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Articles 1 - 23 of 23
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Method And Apparatus For Characterizing Microscale Formability Of Thin Sheet Materials, Nasr A. Shuaib, Marwan K. Khraisheh
Method And Apparatus For Characterizing Microscale Formability Of Thin Sheet Materials, Nasr A. Shuaib, Marwan K. Khraisheh
Mechanical Engineering Faculty Patents
A method of predicting sheet formability at a microscale level includes the steps of providing a grid pattern on a test sheet, bulging the test sheet to a hemispherical shape until a crack is initiated on the surface of the test sheet, detecting the initiation of the crack, acquiring two images of the surface adjacent to the crack and calculating surface strains on the test sheet.
Fluid Scrubber And Spray Booth Including The Fluid Scrubber, Abraham J. Salazar
Fluid Scrubber And Spray Booth Including The Fluid Scrubber, Abraham J. Salazar
Mechanical Engineering Faculty Patents
A wet scrubber for scrubbing a fluid. The wet scrubber may include an inlet for receiving the fluid and a vortex chamber, in communication with the inlet, for causing at least a portion of the fluid to circulate. The wet scrubber may also include at least one diffuser for exhausting the fluid from the vortex chamber, the diffuser configured to substantially prevent fluid exhausted from the diffuser from recirculating back into the diffuser. A paint booth and a method of scrubbing a fluid are also provided.
Systems And Methods For Detecting Defects In Coatings Utilizing Color-Based Thermal Mismatch, Richard Alloo, Kozo Saito, Belal Gharaibeh, Keng Hoo Chuah, Nelson Kudzo Akafuah, Ahmad Salaimeh
Systems And Methods For Detecting Defects In Coatings Utilizing Color-Based Thermal Mismatch, Richard Alloo, Kozo Saito, Belal Gharaibeh, Keng Hoo Chuah, Nelson Kudzo Akafuah, Ahmad Salaimeh
Mechanical Engineering Faculty Patents
A method of analyzing a thermal image of a coated substrate to determine the presence of defects includes determining a defect temperature range based on a color of the coated substrate and the maximum temperature of the coated substrate in the thermal image. Thereafter, the thermal image is processed by determining a signal value of a pixel of interest based on a temperature of the pixel of interest, temperatures of pixels in a kernel of pixels surrounding the pixel of interest, and the color of the coated substrate. The signal value of the pixel of interest is then compared to …
Method And Apparatus For Characterizing Microscale Formability Of Thin Sheet Materials, Nasr A. Shuaib, Marwan K. Khraisheh
Method And Apparatus For Characterizing Microscale Formability Of Thin Sheet Materials, Nasr A. Shuaib, Marwan K. Khraisheh
Mechanical Engineering Faculty Patents
A method of predicting sheet formability at a microscale level includes the steps of providing a grid pattern on a test sheet, bulging the test sheet to a hemispherical shape until a crack is initiated on the surface of the test sheet, detecting the initiation of the crack, acquiring two images of the surface adjacent to the crack and calculating surface strains on the test sheet.
Uniaxially-Driven Controlled Biaxial Testing Fixture, Fadi K. Abu-Farha, Marwan K. Khraisheh
Uniaxially-Driven Controlled Biaxial Testing Fixture, Fadi K. Abu-Farha, Marwan K. Khraisheh
Mechanical Engineering Faculty Patents
A uniaxially-driven controlled biaxial testing fixture includes a base, a first coupler mounted to the base, and a load input drive rack mounted for linear movement with respect to the base. A second coupler and a first specimen grip are both mounted to the load input drive rack. Second, third and fourth specimen grips are also mounted for linear movement with respect to the base. First, second and third drive mechanisms connect the load input drive rack to the second, third and fourth specimen grips. Together the four specimen grips are oriented to provide biaxial application of force to a …
Plasma Actuator, Jamey D. Jacob
Plasma Actuator, Jamey D. Jacob
Mechanical Engineering Faculty Patents
An actuator including a first and second conductor on a dielectric, wherein application of a voltage to the first conductor creates a plasma, thereby modifying a fluid flow in communication with the actuator. Related systems and methods are also provided.
