Patents by Inventor Keith Warren

Keith Warren 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: 11970144
    Abstract: One embodiment of an outrigger footpad retainer system is described and depicted. The system may include a spider assembly that has an upper unit and a lower unit. The upper unit may have a retainer portion and two legs extending from the portion. The lower unit may have a retainer portion and two legs extending from the portion. The upper portion may at least partially overlap the lower portion.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: April 30, 2024
    Assignee: Bil-Jax, Inc.
    Inventors: Robert Warren Reyes, Keith Raymond Bruner, Michael John Docis
  • Publication number: 20220357083
    Abstract: The invention provides a heat pump system and method heat pump system comprising a first Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elastocaloric material core positioned in a housing and adapted to change state in response a temperature change supplied by a fluid. A second Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elastocaloric material core positioned in a housing and adapted to change state in response a temperature change supplied by the fluid. A pump mechanism connected in a fluid communication with the first core and second core and adapted to control delivery of the fluid to the first and second core.
    Type: Application
    Filed: August 2, 2020
    Publication date: November 10, 2022
    Applicant: EXERGYN LTD.
    Inventors: Kevin O'TOOLE, Keith WARREN
  • Publication number: 20220299243
    Abstract: The invention provides a heat pump system and method heat pump system comprising a first Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) core and adapted to convert movement of the core into energy in response to a temper-reature change. A second Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) core in fluid communication with the first core and adapted to convert movement of the second core into energy. A third Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) or elastocaloric core in fluid communication with the first and second cores and adapted to convert movement of the third core into energy. The first core, second core and the third core are arranged in series and a control system provides waste pressure from the first core to the second core and/or third core.
    Type: Application
    Filed: August 2, 2020
    Publication date: September 22, 2022
    Applicant: EXERGYN LTD.
    Inventors: Kevin O'TOOLE, Keith WARREN, Richard BLACKBURN, Greg PITTAM, Neil DWYER, Michael LANGAN
  • Publication number: 20220275980
    Abstract: The invention provides a heat pump system and method comprising a first Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elastocaloric core positioned in a housing and adapted to absorb heat and store energy in response to a first fluid inputted at a first temperature. The housing is configured to receive the first fluid at a first temperature via an inlet to cause the first SMA or NTE elastocaloric core to change state. A device is configured to apply stress on the first SMA or NTE core in the housing to cause the SMA or NTE elastocaloric core to change state, releasing heat/energy and causing the SMA/NTE to heat up. A second fluid at a higher temperature is inputted and then subsequently heated further as a result of heat transfer. A second Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) or elastocaloric core is positioned in a cascade arrangement with the first core, but exhibiting a higher activation temperature.
    Type: Application
    Filed: August 1, 2020
    Publication date: September 1, 2022
    Applicant: EXERGYN LTD.
    Inventors: Kevin O'TOOLE, Keith WARREN
  • Publication number: 20200190645
    Abstract: The present invention relates to a system and method for or forming an elongated length of SMA or NTE material wire for use in an engine core, said system comprising a heat source adapted to cooperate with a base support; a wire holder support having a cavity to define a mould; said heat source is configured to receive the wire holder support to engage the base support; and the wire holder support holds part of the SMA or NTE material wire in the cavity such that on heating the part of the SMA or NTE material wire causes the SMA or NTE material wire shape to change to match the shape of the cavity mould.
