Patents by Inventor Paul MacKenzie

Paul MacKenzie 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).

  • Publication number: 20200348275
    Abstract: There is disclosed a method of calibrating a gas sensor comprising a luminescent compound having a luminescence lifetime that is quenched by a gaseous substance which uses a model of the relationship between the luminescence lifetime and the concentration of the gaseous substance that is modified by a calibration factor representing a proportion of the compound not being exposed to the gaseous substance, the method comprising: measuring values of the luminescence lifetime of the luminescent compound while the gas sensor is exposed to at least two known concentrations of the gaseous substance; and deriving the calibration factor from the measured values of the luminescence lifetime using the model. Also disclosed are a corresponding gas sensor apparatus for measuring the concentration of a gaseous substance in an environment, and method of measuring a concentration of a gaseous substance in an environment using a gas sensor.
    Type: Application
    Filed: May 2, 2019
    Publication date: November 5, 2020
    Inventors: ALASDAIR ALLAN MACKENZIE, BARRY COLIN CRANE, NICHOLAS PAUL BARWELL, PRAVEEN SAGAR
  • Patent number: 10646877
    Abstract: A system for adjusting a depth of a material bed in a pulverizer mill is provided. The system includes a rotatable bowl, an extension ring, and an extension mechanism. The rotatable bowl has a surface operative to support the material bed while the bowl rotates such that particles of the material bed are pulverized against the surface by one or more grinding rollers of the pulverizer mill. The extension ring is disposed about a circumference of the rotatable bowl extending away from the surface and defines a depth of the material bed. The extension mechanism adjusts at least one of the extension ring and the rotatable bowl while the rotatable bowl rotates. Adjusting at least one of the extension ring and the rotatable bowl via the extension mechanism moves the extension ring in relation to the surface so as to adjust the depth of the material bed.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 12, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Paul Mackenzie Colson
  • Publication number: 20190270087
    Abstract: A system for servicing a pulverizer includes a pulverizer having a housing, a journal assembly pivotally connected to the housing, a grinding mechanism operatively connected to the journal assembly, and an opening within the housing adjacent to the journal assembly and providing an access point to an interior of the housing, and a hoist apparatus mounted to the housing. The hoist apparatus includes a frame assembly received about the opening in the housing, a sheave assembly including a plurality of sheaves supported by the frame assembly, a motor operatively connected to one of the plurality of sheaves, and a cable received by the sheave assembly. The motor is operable to at least one of retract the cable through the sheave assembly to rotate a component out of the pulverizer through the opening and controllably let out the cable to rotate the component into the pulverizer through the opening.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Inventor: PAUL MACKENZIE COLSON
  • Patent number: 10343173
    Abstract: A system for servicing a pulverizer includes a pulverizer having a housing, a journal assembly pivotally connected to the housing, a grinding mechanism operatively connected to the journal assembly, and an opening within the housing adjacent to the journal assembly and providing an access point to an interior of the housing, and a hoist apparatus mounted to the housing. The hoist apparatus includes a frame assembly received about the opening in the housing, a sheave assembly including a plurality of sheaves supported by the frame assembly, a motor operatively connected to one of the plurality of sheaves, and a cable received by the sheave assembly. The motor is operable to at least one of retract the cable through the sheave assembly to rotate a component out of the pulverizer through the opening and controllably let out the cable to rotate the component into the pulverizer through the opening.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 9, 2019
    Assignee: General Electric Technology GmbH
    Inventor: Paul MacKenzie Colson
  • Publication number: 20180257085
    Abstract: A system for adjusting a depth of a material bed in a pulverizer mill is provided. The system includes a rotatable bowl, an extension ring, and an extension mechanism. The rotatable bowl has a surface operative to support the material bed while the bowl rotates such that particles of the material bed are pulverized against the surface by one or more grinding rollers of the pulverizer mill. The extension ring is disposed about a circumference of the rotatable bowl extending away from the surface and defines a depth of the material bed. The extension mechanism adjusts at least one of the extension ring and the rotatable bowl while the rotatable bowl rotates. Adjusting at least one of the extension ring and the rotatable bowl via the extension mechanism moves the extension ring in relation to the surface so as to adjust the depth of the material bed.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 13, 2018
