Patents by Inventor Donald T. Morelli

Donald T. Morelli 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: 10658560
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: May 19, 2020
    Assignees: Board of Trustees of Michigan State University, The Regents of the University of California
    Inventors: Donald T. Morelli, Xu Lu, Vidvuds Ozolins
  • Patent number: 10622534
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed. The thermoelectric device has a pair of conductors and a p-type thermoelectric material disposed between the conductors. The thermoelectric material is at least partially formed of a hot pressed high energy milled tetrahedrite formed of tetrahedrite ore and pure elements to form a tetrahedrite powder of Cu12-xMxSb4S13 disposed between the conductors, where M is at least one of Zn and Fe.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: April 14, 2020
    Assignee: Board of Trustees of Michigan State University
    Inventors: Donald T. Morelli, Xu Lu
  • Publication number: 20180233646
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed.
    Type: Application
    Filed: December 18, 2015
    Publication date: August 16, 2018
    Applicants: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Donald T. MORELLI, Xu LU, Vidvuds OZOLINS
  • Publication number: 20170331023
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 16, 2017
    Inventors: Donald T. MORELLI, Xu LU, Vidvuds OZOLINS
  • Patent number: 9673369
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: June 6, 2017
    Assignees: Board of Trustees of Michigan State University, The Regents of the University of California
    Inventors: Donald T. Morelli, Xu Lu, Vidvuds Ozolins
  • Publication number: 20160141481
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed. The thermoelectric device has a pair of conductors and a p-type thermoelectric material disposed between the conductors. The thermoelectric material is at least partially formed of a hot pressed high energy milled tetrahedrite formed of tetrahedrite ore and pure elements to form a tetrahedrite powder of Cu12-xMxSb4S13 disposed between the conductors, where M is at least one of Zn and Fe.
    Type: Application
    Filed: July 3, 2014
    Publication date: May 19, 2016
    Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Donald T. MORELLI, Xu LU
  • Publication number: 20150200345
    Abstract: Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed.
    Type: Application
    Filed: July 3, 2013
    Publication date: July 16, 2015
    Inventors: Donald T. Morelli, Xu Lu, Vidvuds Ozolins
  • Patent number: 7610767
    Abstract: A thermo-electric device has a seat side and a cabin side for delivering heating and cooling air from a HVAC module to seat passages of a vehicle seat assembly. A selector is included for setting a desired or control temperature Tcontrol of the seat assembly. A comparator is included for determining the temperature difference ?T between the actual temperature of the seat assembly Tseat and the desired or selected temperature Tcontrol. A controller simultaneously adjusts a proportioning valve and adjusts the electrical current to the thermoelectric device in relationship to one another in response to the temperature difference ?T.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: November 3, 2009
    Assignee: Delphi Technologies, Inc.
    Inventors: Prasad Shripad Kadle, Edward Wolfe, IV, Joseph Pierre Heremans, Donald T. Morelli
  • Publication number: 20090235969
    Abstract: A thermoelectric material and a method of fabricating a thermoelectric material are provided. The thermoelectric material includes a compound having an elemental formula of A1?xB1+yC2+z and having a coefficient of thermal expansion greater than 20 parts-per-million per degree Celsius in at least one direction at one or more operating temperatures. The A component of the compound includes at least one element selected from the group consisting of: at least one Group Ia element and at least one Group Ib element, the B component of the compound includes at least one element selected from the group consisting of: at least one Group V element and at least one Group VIII element, and the C component of the compound includes at least one Group VI element. In addition, x is between ?0.2 and 0.3, y is between ?0.2 and 0.4, and z is between ?0.2 and 0.8.