    Type: Application
    Filed: June 14, 2018
    Publication date: June 18, 2020
    Inventors: Keith WARREN, Liam MCBRIERTY
  • Patent number: 10563640
    Abstract: An energy recovery device comprising a drive mechanism; an engine comprising a plurality of Shape Memory Alloy (SMA) Negative Thermal Expansion (NTE) elements fixed at a first end by a holder element and connected at a second end to a drive mechanism wherein a compensation mechanism is positioned and adapted to combat the shrinkage of the SMA or NTE elements encountered in heating cycles.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 18, 2020
    Inventors: Barry Cullen, Georgiana Tirca-Dragomirescu, Kevin O'Toole, Keith Warren, Ronan Byrne, Robert Kelly
  • Patent number: 10288049
    Abstract: The invention provides an energy recovery system comprising a first Shape Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) core and adapted to convert movement of the core into energy in response to a first temperature. Various embodiments are disclosed to include cascaded core arrangements, preheating/cooling of cores and how to decrease the time of reaction for the shape memory alloy in an efficient manner.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 14, 2019
    Assignee: EXERGYN LIMITED
    Inventors: Georgiana Tirca-Dragomirescu, Keith Warren
  • Publication number: 20180347551
    Abstract: The invention provides an energy recovery system comprising a first Shape Memory Alloy (SMAs) or Negative the bundle Thermal Expansion (NTE) core and adapted to convert movement of the core into energy in response to a first temperature. Various embodiments are disclosed to include cascaded core arrangements, preheating/cooling of cores and how to decrease the time of reaction for the shape memory alloy in an efficient manner.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 6, 2018
    Inventors: Georgiana TIRCA-DRAGOMIRESCU, Keith WARREN
  • Publication number: 20180216604
    Abstract: The present application relates to the field of energy recovery and in particular to the use of shape memory alloys (SMA) for same. An energy recovery device is provided which comprises a one way drive mechanism for incrementally winding a spring. An SMA engine comprising a length of SMA material is fixed at a first end and connected at a second end to the one way drive mechanism. The SMA engine is housed in an immersion chamber and adapted to be sequentially filled with fluid to allow heating and/or cooling of the SMA engine to enable high frequency contractions and expansion. An output transmission is provided which is coupled to and driven by the spring. In this manner, repeated contractions of the SMA material incrementally wind the spring to store energy. The spring is restrained by a release mechanism which may be activated to allow the spring to drive an output transmission.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 2, 2018
    Inventors: Keith Warren, Barry Cullen, Kevin O'Toole, Nicholas Breen, Daniel Healy Grace, Robert Kelly
  • Patent number: 10036118
    Abstract: A plurality of wire elements for use in an energy recovery device comprising Shape Memory Alloy or other Negative Thermal Expansion (NTE) material, wherein at least one wire element is fixed at one end and free to move at a second end, such that the wire elements are arranged adjacently and are in friction or interference contact with each other and are secured at the outer perimeter of wires utilising a securing means. In such arrangement, during the operation of the bundle arrangement in a heat engine system, the plate elements act to transmit the aggregated force generation of the wire grouping and thus usefully recover and transmit power.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: July 31, 2018
    Assignee: EXERGYN LIMITED
    Inventors: Barry Cullen, Kevin O'Toole, Georgiana Tirca-Dragomirescu, Keith Warren, Ronan Byrne, Rory Beirne
  • Patent number: 9995289
    Abstract: The invention provides an energy recovery device comprising an engine comprising a plurality of Shape Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elements fixed at a first end and connected at a second end to a drive mechanism wherein a holder is configured with a plurality of slots adapted to receive the plurality of Shape Memory Alloy (SMA) or NTE elements.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 12, 2018
    Assignee: EXERGYN LIMITED
    Inventors: Barry Cullen, Kevin O'Toole, Geogiana Tirca-Dragomirescu, Keith Warren, Rory Beirne
  • Publication number: 20180149141
    Abstract: An energy recovery device comprising a drive mechanism; an engine comprising a plurality of Shape Memory Alloy (SMA) Negative Thermal Expansion (NTE) elements fixed at a first end by a holder element and connected at a second end to a drive mechanism wherein a compensation mechanism is positioned and adapted to combat the shrinkage of the SMA or NTE elements encountered in heating cycles.
    Type: Application
    Filed: December 16, 2015
    Publication date: May 31, 2018
    Inventors: Barry Cullen, Georgiana Tirca-Dragomirescu, Kevin O'Toole, Keith Warren, Ronan Byrne, Robert Kelly
  • Patent number: 9885344
    Abstract: The present application relates to the field of energy recovery and in particular to the use of shape memory alloys (SMA) for same. An energy recovery device is provided which comprises a one way drive mechanism for incrementally winding a spring. An SMA engine comprising a length of SMA material is fixed at a first end and connected at a second end to the one way drive mechanism. The SMA engine is housed in an immersion chamber and adapted to be sequentially filled with fluid to allow heating and/or cooling of the SMA engine to enable high frequency contractions and expansion. An output transmission is provided which is coupled to and driven by the spring. In this manner, repeated contractions of the SMA material incrementally wind the spring to store energy. The spring is restrained by a release mechanism which may be activated to allow the spring to drive an output transmission.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: February 6, 2018
    Assignee: Exergyn Limited
    Inventors: Keith Warren, Barry Cullen, Kevin O'Toole, Nicholas Breen, Daniel Healy Grace, Robert Kelly
  • Publication number: 20170362772
    Abstract: A plurality of wire elements for use in an energy recovery device comprising Shape Memory Alloy or other Negative Thermal Expansion (NTE) material, wherein at least one wire element is fixed at one end and free to move at a second end, such that the wire elements are arranged adjacently and are in friction or interference contact with each other and are secured at the outer perimeter of wires utilising a securing means. In such arrangement, during the operation of the bundle arrangement in a heat engine system, the plate elements act to transmit the aggregated force generation of the wire grouping and thus usefully recover and transmit power.
