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  • Inventor(s):
    Timothy C. Ovaert
    Patent Number:
    US 8109050 B2
    Description:

    A floor including a flooring plate and a plurality of spaced apart stiffening columns extending from an underside of the flooring plate. The columns remain substantially rigid up to a predetermined critical pressure and then buckle as the pressure increases. The columns are at least partially surrounded by a resilient underlayment. Deflection stops may extend from the flooring plate to prevent over-buckling and/or permanent deformation of the stiffening columns. In some examples, the deflecti…

    Date Issued:
    2012-02-07
    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):
    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):
    Hsueh-Chia Chang, Zilin Chen, Fu-Chih Hsu, David Battigelli
    Patent Number:
    US 7960180 B2
    Description:

    Methods and apparatus to capture and release microbe particles using amino-functionalized silica substrates are described. An example apparatus adapted to capture a microbe particle includes a silica substrate and a positively charged material to at least partially coat the silica substrate. The positive charged material includes an aminopropyl functional group.

    Date Issued:
    2011-06-14
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Zachary Gagnon, Hsueh-Chia Chang
    Patent Number:
    US 7744738 B2
    Description:

    The present invention provides a method and apparatus for use in rapid particle transportation, separation, focusing, characterization, and release. Dielectrophoresis and electro-osmotic driven fluid convection are used independently or in tandem as the driving forces for particle manipulation and on occasion characterization. Although dielectrophoresis has been acknowledged for decades as a powerful technique for particle manipulation and characterization, long processing times and measureme…

    Date Issued:
    2010-06-29
    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):
    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
    Record Visibility:
    Public
    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
    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):
    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
    Record Visibility:
    Public
    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
    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