Patents by Inventor Alexander Stuart Caunce

Alexander Stuart Caunce 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: 10940625
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 9, 2021
    Assignee: EHC CANADA, INC.
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce, Reginald Anthony Butwell
  • Patent number: 10464249
    Abstract: An article may include a carcass or jacket, and at least one composite member arranged within the carcass or jacket for inhibiting longitudinal stretch of the article. The composite member may include a plurality of fibers arranged in a polymeric binder, the polymeric binder bonding the composite member to the carcass or jacket. The carcass or jacket may be formed substantially of rubber or thermoplastic elastomer. The plurality of fibers may include fibers formed substantially from at least one of S-glass, aramid and carbon fiber. The polymer binder may be formed substantially of a thermoplastic material or of a thermoset material. In manufacturing of the article, the carcass or jacket may be extruded to surround the composite member. The article may be a handrail or an elevator belt.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: November 5, 2019
    Assignee: EHC CANADA, INC.
    Inventors: Andrew Oliver Kenny, Naseer Mohammad Qureshi, Alexander Stuart Caunce, Douglas James Weatherall, Qingping Guo, Michael Degli Angeli
  • Patent number: 10350807
    Abstract: A method of and apparatus for extruding an article of uniform cross-section, the article including a thermoplastic material and at least one cable for inhibiting stretch of the article. The cable is supplied to a respective tube and is conveyed between upstream and downstream ends. The thermoplastic material may be supplied to the downstream end of the tube. The thermoplastic material is brought together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate. The tube is configured to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end, which may prevent or at least reduce incidence of “birdcaging”.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 16, 2019
    Assignee: EHC CANADA, INC.
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce, Reginald Anthony Butwell
  • Publication number: 20180243963
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce, Reginald Anthony Butwell
  • Patent number: 9981415
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 29, 2018
    Assignee: EHC CANADA, INC.
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce, Reginald Anthony Butwell
  • Publication number: 20180111304
    Abstract: A method of and apparatus for extruding an article of uniform cross-section, the article including a thermoplastic material and at least one cable for inhibiting stretch of the article. The cable is supplied to a respective tube and is conveyed between upstream and downstream ends. The thermoplastic material may be supplied to the downstream end of the tube. The thermoplastic material is brought together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate. The tube is configured to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end, which may prevent or at least reduce incidence of “birdcaging”.
    Type: Application
    Filed: June 17, 2016
    Publication date: April 26, 2018
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce, Reginald Anthony Butwell
  • Publication number: 20180022005
    Abstract: An article may include a carcass or jacket, and at least one composite member arranged within the carcass or jacket for inhibiting longitudinal stretch of the article. The composite member may include a plurality of fibers arranged in a polymeric binder, the polymeric binder bonding the composite member to the carcass or jacket. The carcass or jacket may be formed substantially of rubber or thermoplastic elastomer. The plurality of fibers may include fibers formed substantially from at least one of S-glass, aramid and carbon fiber. The polymer binder may be formed substantially of a thermoplastic material or of a thermoset material. In manufacturing of the article, the carcass or jacket may be extruded to surround the composite member. The article may be a handrail or an elevator belt.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Inventors: Andrew Oliver Kenny, Naseer Mohammad Qureshi, Alexander Stuart Caunce, Douglas James Weatherall, Qingping Guo, Michael Degli Angeli
  • Patent number: 9579839
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: February 28, 2017
    Assignee: EHC CANADA, INC.
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce
  • Publication number: 20150283750
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Application
    Filed: June 19, 2015
    Publication date: October 8, 2015
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce, Reginald Anthony Butwell
  • Patent number: 8820511
    Abstract: Modified handrails for use in escalators, moving walkways and other transportation apparatus are provided. Handrail can include a configuration for a cable array as a stretch inhibitor that reduces cable buckling under severe flexing conditions. Handrail can also include a configuration for first and second thermoplastic layers in the lip portions that reduces strain and bending stresses and increases fatigue failure life under cyclic loading conditions. Handrail can also include, for the stretch inhibitor, the use of cables comprising large outer strands and small inner strands that enable penetration and adhesion within the first layer and can reduce incidence of fretting or corrosion.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: September 2, 2014
    Assignee: EHC Canada, Inc.
    Inventors: Viqar Haider, Andrew Oliver Kenny, Alexander Stuart Caunce
  • Publication number: 20120321734
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 20, 2012
    Applicant: EHC CANADA, INC.
    Inventors: Andrew Oliver Kenny, Douglas James Weatherall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce
  • Publication number: 20100283173
    Abstract: A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
    Type: Application
    Filed: September 10, 2008
    Publication date: November 11, 2010
    Inventors: Andrew Oliver Kenny, Douglas James Weathrall, Viqar Haider, Ronald Harold Ball, Alexander Stuart Caunce
  • Publication number: 20100258403
    Abstract: Modified handrails for use in escalators, moving walkways and other transportation apparatus are provided. Handrail can include a configuration for a cable array as a stretch inhibitor that reduces cable buckling under severe flexing conditions. Handrail can also include a configuration for first and second thermoplastic layers in the lip portions that reduces strain and bending stresses and increases fatigue failure life under cyclic loading conditions. Handrail can also include, for the stretch inhibitor, the use of cables comprising large outer strands and small inner strands that enable penetration and adhesion within the first layer and can reduce incidence of fretting or corrosion.
    Type: Application
    Filed: September 10, 2008
    Publication date: October 14, 2010
    Inventors: Viqar Haider, Andrew Oliver Kenny, Alexander Stuart Caunce