    Type: Application
    Filed: December 14, 2015
    Publication date: December 21, 2017
    Inventors: Barry Cullen, Kevin O'Toole, Georgiana Tirca-Dragomirescu, Keith Warren, Ronan Byme, Rory Beirne
  • Publication number: 20170198682
    Abstract: The invention provides an energy recovery device comprising an engine comprising a plurality of Shape Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elements fixed at a first end and connected at a second end to a drive mechanism wherein a holder is configured with a plurality of slots adapted to receive the plurality of Shape Memory Alloy (SMA) or NTE elements.
    Type: Application
    Filed: May 29, 2015
    Publication date: July 13, 2017
    Inventors: Barry Cullen, Kevin O'Toole, Geogiana Tirca-Dragomirescu, Keith Warren, Rory Beirne
  • Patent number: 9382706
    Abstract: A method of retrofitting a home includes providing a structural base on a ground surface adjacent to and outside the outer walls, the structural base comprising one or more air passages; installing insulation adjacent to an outer surface of the outer walls, the insulation being supported by the structural base; and installing siding material on an outer surface of the insulation, the siding material and the existing outer walls enclosing the insulation and defining a flow path, a top of the flow path comprising one or more air passages into the attic space such that air flows along the insulation in the flow path between the structural base and the attic space. A plurality of new trusses may be supported at an apex of the existing roof that overhanging the existing outer walls and the insulation, the trusses sloping direction of the slope of the existing roof.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 5, 2016
    Inventor: Keith Warren
  • Publication number: 20150284944
    Abstract: A method of retrofitting a home includes providing a structural base on a ground surface adjacent to and outside the outer walls, the structural base comprising one or more air passages; installing insulation adjacent to an outer surface of the outer walls, the insulation being supported by the structural base; and installing siding material on an outer surface of the insulation, the siding material and the existing outer walls enclosing the insulation and defining a flow path, a top of the flow path comprising one or more air passages into the attic space such that air flows along the insulation in the flow path between the structural base and the attic space. A plurality of new trusses may be supported at an apex of the existing roof that overhanging the existing outer walls and the insulation, the trusses sloping direction of the slope of the existing roof.
    Type: Application
    Filed: June 17, 2015
    Publication date: October 8, 2015
    Inventor: Keith WARREN
  • Patent number: 9074366
    Abstract: A method of retrofitting a home includes providing a structural base on a ground surface adjacent to and outside the outer walls, the structural base comprising one or more air passages; installing insulation adjacent to an outer surface of the outer walls, the insulation being supported by the structural base; and installing siding material on an outer surface of the insulation, the siding material and the existing outer walls enclosing the insulation and defining a flow path, a top of the flow path comprising one or more air passages into the attic space such that air flows along the insulation in the flow path between the structural base and the attic space. A plurality of new trusses may be supported at an apex of the existing roof that overhanging the existing outer walls and the insulation, the trusses sloping direction of the slope of the existing roof.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 7, 2015
    Inventor: Keith Warren
  • Publication number: 20150007558
    Abstract: The present application relates to the field of energy recovery and in particular to the use of shape memory alloys (SMA) for same. An energy recovery device is provided which comprises a one way drive mechanism for incrementally winding a spring. An SMA engine comprising a length of SMA material is fixed at a first end and connected at a second end to the one way drive mechanism. The SMA engine is housed in an immersion chamber and adapted to be sequentially filled with fluid to allow heating and/or cooling of the SMA engine to enable high frequency contractions and expansion. An output transmission is provided which is coupled to and driven by the spring. In this manner, repeated contractions of the SMA material incrementally wind the spring to store energy. The spring is restrained by a release mechanism which may be activated to allow the spring to drive an output transmission.
    Type: Application
    Filed: December 5, 2012
    Publication date: January 8, 2015
    Inventors: Keith Warren, Barry Cullen, Kevin O'Toole, Nicholas Breen, Daniel Healy Grace, Robert Kelly
  • Publication number: 20140190120
    Abstract: A method of retrofitting a home includes providing a structural base on a ground surface adjacent to and outside the outer walls, the structural base comprising one or more air passages; installing insulation adjacent to an outer surface of the outer walls, the insulation being supported by the structural base; and installing siding material on an outer surface of the insulation, the siding material and the existing outer walls enclosing the insulation and defining a flow path, a top of the flow path comprising one or more air passages into the attic space such that air flows along the insulation in the flow path between the structural base and the attic space. A plurality of new trusses may be supported at an apex of the existing roof that overhanging the existing outer walls and the insulation, the trusses sloping direction of the slope of the existing roof.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 10, 2014
    Inventor: Keith Warren