Patents by Inventor John Julian A. Williams

John Julian A. Williams 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).

  • Electrical machine
    Patent number: 9634529
    Abstract: A method of making generally symmetrical lamination stacks for electrical machines comprises producing generally symmetrical pole tips from alternating asymmetrical pieces that each have an additional layer in the asymmetrical portion. With the alternating asymmetrical pieces combined, the resulting pole tip is generally symmetrical with a larger possible pole tip width compared with currently-used interleaved stamping techniques.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: April 25, 2017
    Assignee: Fisher & Paykel Appliances Ltd.
    Inventors: Gregory P. Hill, John Julian A. Williams, Gerald D. Duncan, Kerrin E. Burnnand, Mark G. Benson
  • Spaceborne scatterometer
    Patent number: 6137437
    Abstract: A scatterometer orbiting around the earth globe comprises a single fanbeam radar antenna which is rotated around a vertical axis, at a slow rotation rate. The antenna foot-print sweeps a circular disc. The slow conical sweep combined with the motion of the satellite on which the scatterometer is mounted results in highly overlapping successive sweeps such that an image pixel is revisited many times during an overpass. The pixels in the radial direction are resolved by range-gating the radar echo. The radar operates in the C-band. The scatterometer is intended, in particular, to determine wind speed and direction over the ocean.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: October 24, 2000
    Assignee: Agence Spatiale Europeenne
    Inventors: Chung-Chi Lin, John Julian William Wilson, Fabrizio Impagnatiello, Peter Park
  • Laundry machines and/or methods of controlling the same
    Patent number: 5271116
    Abstract: A method of providing a desired water level in a laundry machine by energising the motor of the machine intermittently to produce changes in velocity of the spin tub, agitator and a load of clothes in the spin tub.The changes in velocity are measured and from the measurements the mass of the load of clothes is determined. A desired volume of water necessary for an optimum wash of the load of clothes is then determined and this volume of water is admitted to the washing container of the laundry machine.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: December 21, 1993
    Assignee: Fisher & Paykel Limited
    Inventors: John Julian A. Williams, Frank W. Shacklock, David J. Ensor
  • Laudry machines and/or methods of controlling the same
    Patent number: 5208931
    Abstract: A method, control device and appartaus for providing a desired water level in a laundry machine (1) by energizing the motor (10) of the machine intermittently to produce changes in velocity of the spin tub (3), agitator (4) and a load of clothes in the spin tub. The changes in velocity are measured and from the measurements the mass of the load of clothes is determined. A desired volume of water necessary for an optimum wash of the load of clothes is then determined and this volume of water is admitted (17) to the washing container (2) of the laundry machine.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: May 11, 1993
    Assignee: Fisher & Paykel Limited
    Inventors: John Julian A. Williams, Frank W. Shacklock, David J. Ensor