earth connection or conventional earth with the distance between the two earth connections of the transmitter and receiver plus the length of the coils in the transmitter and receiver forming a tuned length and the system thus composed being operated at a frequency that is an harmonic or close to an harmonic of the tuned length thus established.
    Type: Application
    Filed: January 3, 2013
    Publication date: February 12, 2015
    Inventor: Keith Maxwell HOWARD
  • Patent number: 5681311
    Abstract: A bone fixation apparatus having an elongated plate member with at least two pairs of circular openings and a series of openings positioned along the longitudinal plane of the plate member with the circular openings and the series of openings each having a central vertical axis. The circular openings and series of openings each form a cavity with walls extending between the upper and lower plate member surfaces with at least a plurality of the cavities having smaller diameter portions at the plate member upper and lower surfaces and a larger diameter portion therebetween. The cavities are configured in the shape of two inverted cones with matching base circles for allowing transverse and longitudinal angulation of an implanted bone screw. A plurality of bone screws each have a threaded first end portion adapted for implantation into a patient's bone mass and a generally ellipsoid shaped enlarged second end portion.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: October 28, 1997
    Assignee: Smith & Nephew, Inc.
    Inventors: Kevin T. Foley, Peter M. Klara, Keith Maxwell, Lance Middleton, Matthew M. Morrison