Aerospace and Mechanical Engineering

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  • Inventor(s):
    Eric Matlis, Thomas C. Corke, Sivaram Gogineni
    Patent Number:
    US 7275013 B2
    Description:

    Methods and systems are described for a system for obtaining information regarding a flow. These methods and systems comprise a signal generator configured to generate an alternating current signal at a carrier frequency and a transformer arranged to receive the generated signal, wherein the transformer and carrier frequency are selected so that the generated signal resonates at the carrier frequency. The alternating signal is then used to cause plasma to form across a gap between two electro…

    Date Issued:
    2007-09-25
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Mehul Patel, Thomas C. Corke
    Patent Number:
    US 7954768 B2
    Description:

    A method of controlling an aircraft, missile, munition or ground vehicle with plasma actuators, and more particularly of controlling fluid flow across their surfaces or other surfaces which would benefit from such a method, includes the design of an aerodynamic plasma actuator for the purpose of controlling airflow separation over a control surface of a aircraft, missile, or a ground vehicle, and a method of determining a modulation frequency for the plasma actuator for the purpose of fluid f…

    Date Issued:
    2011-06-07
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Linda Fehr, Steven B. Skaar, Guillermo Del Castillo
    Patent Number:
    US 6842692 B2
    Description:

    A wheelchair navigation system having motorized wheelchair which is powered by at least one onboard battery, and a battery charger. The navigation system also has a filter-based estimator with interface software running that is operated on an onboard laptop computer. Dual cameras, proximity sensors, microphones, and rotation sensors for the wheels are mounted to the wheelchair. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotat…

    Date Issued:
    2005-01-11
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Eric Matlis, Scott Morris, Thomas C. Corke, Joshua Cameron
    Patent Number:
    US 7908115 B2
    Description:

    Plasma sensors, systems and related methods are described. An example method for predicting an event includes providing a carrier signal across two electrodes and forming a plasma between the two electrodes. The example method also includes measuring a modulated signal from the plasma, manipulating the modulated signal to produce a value and comparing the value to a threshold. Finally, the example method includes determining the likelihood of the event based on the comparison.

    Date Issued:
    2011-03-15
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Mehul Patel, Thomas C. Corke
    Patent Number:
    US 7624941 B2
    Description:

    The present invention relates to a method of controlling an aircraft, missile, munition or ground vehicle with plasma actuators, and more particularly to controlling fluid flow across their surfaces or other surfaces, which would benefit from such a method. The method includes the design of an aerodynamic plasma actuator for the purpose of controlling airflow separation over a control surface of a aircraft, missile, or a ground vehicle, and more particularly to the method of determining a mod…

    Date Issued:
    2009-12-01
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Hsueh-Chia Chang, David T. Leighton
    Patent Number:
    US 6428754 B2
    Description:

    An exhaust gas treatment system and method for treating the exhaust gas of an internal combustion engine includes a catalytic converter and a catalytic preheater or igniter upstream of the catalytic converter. A bypass passage extends around the igniter such that during the ignition period about two-thirds of the exhaust gas is bypassed around the igniter and one-third passes through the igniter. The igniter raises the temperature of the exhaust gases passing therethrough to an adiabatic temp…

    Date Issued:
    2002-08-06
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Ryan K. Roeder, Matthew J. Meagher, Robert J. Kane
    Patent Number:
    US 9550012 B2
    Description:

    The invention provides a novel composite bone graft system utilizing a porous collagen scaffold having a matrix impregnated with calcium phosphate particles and more than one bioactive agent, one of which is conjugated to the matrix. The graft system exhibits increased mechanical strength and osteogenic properties by providing sites for tissue attachment and propagation. The bioactive agents are delivered to the scaffold via different mechanisms to enable sequential and sustained release of t…

    Date Issued:
    2017-01-24
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Mehul Patel, Thomas C. Corke, Alan B. Cain
    Patent Number:
    US 9541106 B1
    Description:

    The present invention relates to a method of designing or optimizing a control surface for use with plasma actuators for controlling an aircraft, missile, munition or automobile, and more particularly to controlling fluid flow across their surfaces or other surfaces using plasma actuators, which would benefit from such a method. The various embodiments provide the steps to increase the efficiency of aircraft, missiles, munitions and automobiles. The method of flow control also provides a mean…

    Date Issued:
    2017-01-10
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Steven R. Schmid, Glen L. Niebur, Dale R. Sumner
    Patent Number:
    US 7674477 B2
    Description:

    The present invention provides a bone in-growth surface for implants which has a structure for delivering therapeutic agents to surrounding bone and tissue. The bone in-growth surface may comprise scaffolding and a controlled-permeability layer which contains the therapeutic agents in a variety of reservoirs. The porosity of the scaffolding may be controllable from zero porosity to essentially a fully porous material.

    Date Issued:
    2010-03-09
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Eric J. Jumper, Stanislav Gordeyev, Alan B. Cain, Terry Ng
    Patent Number:
    US 7295292 B2
    Description:

    Methods and systems are described for a system for measuring aberrations in a wave front. In the improved system multiple closely-spaced, small-aperture laser beams traverse an aberrating flow that introduces deflections of small-aperture laser beams from which aberrated wavefronts can be constructed. These beams may then be focused on position sensing devices using focusing lenses. The position sensing devices may then detect the positions of these beams and a difference between the detected…

    Date Issued:
    2007-11-13
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Mehul Patel, Thomas C. Corke
    Patent Number:
    US 8267355 B2
    Description:

    A method of controlling an aircraft, missile, munition or ground vehicle with plasma actuators, and more particularly of controlling fluid flow across their surfaces or other surfaces which would benefit from such a method, includes the design of an aerodynamic plasma actuator for the purpose of controlling airflow separation over a control surface of a aircraft, missile, or a ground vehicle, and a method of determining a modulation frequency for the plasma actuator for the purpose of fluid f…

    Date Issued:
    2012-09-18
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Kishore K. Pydimarry, Duane T. Detwiler, John E. Renaud, Neal M. Patel, Byungsoo Kang, Chandan K. Mozumder
    Patent Number:
    US 8880380 B2
    Description:

    Crashworthiness designing of a structure using a Hybrid Cellular Automata (HCA) algorithm where field states are computed using finite element analysis (FEA) and the material distribution of the structure is updated at each iteration using cellular automata method. The HCA algorithm optimizes the topology of the structures to achieve certain performance within the limits of various constraints applied to ensure crashworthiness of the structures. The HCA algorithm may also be applied to design…

    Date Issued:
    2014-11-04
    Record Visibility:
    Public
    Resource Type
    Patent