Patents by Inventor Andrew John Bell

Andrew John Bell 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).

  • PROCESS FOR ANNEALING A POLED CERAMIC
    Publication number: 20210143318
    Abstract: The present invention relates to a process for annealing a poled ceramic over a heating period during which the temperature is raised incrementally to “lock-in” desirable high temperature characteristics.
    Type: Application
    Filed: June 12, 2019
    Publication date: May 13, 2021
    Applicant: Ionix Advanced Technologies Ltd
    Inventors: Andrew John BELL, Timothy Paul, Alistair COMYN
  • CERAMIC
    Publication number: 20180315916
    Abstract: The present invention relates to a ceramic comprising (or consisting essentially of) a solid solution containing Bi, K, Ti and Fe (and optionally Pb) which exhibits piezoelectric behaviour.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 1, 2018
    Applicant: Ionix Advanced Technologies Limited
    Inventors: Andrew John BELL, Timothy COMYN
  • Ceramic
    Patent number: 10020442
    Abstract: The present invention relates to a ceramic comprising (or consisting essentially of) a solid solution containing Bi, K, Ti and Fe (and optionally Pb) which exhibits piezoelectric behavior.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 10, 2018
    Assignee: Ionix Advanced Technologies Limited
    Inventors: Andrew John Bell, Timothy Comyn
  • CERAMIC
    Publication number: 20160225977
    Abstract: The present invention relates to a ceramic comprising (or consisting essentially of) a solid solution containing Bi, K, Ti and Fe (and optionally Pb) which exhibits piezoelectric behaviour.
    Type: Application
    Filed: December 28, 2015
    Publication date: August 4, 2016
    Applicant: lonix Advanced Technologies Limited
    Inventors: Andrew John BELL, Timothy COMYN
  • Ceramic
    Patent number: 9312469
    Abstract: The present invention relates to a ceramic comprising (or consisting essentially of) a solid solution containing Bi, K, Ti and Fe (and optionally Pb) which exhibits piezoelectric behavior.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: April 12, 2016
    Assignee: University of Leeds
    Inventors: Andrew John Bell, Timothy Comyn
  • CERAMIC
    Publication number: 20130207020
    Abstract: The present invention relates to a ceramic comprising (or consisting essentially of) a solid solution containing Bi, K, Ti and Fe (and optionally Pb) which exhibits piezoelectric behaviour.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 15, 2013
    Applicant: UNIVERSITY OF LEEDS
    Inventors: Andrew John Bell, Timothy Comyn
  • Piezoelectric materials
    Patent number: 7928637
    Abstract: A piezoelectric perovskite mixed oxide compound has the general formula (BiFeO3)x—(PbTiO3)1-x and contains up to 5 at % lanthanum or other rare earth substitution, in which x has a value in the range 0.5 to 0.9. Such compounds are capable of withstanding gas turbine operating temperatures and are suitable for use in sensing and actuation functions in aerospace and other applications.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: April 19, 2011
    Assignee: Goodrich Control Systems
    Inventors: Timothy Comyn, Andrew John Bell
  • Piezoelectric materials
    Publication number: 20090236947
    Abstract: A piezoelectric perovskite mixed oxide compound has the general formula (BiFeO3)x—(PbTiO3)1-X and contains up to 5 at % lanthanum or other rare earth substitution, in which x has a value in the range 0.5 to 0.9. Such compounds are capable of withstanding gas turbine operating temperatures and are suitable for use in sensing and actuation functions in aerospace and other applications.
    Type: Application
    Filed: September 20, 2005
    Publication date: September 24, 2009
    Applicant: Goodrich Control Systems Limited
    Inventors: Timothy Comyn, Andrew John Bell
  • Corona ionization source
    Patent number: 6822226
    Abstract: A corona discharge ionization source is disclosed in which neutral species are removed by directing a flow of oxygen containing gas in a direction substantially different to that of the ion flow. The ion profiles produced are similar in many respects to those produced by a 63Ni source, thus an alternative, non-radioactive, ion source is offered.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: November 23, 2004
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Stuart Keith Ross, Andrew John Bell
  • Corona ionisation source
    Publication number: 20040079879
    Abstract: A corona discharge ionisation source is disclosed in which neutral species are removed by directing a flow of oxygen containing gas in a direction substantially different to that of the ion flow. The ion profiles produced are similar in many respects to those produced by a 63Ni source, thus an alternative, non-radioactive, ion source is offered.
    Type: Application
    Filed: September 16, 2003
    Publication date: April 29, 2004
    Inventors: Stuart Keith Ross, Andrew John Bell