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  • Inventor(s):
    Linda Fehr, Steven B. Skaar, Guillermo Del Castillo
    Patent Number:
    US 7383107 B2
    Description:

    A wheelchair navigation system for a motorized wheelchair includes dual cameras, proximity sensors, microphones, and rotation sensors for the wheels. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is w…

    Date Issued:
    2008-06-03
    Resource Type
    Patent
  • Inventor(s):
    Carl L. Enloe, Thomas E. McLaughlin, Eric J. Jumper, Thomas C. Corke
    Patent Number:
    US 7380756 B2
    Description:

    A single dielectric barrier aerodynamic plasma actuator apparatus based on the dielectric barrier discharge phenomenon is disclosed and suggested for application to aerodynamic uses for drag reduction, stall elimination and airfoil efficiency improvement. In the plasma actuator apparatus non-uniform in time and space, partially ionized gasses are generated by one or more electrode pairs each having one electrically encapsulated electrode and one air stream exposed electrode and energization b…

    Date Issued:
    2008-06-03
    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
    Resource Type
    Patent
  • Inventor(s):
    Steven R. Schmid
    Patent Number:
    US 8323349 B2
    Description:

    A bearing surface having increased wear resistance. Generally, certain aspects of the present invention are directed to an implant design based on concepts of unidirectional load application and the use of engineered surfaces to increase the amount of lubricant at the bearing surface, to thereby reduce wear of the bearing surface. Surfaces of certain bearing surface embodiments are fabricated to maximize lubricant retention, encourage lubricant entrainment, and/or restrict lubricant escape fr…

    Date Issued:
    2012-12-04
    Resource Type
    Patent
  • Inventor(s):
    Thomas C. Corke, Eric Matlis
    Patent Number:
    US 8513583 B2
    Description:

    An adaptive plasma optics cell includes a housing defining a chamber, and a gas disposed within the housing chamber. A first light transmissive electrode layer is coupled to a first side of the housing and a first light transmissive dielectric layer is coupled between the first light transmissive electrode layer and the housing chamber. A second electrode layer is coupled to a second side of the housing such that the housing chamber is at least partially disposed between the first and second …

    Date Issued:
    2013-08-20
    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
    Resource Type
    Patent
  • Inventor(s):
    Thomas C. Corke, Richard Spivey
    Patent Number:
    US 8091950 B2
    Description:

    A vehicle includes a surface over which airflow passes. A plasma actuator is configured to generate plasma above the surface, the plasma coupling a directed momentum into the air surrounding the surface to reduce separation of the airflow from the surface. A method of reducing separation of airflow from a surface of the vehicle includes generating plasma in air surrounding the surface at a position where the airflow would separate from the surface in the absence of the plasma.

    Date Issued:
    2012-01-10
    Resource Type
    Patent
  • Inventor(s):
    Eric Matlis, Scott Morris, Thomas C. Corke, Joshua Cameron
    Patent Number:
    US 8185349 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:
    2012-05-22
    Resource Type
    Patent
  • Inventor(s):
    Kaifeng Liu, Brian Thomas, Steven Charlebois
    Patent Number:
    US 8062739 B2
    Description:

    The present invention provides a hydrogel article having a multi-layered structure and exhibiting a gradient in polymer molecular weight. The invention also provides a method of forming a hydrogel article having a multi-layered structure and exhibiting a gradient in polymer molecular weight.

    Date Issued:
    2011-11-22
    Resource Type
    Patent
  • Inventor(s):
    Alan B. Cain, Eric J. Jumper, Donald J. Wittich, III, Edward J. Kerschen, David Cavalieri
    Patent Number:
    US 8096507 B2
    Description:

    An aircraft turret and fairing assembly for facilitating transmission of a directed energy beam from a directed energy device includes a turret section for directing an energy beam. The assembly also includes a fairing section aft of and adjacent to the turret section. Each of the turret section and the aft fairing section are coupled to an aircraft. The assembly also includes at least one sensor for detecting air speed of the aircraft and air pressure. The turret section and the aft fairing …

    Date Issued:
    2012-01-17
    Resource Type
    Patent