Patents by Inventor Ken Astley

Ken Astley 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 system for analysing tachometer and vibration data from an apparatus having one or more rotary components
    Patent number: 7640802
    Abstract: A method of analysing tachometer and vibration response data from an apparatus having one or more rotary components is provided. The method comprises the steps of: providing vibration response data and corresponding tachometer data from the apparatus for a period over which a rotary component of the apparatus varies in rotational speed, the tachometer data being for that component; repeatedly performing at intervals throughout the period the sub-steps of: determining a forcing frequency of the component from the tachometer data and a corresponding vibration response frequency of the apparatus from the vibration response data, comparing the forcing and vibration response frequencies to determine the relative phase difference between the frequencies, and determining the corresponding amplitude of the vibration response from the vibration response data; and plotting the relative phase differences and vibration amplitudes on a polar diagram.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: January 5, 2010
    Assignee: Oxford Biosignals Limited
    Inventors: Dennis King, Ken Astley, Lionel Tarassenko, Paul Anuzis, Paul Hayton, Stephen King
  • Method and system for analysing tachometer and vibration data from an apparatus having one or more rotary components
    Publication number: 20070006636
    Abstract: A method of analysing tachometer and vibration response data from an apparatus having one or more rotary components is provided. The method comprises the steps of: providing vibration response data and corresponding tachometer data from the apparatus for a period over which a rotary component of the apparatus varies in rotational speed, the tachometer data being for that component; repeatedly performing at intervals throughout the period the sub-steps of: determining a forcing frequency of the component from the tachometer data and a corresponding vibration response frequency of the apparatus from the vibration response data, comparing the forcing and vibration response frequencies to determine the relative phase difference between the frequencies, and determining the corresponding amplitude of the vibration response from the vibration response data; and plotting the relative phase differences and vibration amplitudes on a polar diagram.
    Type: Application
    Filed: April 8, 2004
    Publication date: January 11, 2007
    Applicant: Oxford Biosignals Limited
    Inventors: Dennis King, Ken Astley, Lionel Tarassenko, Paul Anuzis, Paul Hayton, Stephen King