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List of files deposited in CurateND that match your search criteria
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- Inventor(s):
- Timothy C. Ovaert
- Patent Number:
- US 8919066 B2
- Description:
An apparatus including an impact surface 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 de…
- Date Issued:
- 2014-12-30
- Title
- Flooring apparatus for reducing impact energy during a fall
- Description
- An apparatus including an impact surface 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 deflections stops may assist the floor in providing a substantially rigid surface at very high pressures.
- Creator
- Timothy C. Ovaert
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- 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
- Title
- Plasma optimized aerostructures for efficient flow control
- 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 means for reducing aircraft, missile's, munition's and automobile's power requirements. These methods also provide alternate means for aerodynamic control using low-power hingeless plasma actuator devices.
- Creator
- Mehul Patel, Thomas C. Corke, Alan B. Cain
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- 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
- Title
- Tissue scaffolds having bone growth factors
- 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 the bioactive agents over time.
- Creator
- Ryan K. Roeder, Matthew J. Meagher, Robert J. Kane
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Nishant Chetwani, Catherine Cassou, David Go, Hsueh-Chia Chang
- Patent Number:
- US 8716675 B2
- Description:
An alternating current electrospray mass spectrometry device includes an electrospray device having at least one emitter providing a passageway for transmission of an analyte sample. At least one conductive element is in electrical communication with the at least one emitter. A power source generates an alternating current electric field to form a liquid cone at a tip of the emitter and ionizes the analyte sample present in the liquid cone. The frequency of the electric field entrains low mob…
- Date Issued:
- 2014-05-06
- Title
- Methods and apparatus for mass spectrometry utilizing an AC electrospray device
- Description
- An alternating current electrospray mass spectrometry device includes an electrospray device having at least one emitter providing a passageway for transmission of an analyte sample. At least one conductive element is in electrical communication with the at least one emitter. A power source generates an alternating current electric field to form a liquid cone at a tip of the emitter and ionizes the analyte sample present in the liquid cone. The frequency of the electric field entrains low mobility ions in the liquid cone. The AC electric field causes the emitter to discharge the liquid cone as a liquid aerosol drop, and a mass spectrometry device analyzes the ionized analyte sample to determine the composition of the contained analyte sample.
- Creator
- Nishant Chetwani, Catherine Cassou, David Go, Hsueh-Chia Chang
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- http://creativecommons.org/publicdomain/zero/1.0/
- 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
- Title
- Crashworthiness design methodology using a hybrid cellular automata algorithm for the synthesis of topologies for structures subject to nonlinear transient loading
- 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 designing of structures to be fabricated by an extrusion method having the same cross section along the direction of extrusion or stamped structures having thickness varying across the structure.
- Creator
- Kishore K. Pydimarry, Duane T. Detwiler, John E. Renaud, Neal M. Patel, Byungsoo Kang, Chandan K. Mozumder
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Fabio Semperlotti, Hongfei Zhu
- Patent Number:
- US 9437183 B2
- Description:
An embedded acoustic metamaterial lenses allows for ultrasonic beam-forming and high resolution identification of acoustic sources for structural health monitoring. The lenses design provides an alternative to conventional phased-array technology enabling the formation of steerable and collimated (or focused) ultrasonic beams by exploiting a single transducer. The ultrasonic beam can be steered by simply tuning the frequency of the excitation. Also, the embedded lens can be designed to achiev…
- Date Issued:
- 2016-09-06
- Title
- Metamaterial based acoustic lenses for structural health monitoring
- Description
- An embedded acoustic metamaterial lenses allows for ultrasonic beam-forming and high resolution identification of acoustic sources for structural health monitoring. The lenses design provides an alternative to conventional phased-array technology enabling the formation of steerable and collimated (or focused) ultrasonic beams by exploiting a single transducer. The ultrasonic beam can be steered by simply tuning the frequency of the excitation. Also, the embedded lens can be designed to achieve sub-wavelength resolution to clustered acoustic sources which is a typical scenario encountered in incipient structural damage.
- Creator
- Fabio Semperlotti, Hongfei Zhu
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Thomas C. Corke, Mehul Patel
- Patent Number:
- US 9,834,301 B1
- Description:
A method of increasing the performance of 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 …
- Date Issued:
- 2017-12-05
- Title
- Method of increasing the performance of aircraft, missiles, munitions and ground vehicles with plasma actuators
- Description
- A method of increasing the performance of 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 flow control over these vehicles. Various embodiments provide steps to increase the efficiency of aircraft, missiles, munitions and ground vehicles. The method of flow control reduces the power requirements of the aircraft, missile, munition or ground vehicle. These methods also provide alternative aerodynamic control using low-power hingeless plasma actuator devices.