Device And Methods For Atomizing Fluids, Vedanth Srinivasan, Abraham J. Salazar, Kozo Saito, Richard Alloo, Sakakibara Masahito
Device And Methods For Atomizing Fluids, Vedanth Srinivasan, Abraham J. Salazar, Kozo Saito, Richard Alloo, Sakakibara Masahito
Mechanical Engineering Faculty Patents
One embodiment of the invention is directed to an apparatus for atomizing a fluid. This apparatus includes an atomizing nozzle assembly. The atomizing nozzle assembly includes: a spray applicator enclosure having a fluid entry zone, a flow shape profiler region, a transducer, and a cavitation enhancer module, wherein the cavitation enhancer module includes a residence modulation zone and the residence modulation zone includes a backward facing step region. The apparatus is configured such that fluid can enter the fluid entry zone to the nozzle profiler, the transducer and the cavitation enhancer module. Other embodiments relate to methods for atomizing fluids.
Methods And Devices For Cryopreservation Of Biological Cells And Tissues, Dayong Gao, Gary Van Zant, Xiangdong Cui
Methods And Devices For Cryopreservation Of Biological Cells And Tissues, Dayong Gao, Gary Van Zant, Xiangdong Cui
Mechanical Engineering Faculty Patents
Novel methods, compositions, and devices for achieving optimal cooling of living cells during cryopreservation are disclosed. In one aspect, the method comprises gradually cooling the cell to a first predetermined temperature, followed by rapidly cooling the cell to a second predetermined temperature. In another aspect, a device is described for achieving a desired cooling rate for a cell, comprising a first container for holding a cell, a second container for holding the first container, and optionally a frame for holding the first container in a spaced apart relationship with the second container. The method of the invention comprises placing cells …
Systems And Methods For Inspecting Coatings, Kozo Saito, Mohammed I. Hassan Ali, Akira Numasato, Mohammed A. Omar, Sakakibara Masahito, Suzuki Toshikazu, Tanigawa Yasuo
Systems And Methods For Inspecting Coatings, Kozo Saito, Mohammed I. Hassan Ali, Akira Numasato, Mohammed A. Omar, Sakakibara Masahito, Suzuki Toshikazu, Tanigawa Yasuo
Mechanical Engineering Faculty Patents
A system for detecting defects in paint coatings includes a temperature manipulation apparatus configured to change the temperature of a surface and a coating applied to the surface. The system may further include an infrared sensor for measuring the change in temperature of the surface and coating and a processor to compare the measured change in temperature of the surface and coating to an expected change of temperature in order to determine anomalies in the coatings.
Seal Assembly For Machinery Housing, Lyndon Scott Stephens, Kevin W. Kelly
Seal Assembly For Machinery Housing, Lyndon Scott Stephens, Kevin W. Kelly
Mechanical Engineering Faculty Patents
A seal assembly for a machinery housing includes a seal ring having a micro heat exchanger and a gland plate for securing the seal ring to the machinery housing. The gland plate includes a cooling fluid port in communication with the micro heat exchanger.
Synthesis Of Multi-Wall Carbon Nanotubes Using Unseeded Hydrocarbon Diffusion Flames, Kozo Saito, Forman A. Williams, Alvin S. Gordon, Liming Yuang
Synthesis Of Multi-Wall Carbon Nanotubes Using Unseeded Hydrocarbon Diffusion Flames, Kozo Saito, Forman A. Williams, Alvin S. Gordon, Liming Yuang
Mechanical Engineering Faculty Patents
A method is provided for synthesizing carbon nanotubes from unseeded methane-air diffusion flames. A novel stainless steel and Ni—Cr wire probe is also provided for collecting carbon nanotubes from those diffusion flames.
Programmable Multi-Dose Intransal Drug Delivery Device, Daniel Wermeling, Ryan Vallance, Aravind Balasubramanian, Bruce L. Walcott, John Alan Main, James E. Lumpp Jr.
Programmable Multi-Dose Intransal Drug Delivery Device, Daniel Wermeling, Ryan Vallance, Aravind Balasubramanian, Bruce L. Walcott, John Alan Main, James E. Lumpp Jr.