    Type: Application
    Filed: January 23, 2009
    Publication date: September 24, 2009
    Applicants: The Ohio State University Research Foundation, The Board of Trustee of Michigan State University
    Inventors: Joseph P. Heremans, Vladimir Jovovic, Donald T. Morelli
  • Patent number: 7533535
    Abstract: A thermo-electric device is disposed in series with the HVAC module for heating and cooling air Ta from the HVAC module for delivery to seat passages of a seat assembly and/or to a thermal container. The thermoelectric device includes a thermoelectric module, a heat exchanger having cold and hot sides, ductwork, a divider that sends variable air flow to the cold or hot sides of the thermoelectric module, and thermal insulation between the cold and hot sides downstream of the heat exchanger. The fan of the HVAC module is the sole motivation for moving the conditioned air Ta originating from the central HVAC module through the thermoelectric device and to the seat assembly and/or to a thermal container.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: May 19, 2009
    Assignee: Delphi Technologies, Inc
    Inventors: Prasad Shripad Kadle, Edward Wolfe, IV, Joseph Pierre Heremans, Donald T. Morelli
  • Patent number: 7365265
    Abstract: A thermoelectric material having enhanced Seebeck coefficient is characterized by a microstructure comprising nanoscale Pb inclusions dispersed in matrix substantially composed of PbTe. The excess Pb is obtained either by adding Pb in an amount greater than the stoichiometric amount needed to form PbTe, or by adding an additive effective to getter Te so as to produce the desired excess. The method is generally applicable to enhance thermoelectric properties of compounds of Pb, Sn or Ge, and Te, Se, or S.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: April 29, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Joseph Pierre Heremans, Christopher M. Thrush, Donald T. Morelli
  • Patent number: 7362096
    Abstract: An apparatus (10) is set forth for measuring a return signal of a magnetostrictive sensor (20) that detects a force, torque, or pressure. The return signal includes noise, a DC resistance (44), an AC resistance and an inductance and the inductance is shifted ninety degrees from the AC resistance. The apparatus (10) includes a sensor filter (22) to remove the noise from the return signal. A sensor filter (22) shifts the return signal and more specifically, the inductance by an additional angle and the sum of the additional angle and the ninety degrees phase shift is defined as the final detection angle. To detect the inductance at the final detection angle, a wave filter (16) and a reference filter (28) shifts a reference signal by the final detection angle to trigger a first demodulator (26) to detect the inductance at the final detection angle. The inductance detected by the first demodulator (26) varies due to temperature.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: April 22, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Larry M. Oberdier, Thaddeus Schroeder, Robert J. Disser, Tina M. Dewar, Thomas A. Baudendistel, Bruno Lequesne, Donald T. Morelli
  • Patent number: 7238101
    Abstract: A thermoelectric device is disposed in series with the HVAC module for heating and cooling air Ta from the HVAC module for delivery to seat passages of a seat assembly. The thermoelectric device includes a thermoelectric module, a heat exchanger having cold and hot sides, ductwork, a divider that sends variable air flow to the cold or hot sides of the thermoelectric module, and thermal insulation between the cold and hot sides downstream of the heat exchanger. The fan of the HVAC module is the sole motivation for moving the conditioned air Ta originating from the central HVAC module through the thermoelectric device and to the seat assembly.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: July 3, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Prasad Shripad Kadle, Edward Wolfe, IV, Joseph Pierre Heremans, Donald T. Morelli
  • Patent number: 7234361
    Abstract: A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS. 3–7.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: June 26, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Bruno P. B. Lequesne, Thaddeus Schroeder, Donald T. Morelli, Thomas A. Baudendistel
  • Patent number: 7146866
    Abstract: A magnetostrictive strain sensor (10) includes a magnetostrictive core (12) comprising a magnetostrictive material, such as a nickel-iron alloy, able to conduct a magnetic flux and whose permeability is alterable by application of a strain. A conductive coil (14) is proximate the magnetostrictive core (12) to generate the magnetic flux when electrically excited. A shell (16) surrounds the conductive coil (14) and the magnetostrictive core (12) for providing a conductive return path for the magnetic flux. An excitation source (18) is electrically connected to the conductive coil (14) for electrically exciting the conductive coil (14) with an alternating current having a constant magnitude. An in-phase voltage circuit (22) is electrically connected across the conductive coil (14). The in-phase voltage circuit (22) senses an in-phase voltage that is in-phase with the alternating current. The in-phase voltage varies correspondingly to the strain subjected to the magnetostrictive core (12).