    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: PAUL MACKENZIE COLSON
  • Publication number: 20170312753
    Abstract: A system for servicing a pulverizer includes a pulverizer having a housing, a journal assembly pivotally connected to the housing, a grinding mechanism operatively connected to the journal assembly, and an opening within the housing adjacent to the journal assembly and providing an access point to an interior of the housing, and a hoist apparatus mounted to the housing. The hoist apparatus includes a frame assembly received about the opening in the housing, a sheave assembly including a plurality of sheaves supported by the frame assembly, a motor operatively connected to one of the plurality of sheaves, and a cable received by the sheave assembly. The motor is operable to at least one of retract the cable through the sheave assembly to rotate a component out of the pulverizer through the opening and controllably let out the cable to rotate the component into the pulverizer through the opening.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 2, 2017
    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: PAUL MACKENZIE COLSON
  • Patent number: 9296869
    Abstract: A prepreg comprising a structural layer of packed unidirectional conductive fibres comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and being essentially free of unidirectional conductive fibres, which when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed unidirectional conductive fibres and a first outer layer of cured resin comprising unidirectional conductive fibres dispersed within.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: March 29, 2016
    Assignee: Hexcel Composites Limited
    Inventors: John Ellis, Emille Fisset, David Tilbrook, Paul Mackenzie
  • Patent number: 9051444
    Abstract: A process for the manufacture of a prepreg comprising feeding a layer of unidirectional conductive fibers having a defined width, bringing into contact with a first face of the fibers a first layer of resin comprising thermosetting resin, and compressing the resin and fibers together by passing over one or more impregnation rollers, wherein the pressure exerted onto the conductive fibers and resin does not exceed 40 kg per centimeter of the width of the conductive fibers, and the resin being in sufficient amount for the resin to enter the interstices of the fibers and leave a first outer layer of resin essentially free of unidirectional conductive fibers.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: June 9, 2015
    Assignees: Hexcel Composites Limited, Hexcel Composites, S.A.S.
    Inventors: John Ellis, Emille Fisset, David Tilbrook, Paul Mackenzie, Isabelle Blanc, Lucien Fiore, Bernadette Tizon
  • Patent number: 9051060
    Abstract: A curable flexible electromagnetic hazard resistance laminate, comprising a layer of electrically conductive metal material and thermosetting resin, wherein a first external face of the laminate comprises a releasable backing sheet in contact with resin, and a second external face of the laminate comprises resin, wherein the second external face has greater adhesiveness than the first external face with the backing sheet removed.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: June 9, 2015
    Assignee: Hexcel Composites Limited
    Inventors: Emilie Fisset, John Ellis, Paul Mackenzie
  • Patent number: 9051059
    Abstract: A curable flexible electromagnetic hazard resistance laminate, comprising a layer of electrically conductive metal material and thermosetting resin, wherein an external face of the laminate comprises a releasable backing sheet in contact with resin, and the laminate further comprises a substantially non-reshapable sheet of solid material.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: June 9, 2015
    Assignee: Hexcel Composites Limited
    Inventors: Emilie Fisset, John Ellis, Paul Mackenzie
  • Patent number: 9034975
    Abstract: Composite material that contain epoxy resin which is toughened and strengthened with thermoplastic materials and a blend of insoluble particles. The uncured matrix resins include an epoxy resin component, a soluble thermoplastic component, a curing agent and an insoluble particulate component composed of elastic particles and rigid particles. The uncured resin matrix is combined with a fibrous reinforcement and cured/molded to form composite materials that may be used for structural applications, such as primary structures in aircraft.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 19, 2015
    Assignees: Hexcel Corporation, Hexcel Composites Limited
    Inventors: Maureen Boyle, Dana Blair, Yi-Jui Wu, Yen-Seine Wang, Bryce Floryancic, Paul Mackenzie
  • Publication number: 20130260022
    Abstract: Composite material that contain epoxy resin which is toughened and strengthened with thermoplastic materials and a blend of insoluble particles. The uncured matrix resins include an epoxy resin component, a soluble thermoplastic component, a curing agent and an insoluble particulate component composed of elastic particles and rigid particles. The uncured resin matrix is combined with a fibrous reinforcement and cured/molded to form composite materials that may be used for structural applications, such as primary structures in aircraft.