Mechanical Engineering Faculty Patents
An apparatus and method for the self-administration of a plurality of doses of an intranasal liquid pharmaceutical composition, including opioid analgesics, that includes a drug delivery device containing a plurality of sealed vials, each vial containing a predetermined volume of the pharmaceutical composition, a pump assembly for conveying the liquid pharmaceutical composition from the interior of the vial and discharging it as a nasal spray in response to manual activation by the patient, and programmable means for sequentially advancing a vial to the ready position after passage of a prescribed time interval following the last activation of the delivery device.
System And Device For Characterizing Shape Memory Alloy Wires, Robert Ryan Vallance, Bruce L. Walcott, James E. Lumpp, Sumanth Chikkamaranahalli, Osamah A. Rawashdeh, Eric Wolsing
System And Device For Characterizing Shape Memory Alloy Wires, Robert Ryan Vallance, Bruce L. Walcott, James E. Lumpp, Sumanth Chikkamaranahalli, Osamah A. Rawashdeh, Eric Wolsing
Mechanical Engineering Faculty Patents
Instruments and methods for measuring a property of a shape memory alloy are provided. The instrument includes a base plate, a non-contact movable mass, a force gauge, an actuator, a biasing spring, a heater for heating the shape memory alloy, and a non-contact displacement detector. The biasing spring and the shape memory alloy are disposed whereby a force applied thereby is applied substantially through a center of stiffness of the movable mass. The displacement detector measures a displacement of the movable mass in a colinear direction with a direction of movement of the movable mass and with a direction of …
Processes For Nanomachining Using Carbon Nanotubes, Robert Ryan Vallance, Apparao M. Rao, M. Pinar Mengüç
Processes For Nanomachining Using Carbon Nanotubes, Robert Ryan Vallance, Apparao M. Rao, M. Pinar Mengüç
Mechanical Engineering Faculty Patents
Novel methods and devices for nanomachining a desired pattern on a surface of a conductive workpiece are disclosed. In one aspect, the method comprises using an electron beam emitted from one or more nanotubes to evaporate nanoscale quantities of material from the workpiece surface. The surface of the workpiece to be machined may be excited to a threshold energy to reduce the amount of power required to be emitted by the nanotube. In another aspect, a device is described for nanomachining a desired pattern on a surface of a conductive workpiece, comprising a vessel capable of sustaining a vacuum, a …
Smart Material Control System And Related Method, John A. Main, George C. Nelson
Smart Material Control System And Related Method, John A. Main, George C. Nelson
Mechanical Engineering Faculty Patents
A smart material control system and related method is disclosed for adaptively controlling the movement of an adaptive structure. The adaptive structure includes a smart material layer bonded to a conductive substrate in a bimorph configuration. A charge projector, such as an electron gun, is utilized to project charges onto the smart material layer of the adaptive structure. A voltage/charge source adaptively controls the potential of the conductive substrate. Depending on the placement of the projected charges and the adaptively controlled potential of the conductive substrate the displacement/curvature is precisely controlled. In an alternate embodiment, two smart material layers are …
Radiation Modulator System, M. Pinar Mengüç, Bruce L. Walcott, Stephen R. Swabb, Michael A. Marra Iii
Radiation Modulator System, M. Pinar Mengüç, Bruce L. Walcott, Stephen R. Swabb, Michael A. Marra Iii
Mechanical Engineering Faculty Patents
A radiation modulator system and related method for actively controlling a flame in a combustion system are provided. The system includes a plurality of radiation modulators positioned adjacent the flame. A sensor arrangement is provided for sensing combustion characteristics of the flame and generating a sensor signal representative of the combustion characteristics. The sensor signal is received in a computer which then generates a control signal for transmission to a linkage arrangement which provides for the repositioning of the radiation modulators. Thus, the flame is actively controlled by continually repositioning the modulators in response to the sensor signal and the …
Apparatus And Method For Measuring 3-D Weld Pool Shape, Radovan Kovacevic, Yu M. Zhang
Apparatus And Method For Measuring 3-D Weld Pool Shape, Radovan Kovacevic, Yu M. Zhang
Mechanical Engineering Faculty Patents