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: December 12, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Donald T. Morelli, Bruno Lequesne, Larry M. Oberdier, Thomas A. Baudendistel
  • Patent number: 7104137
    Abstract: A magnetostrictive fluid-pressure sensor includes annular inner and outer cylinders, a first connector, annular second and third connectors, and first and second coils. The inner cylinder surrounds a fluid-receiving bore. At least one of the cylinders is a magnetostrictive cylinder. The first connector connects the first ends of the cylinders and has a first portion extending radially inward of the inner cylinder. The second connector connects the second ends of the cylinders and defines a fluid inlet. The third connector connects the cylinders and is positioned longitudinally between the first and second connectors. The first coil is positioned radially between the inner and outer cylinders and longitudinally between the first and third connectors. The second coil is positioned radially between the inner and outer cylinders and longitudinally between the second and third connectors.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: September 12, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Thomas A. Baudendistel, Harald Klode, Donald T. Morelli, Bruno P. B. Lequesne
  • Patent number: 7081376
    Abstract: Disclosed is a method for forming a heat sink laminate and a heat sink laminate formed by the method. In the method a particle mixture is formed from a metal, an alloy or mixtures thereof with a ceramic or mixture of ceramics. The mixture is kinetically sprayed onto a first side of a dielectric material to form a metal matrix composite layer. The second side of the dielectric material is thermally coupled to a heat sink baseplate, thereby forming the heat sink laminate.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: July 25, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Donald T. Morelli, Alaa A. Elmoursi, Thomas H. Van Steenkiste, Brian K. Fuller, Bryan A. Gillispie, Daniel W. Gorkiewicz
  • Patent number: 7024946
    Abstract: The subject invention provides an assembly for measuring movement of and a torque applied to a shaft extending between first and second ends and being hollow, specifically for measuring rotation and twisting of the shaft. A permanent magnet is disposed within the shaft for producing a parallel magnetic field emanating radially from the shaft. A sensor mechanism is positioned adjacent the shaft to detect the magnetic flux produced in response to the shaft being moved. The sensor mechanism includes a magnetostrictive (MR) material disposed annularly about the shaft and extends between first and second edges. A flux collector extends beyond the first and second edges of the magnetostrictive material to direct the magnetic flux through a Hall sensor to detect an axial component of the magnetic flux in response to twisting.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: April 11, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Thomas Wolfgang Nehl, Thomas Hubert Van Steenkiste, John R. Smith, Brian K Fuller, Avoki M. Omekanda, Donald T. Morelli, Joseph V. Mantese
  • Patent number: 6993983
    Abstract: A magnetostrictive force sensor universally usable in any environment with similar signals unaffected by the surrounding material. To this end, a sensor comprising a shaft of magnetostrictive material with an inductance coil wound around the shaft is provided with a magnetic shell enclosing the coil only or both the coil and the shaft. Upon application of the magnetic field, the resultant flow of magnetic flux is confined to a path through the shaft and the magnetic shell. By confining the magnetic flux path, the dependency of the sensor signal on the surrounding material and environment is essentially eliminated.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: February 7, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Bruno Patrice Bernard Lequesne, Donald T. Morelli, Thaddeus Schroeder, Thomas Wolfgang Nehl, Thomas Allen Baudendistel
  • Patent number: 6941824
    Abstract: A magnetic force sensor and method for measuring a force applied to an object. A magnetostrictive element mounted on at least a portion of the object is subjected to a prestress. A conductive coil is wound around at least a portion of the magnetostrictive element. An excitation source, which includes one of a current source and a voltage source, excites the conductive coil. A detection circuit detects one of an induced voltage across the conductive coil and a voltage drop across a resistor in series with the conductive coil. The detected voltage can be used to determine the applied force. A second coil can be used in a bipolar sensor or to correct for variations in ambient conditions.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: September 13, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Donald T. Morelli, Thaddeus Schroeder