Patents by Inventor Nathan A. Wilmot

Nathan A. Wilmot 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: 20110201707
    Abstract: The instant invention provides an isocyanate trimerisation catalyst system, a precursor formulation, a process for trimerising isocyanates, rigid foams made therefrom, and a process for making such foams. The trimerisation catalyst system comprises: (a) a phosphatrane cation; and (b) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73 C.
    Type: Application
    Filed: November 9, 2009
    Publication date: August 18, 2011
    Inventors: Phillip S. Athey, Nathan Wilmot, Richard Keaton, David A. Babb, Cecile Boyer, Timothy Morley
  • Publication number: 20110201706
    Abstract: The instant invention provides an isocyanate trimerisation catalyst system, a precursor formulation, a process for trimerising isocyanates, rigid foams made therefrom, and a process for making such foams. The trimerisation catalyst system comprises: (a) a substituted iminium cation; and (b) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73° C. The precursor formulation comprises (1) at least 25 percent by weight of polyol, based on the weight of the precursor formulation; (2) less than 15 percent by weight of a trimerisation catalyst system, based on the weight of the precursor formulation, comprising; (a) a substituted iminium cation; and (c) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73° C.
    Type: Application
    Filed: November 9, 2009
    Publication date: August 18, 2011
    Applicant: Dow Global Technologies LLC
    Inventors: Phillip S. Athey, Nathan Wilmot, Richard Keaton, Cecile Boyer, Timothy A. Morley
  • Patent number: 7823682
    Abstract: A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: November 2, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Alan L. Browne, Nancy L. Johnson, Diann Brei, Nathan A. Wilmot, John Redmond
  • Publication number: 20100152969
    Abstract: An active suspension system and method for controlling the height of a vehicle. In an exemplary embodiment, the active suspension system receives information from one or more input sources, including both internal and external vehicle inputs, and uses that information to actively control the vehicle height. By doing so, the active suspension system can reduce aerodynamic drag on the vehicle and improve the vehicle's fuel economy, ride comfort, handling, and other aspects of operation. Some examples of external vehicle inputs that may be used include: short-range road and vehicle information, as well as long-range traffic, road and route information.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Yunjun Li, Timothy J. Herrick, Nancy McMahon, Steven A. Opiteck, John X. Cui, Loren J. Majersik, Nathan A. Wilmot
  • Patent number: 7455147
    Abstract: A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: November 25, 2008
    Assignees: General Motors Corporation, The University of Michigan
    Inventors: Diann Brei, John Redmond, Nathan A. Wilmot, Alan L. Browne, Nancy L. Johnson, Gary L. Jones
  • Patent number: 7331616
    Abstract: A latch for engaging and disengaging two opposing surfaces includes a pin disposed on one surface and a gate disposed on an opposite surface; an active material in operative communication with the pin or the gate; an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an engagement or a disengagement of the pin or the gate from the other of the pin or the gate; and a spring in operative communication with the pin or the gate, wherein the spring is configured to provide a force opposite to a force provided by the active material, wherein the activated active material is effective to overcome the force provided by the spring
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 19, 2008
    Assignees: General Motors Corporation, University of Michigan
    Inventors: Diann Brei, John Redmond, Nathan A. Wilmot, Alan L. Browne, Nancy L. Johnson, Gary L. Jones
  • Patent number: 7233854
    Abstract: A method for controlling the speed in a vehicle includes adjusting at least one gain parameter based on a vehicle speed error and the displacement on demand mode of the engine. A new cruise throttle area is calculated from the adjusted gain parameter.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: June 19, 2007
    Assignee: General Motors Corporation
    Inventors: Allen B. Rayl, Dennis M. Weglarz, James C. Champlin, Nathan A. Wilmot, James G. Gehringer, William R. Venner, III
  • Publication number: 20070063544
    Abstract: A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 22, 2007
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Alan Browne, Nancy Johnson, Diann Brei, Nathan Wilmot, John Redmond
  • Publication number: 20060202512
    Abstract: A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
    Type: Application
    Filed: May 9, 2006
    Publication date: September 14, 2006
    Inventors: Diann Brei, John Redmond, Nathan Wilmot, Alan Browne, Nancy Johnson, Gary Jones
  • Patent number: 7063377
    Abstract: A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: June 20, 2006
    Assignees: General Motors Corporation, University of Michigan
    Inventors: Diann Brei, John Redmond, Nathan A. Wilmot, Alan L. Browne, Nancy L. Johnson, Gary L. Jones
  • Publication number: 20060058939
    Abstract: A method for controlling the speed in a vehicle includes adjusting at least one gain parameter based on a vehicle speed error and the displacement on demand mode of the engine. A new cruise throttle area is calculated from the adjusted gain parameter.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 16, 2006
    Inventors: Allen Rayl, Dennis Weglarz, James Champlin, Nathan Wilmot, James Gehringer, William Venner
  • Publication number: 20060028051
    Abstract: A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
    Type: Application
    Filed: August 6, 2004
    Publication date: February 9, 2006
    Inventors: Diann Brei, John Redmond, Nathan Wilmot, Alan Browne, Nancy Johnson, Gary Jones
  • Publication number: 20060012191
    Abstract: A latch for engaging and disengaging two opposing surfaces includes a pin disposed on one surface and a gate disposed on an opposite surface; an active material in operative communication with the pin or the gate, wherein the active material comprises a shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an engagement or a disengagement of the pin or the gate from the other of the pin or the gate, wherein the disengagement without the activation signal is opposed by a lifting force.
    Type: Application
    Filed: July 15, 2004
    Publication date: January 19, 2006
    Inventors: Diann Brei, John Redmond, Nathan Wilmot, Alan Browne, Nancy Johnson, Gary Jones