A method and apparatus are provided allowing the determination of 3-D weld pool surface geometry in the presence of a welding arc during a welding operation. The method includes the steps of illuminating the weld pool surface with diffused, structured light and detecting specular reflection of that diffused, structured light from the weld pool surface. An acquired image results. By analyzing the acquired image it is possible to determine the geometry of the weld pool surface. The apparatus for performing the method includes a high intensity light source, a diffuser and a structured light forming grid. A camera is provided …
Apparatus And Method Of High-Pressure Waterjet Assisted Cooling/Lubrication In Machining, Radovan Kovacevic
Apparatus And Method Of High-Pressure Waterjet Assisted Cooling/Lubrication In Machining, Radovan Kovacevic
Mechanical Engineering Faculty Patents
An apparatus for high-pressure waterjet assisted machining includes a drive motor, spindle and rotary cutting tool with cutting inserts. The apparatus further includes a high-pressure intensifier pump providing cutting fluid at a pressure greater than 50,000 psi. A cutting fluid conduit system in the rotary cutting tool includes a main flow channel, a distribution manifold, a plurality of radially extending feed channels and a plurality of cooperating nozzles for delivering fluid behind the cutting inserts. The cutting fluid then passes through one or more apertures in the inserts into an interface defined by the inserts of the cutting tool and …
Active Vibration Control Device, Keith E. Rouch, Sanjiv Tewani, Bruce L. Walcott, Ted R. Massa, Robert W. Stephenson, L. Scott Stephens
Active Vibration Control Device, Keith E. Rouch, Sanjiv Tewani, Bruce L. Walcott, Ted R. Massa, Robert W. Stephenson, L. Scott Stephens
Mechanical Engineering Faculty Patents
An active vibration control device for controlling vibration in a cantilevered member and a method for the same are disclosed. The device is comprised of a cantilevered member having a longitudinal axis comprising a sensor mounted near the free end of the member to measure motion of the member in a transverse direction and to produce a corresponding signal. A force generating assembly is mounted to the member near the free end to oppose the measured motion with a force thereby minimizing subsequent motion along the transverse axis caused by vibration.
Method And Apparatus For Conversion Of Coal In Situ, Ottfried J. Hahn
Method And Apparatus For Conversion Of Coal In Situ, Ottfried J. Hahn
Mechanical Engineering Faculty Patents
A method for the electro-thermal and electrochemical underground conversion of coal into oil and by-products comprises the steps of inserting an underground probe into a bore hole until the probe is in close proximity to a coal seam. A mixture of air, steam, an electrolyte and a suitable catalyst is supplied to the probe, and the mixture is then sprayed directly on the coal seam through a passage in a nozzle. The probe is also energized with electricity applied to the nozzle to produce an arc between the coal and the probe, simultaneous with the spraying of the mixture on …
Bevolute Gear System, Willis M. Carter
Bevolute Gear System, Willis M. Carter
Mechanical Engineering Faculty Patents
The present invention relates to a bevolute gearing system which transmits torque between non-intersecting shafts at right angles to each other. The bevolute gear system includes a pinion gear which is flat and in one plane. The pinion gear is designed to include teeth which are shaped in the form of an involute spiral. The bevolute gear system includes a second gear which is also designed to include teeth which are shaped in the form of an involute spiral. The second gear is mounted on a non-intersecting axis at a right angle to the axis of the pinion gear. The …
Trailer Hitch, T. Richard Robe
Trailer Hitch, T. Richard Robe
Mechanical Engineering Faculty Patents
The present invention is directed to a trailer hitch for a vehicle. The trailer hitch is designed to be connected to a vehicle and permits two degrees of freedom for the hitchpoint. The first degree of freedom is in a lateral direction which permits the hitchpoint to have freedom to move horizontally in a lateral direction. This degree of freedom is dampened by a viscous dampener to improve the lateral stability of a trailer connected to the hitchball. Further, springs are provided to resist lateral movement and to restore the hitchpoint to its original position during the pulling of a …
Bevolute Gear System, Willis M. Carter
Bevolute Gear System, Willis M. Carter
Mechanical Engineering Faculty Patents
The present invention relates to a bevolute gearing system which transmits torque between non-intersecting shafts at right angles to each other. The bevolute gear system includes a pinion gear which is flat and in one plane. The pinion gear is designed to include teeth which are shaped in the form of an involute spiral. The bevolute gear system includes a second gear which is also designed to include teeth which are shaped in the form of an involute spiral. The second gear is mounted on a non-intersecting axis at a right angle to the axis of the pinion gear. The …