    Type: Application
    Filed: May 29, 2013
    Publication date: October 3, 2013
    Applicants: Hexcel Composites Limited, Hexcel Corporation
    Inventors: Maureen Boyle, Dana Blair, Yi-Jui Wu, Yen-Seine Wang, Bryce Floryancic, Paul Mackenzie
  • Patent number: 8470923
    Abstract: Composite material that contain epoxy resin which is toughened and strengthened with thermoplastic materials and a blend insoluble particles. The uncured matrix resins include an epoxy resin component, a soluble thermoplastic component, a curing agent and an insoluble particulate component composed of elastic particles and rigid particles. The uncured resin matrix is combined with a fibrous reinforcement and cured/molded to form composite materials that may be used for structural applications, such as primary structures in aircraft.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: June 25, 2013
    Assignees: Hexcel Corporation, Hexcel Composites Limited
    Inventors: Maureen Boyle, Dana Blair, Yi-Jui Wu, Yen-Seine Wang, Bryce Floryancic, Paul Mackenzie
  • Publication number: 20120219775
    Abstract: A curable flexible electromagnetic hazard resistance laminate, comprising a layer of electrically conductive metal material and thermosetting resin, wherein an external face of the laminate comprises a releasable backing sheet in contact with resin, and the laminate further comprises a substantially non-reshapable sheet of solid material.
    Type: Application
    Filed: September 19, 2010
    Publication date: August 30, 2012
    Applicant: Hexcel Composites Limited
    Inventors: Emilie Fisset, John Ellis, Paul Mackenzie
  • Publication number: 20120219745
    Abstract: A curable flexible electromagnetic hazard resistance laminate, comprising a layer of electrically conductive metal material and thermosetting resin, wherein a first external face of the laminate comprises a releasable backing sheet in contact with resin, and a second external face of the laminate comprises resin, wherein the second external face has greater adhesiveness than the first external face with the backing sheet removed.
    Type: Application
    Filed: October 19, 2010
    Publication date: August 30, 2012
    Applicant: Hexcel Composites Limited
    Inventors: Emilie Fisset, John Ellis, Paul MacKenzie
  • Publication number: 20120100362
    Abstract: A process for the manufacture of a prepreg comprising feeding a layer of unidirectional conductive fibres having a defined width, bringing into contact with a first face of the fibres a first layer of resin comprising thermosetting resin, and compressing the resin and fibres together by passing over one or more impregnation rollers, wherein the pressure exerted onto the conductive fibres and resin does not exceed 40 kg per centimetre of the width of the conductive fibres, and the resin being in sufficient amount for the resin to enter the interstices of the fibres and leave a first outer layer of resin essentially free of unidirectional conductive fibres.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 26, 2012
    Applicants: Hexcel Composites, S.A.S, Hexcel Composites Ltd.
    Inventors: John Ellis, Emille Fisset, David Tilbrook, Paul MacKenzie, Isabelle Blanc, Lucien Fiore, Bernadette Tizon
  • Publication number: 20120100335
    Abstract: A prepreg comprising a structural layer of packed unidirectional conductive fibres comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and being essentially free of unidirectional conductive fibres, which when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed unidirectional conductive fibres and a first outer layer of cured resin comprising unidirectional conductive fibres dispersed within.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 26, 2012
    Applicant: HEXCEL COMPOSITES LIMITED
    Inventors: John Ellis, Emille Fisset, David Tilbrook, Paul Mackenzie
  • Patent number: 8097333
    Abstract: Pre-impregnated composite material (prepreg) is provided that can be cured to form composite parts that have high levels of damage tolerance. The matrix resin includes a thermoplastic particle component that is a blend of particles that have a melting point above the curing temperature and particles that have a melting point at or below the curing temperature.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: January 17, 2012
    Assignees: Hexcel Corporation, Hexcel Composites, Ltd.
    Inventors: David Tilbrook, Dana Blair, Maureen Boyle, Paul Mackenzie
  • Publication number: 20110259514
    Abstract: Composite material that contain epoxy resin which is toughened and strengthened with thermoplastic materials and a blend insoluble particles. The uncured matrix resins include an epoxy resin component, a soluble thermoplastic component, a curing agent and an insoluble particulate component composed of elastic particles and rigid particles. The uncured resin matrix is combined with a fibrous reinforcement and cured/molded to form composite materials that may be used for structural applications, such as primary structures in aircraft.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 27, 2011
    Applicants: Hexcel Composites Ltd., Hexcel Corporation
    Inventors: Maureen Boyle, Dana Blair, Yi-Jui Wu, Yen-Seine Wang, Bryce Floryancic, Paul Mackenzie
  • Publication number: 20110262630
    Abstract: A composite material comprising at least one polymeric resin and optionally at least one fibrous reinforcement where the polymeric resin comprises at least one difunctional epoxy resin and at least one epoxy resin with a functionality greater than two having at least one meta-substituted phenyl ring in its backbone.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Applicants: Hexcel Corporation, Hexcel Composites Limited
    Inventors: David Tilbrook, Dana Blair, Paul Mackenzie, Maureen Boyle