- Creator
- Thomas C. Corke, Mehul Patel
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Thomas C. Corke, Richard Kaszeta, Calman Gold
- Patent Number:
- US 9848485 B2
- Description:
A plasma generating device intended to induce a flow in a fluid via plasma generation includes a dielectric separating two electrodes and a power supply. The first electrode is exposed to a fluid flow while the second electrode is positioned under the dielectric. The power supply is electrically coupled to a switch and the first and second electrodes. When the power supply is energized by repeated action of the switch, it causes a pulsed DC current between the electrodes which causes the flui…
- Date Issued:
- 2017-12-19
- Title
- Methods and apparatus for pulsed-DC dielectric barrier discharge plasma actuator and circuit
- Description
- A plasma generating device intended to induce a flow in a fluid via plasma generation includes a dielectric separating two electrodes and a power supply. The first electrode is exposed to a fluid flow while the second electrode is positioned under the dielectric. The power supply is electrically coupled to a switch and the first and second electrodes. When the power supply is energized by repeated action of the switch, it causes a pulsed DC current between the electrodes which causes the fluid to ionize generating a plasma. The generation of the plasma induces a force with a velocity component in the fluid.
- Creator
- Thomas C. Corke, Richard Kaszeta, Calman Gold
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Fabio Semperlotti, Mihir Sen
- Patent Number:
- US 9936763 B2
- Description:
A wearable, portable, self-contained refrigeration/cooling garment may effectively convert the energy of human movement into heat flux. The heat flux can then used to actively control the temperature of the human body or of part of it. In one example of the present disclosure, the garment is a type of footwear powered by the wearer’s ambulation.
- Date Issued:
- 2018-04-10
- Title
- Methods and apparatus for human motion controlled wearable refrigeration
- Description
- A wearable, portable, self-contained refrigeration/cooling garment may effectively convert the energy of human movement into heat flux. The heat flux can then used to actively control the temperature of the human body or of part of it. In one example of the present disclosure, the garment is a type of footwear powered by the wearer's ambulation.
- Creator
- Fabio Semperlotti, Mihir Sen
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Siyuan Zhang, Jeremiah Zartman, David Hoelzle, Cody Narciso
- Patent Number:
- US 9975121 B2
- Description:
A microfluidic device for evaluating a tissue sample can include a tissue chamber, a liquid inlet channel, a liquid outlet channel, and at least one of components (1)-(3). The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet and outlet channels can be in fluid communication with the tissue chamber. Components (1)-(3) can include: (1) a deformable membrane disposed within the tissue chamber and being configured to oscillate, upon app…
- Date Issued:
- 2018-05-22
- Title
- Microfluidic devices, systems, and methods for evaluating tissue samples
- Description
- A microfluidic device for evaluating a tissue sample can include a tissue chamber, a liquid inlet channel, a liquid outlet channel, and at least one of components (1)-(3). The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet and outlet channels can be in fluid communication with the tissue chamber. Components (1)-(3) can include: (1) a deformable membrane disposed within the tissue chamber and being configured to oscillate, upon application of pressure thereto, to mechanically compress the tissue sample; (2) first and second electrodes disposed about the tissue chamber and being configured such that delivery of electrical energy thereto creates an electrical gradient across the tissue chamber; and (3) at least one deformable wall, which partially defines the tissue chamber and is configured to stretch either uniaxially or biaxially upon application of negative pressure to the tissue chamber.
- Creator
- Siyuan Zhang, Jeremiah Zartman, David Hoelzle, Cody Narciso
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent
-
- Inventor(s):
- Jeremiah Zartman, David Hoelzle, Cody Narciso, Siyuan Zhang, Wendy Alvarez Barrios, Victoria Zellmer
- Patent Number:
- US 10168259 B2
- Description:
One aspect of the present disclosure can include a microfluidic device for imaging a tissue sample. The device can include a tissue chamber, a liquid inlet channel, and a liquid outlet channel. The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet channel can be fluid communication with the tissue chamber. The liquid outlet channel can be in fluid communication with the tissue chamber. The tissue chamber can be sized and dimensioned …
- Date Issued:
- 2019-01-01
- Title
- Microfluidic devices, systems, and methods for imaging tissue samples
- Description
- One aspect of the present disclosure can include a microfluidic device for imaging a tissue sample. The device can include a tissue chamber, a liquid inlet channel, and a liquid outlet channel. The tissue chamber can be defined by a plurality of walls, at least one of which is transparent. The liquid inlet channel can be fluid communication with the tissue chamber. The liquid outlet channel can be in fluid communication with the tissue chamber. The tissue chamber can be sized and dimensioned to completely immobilize the tissue sample during imaging.
- Creator
- Jeremiah Zartman, David Hoelzle, Cody Narciso, Siyuan Zhang, Wendy Alvarez Barrios, Victoria Zellmer
- Publisher
- U.S. Patent and Trademark Office
- Language
- English
- Rights
- All rights reserved
- Resource Type
- Patent