Search Results - subrata+roy

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Linear Plasma Actuator for Dynamic Stall Control
Ionizes and Controls Air Flow to Improve Helicopter Wing Performance This helicopter wing flow control device deploys a plasma actuator with a linear counter-flow point embedded electrode design to force airflow around curved surfaces to counter dynamic stalls. Dynamic stalls occur when a wing loses lift at a high pitch rate. These undesirable events...
Published: 8/28/2024   |   Inventor(s): Subrata Roy, Alexander Lilley, Miguel Visbal
Keywords(s):  
Category(s): Technology Classifications > Engineering, Technology Classifications > Engineering > Mechanical, Technology Classifications > Engineering > Materials
Method to create Self-Sterilizing Devices using Plasma Energy
Maintains a Constant Rate of Sterilization When Built Into Medical Devices and SurfacesThis self-generated plasma field provides for self-sterilization of devices used in medical procedures, drug delivery, consumer products, and food preparation and to surfaces, affording them self-sterilizing properties. It is estimated that 76 million illnesses, 325,000...
Published: 8/21/2024   |   Inventor(s): Karl Zawoy, Subrata Roy
Keywords(s):  
Category(s): Technology Classifications > Medical Devices > Consumable, Technology Classifications > Engineering > Others
Wingless, Electromagnetic Aerial Vehicle that is Quieter and Omnidirectional
Performs Better in Adverse Conditions Due to Increased Stability and Improved Maneuverability This wingless, hovering aerial vehicle not only utilizes an advanced power source, but also maintains stability during adverse weather conditions such as windstorms. Unmanned aerial vehicles (UAVs) have become increasingly important tools for military and...
Published: 2/22/2022   |   Inventor(s): Subrata Roy
Keywords(s):  
Category(s): Technology Classifications > Engineering > Mechanical
Blade Tip Vortex Control for Smoother Flights
Plasma Actuators Reduce Drag and Dissipate Vortices on Plane Wings and Helicopter Blades These active flow controls use actuators to break down vortices formed at the tips of wings and blades to reduce noise and turbulence during flight. The growing market for aircraft actuators is projected to reach $21 billion by 2030. The motion of air flowing over...
Published: 6/27/2021   |   Inventor(s): Subrata Roy, Sarthak Roy
Keywords(s):  
Category(s): Technology Classifications > Engineering > Mechanical
Low-Cost, Flexible, Paper-Based Plasma Sanitizer
Low-Cost, Flexible, Paper-Based Plasma Sanitizer Invention Summary: Healthcare-associated infections (HAIs) are a major challenge facing disease control organizations and healthcare providers worldwide. In 2011, there were 721,800 cases of HAIs reported in the US, with 75,000 patients ultimately dying from the infections. Because a leading cause...
Published: 6/13/2024   |   Inventor(s): Aaron Mazzeo, Jingjin Xie, Qiang CHEN, Subrata Roy
Keywords(s): Antibacterial, Antiviral, Cleaning/Disinfecting Products, Electronics, Flexible electronics, Packaging, Wound healing
Category(s): Technology Classifications > Physical Sciences & Engineering, Technology Classifications > COVID-19, Technology Classifications > Healthcare & Life Sciences, Technology Classifications > Electronics/Semiconductor, Technology Classifications > Therapeutics
Plasma Actuator for High-Speed Aircraft Flow Control
Energy-Efficient, Solid-State Device Rapidly Heats Airfoil Surfaces to Optimize Aerodynamic PerformanceThis electrically-driven plasma actuator generates heat and induces air flow to reduce drag on aircraft surfaces like wings and blades. Solid-state flow control devices are in high demand for moderate to high flow speed applications. Available plasma...
Published: 6/27/2021   |   Inventor(s): Subrata Roy, Ryan Durscher
Keywords(s):  
Category(s): Technology Classifications > Engineering > Materials
Electrically Controlled, Fluid-based Transducer that Generates Flow in Multiple Directions
Actuator Provides Rapid Response, Precise Control, and Varying Modes of Fluid FlowThis electro-fluid-based actuator provides highly responsive and precisely directed flow in multiple opposing or synchronous directions. An actuator is a type of transducer that responds to an electrical signal by initiating motion or, essentially, pushing on something....
Published: 6/27/2021   |   Inventor(s): Subrata Roy, Nicholas Campbell
Keywords(s): dynamic jet, Flow Control, multi-directional transducer, plasma actuated jet
Category(s): Technology Classifications > Engineering > Materials, Technology Classifications > Engineering > Mechanical
Plasma Actuator Fan
No Motor Required; Plasma Actuator Generates Electrohydrodynamic Forces to Control Air FlowThis fan utilizes a plasma actuator to generate electrohydrodynamic body forces that drive the flow of fluid or air through the system. Traditional fans cool rooms by moving still air rather than by directly changing the temperature of the air. By circulating...
Published: 6/27/2021   |   Inventor(s): Subrata Roy
Keywords(s): airflow, Plasma Actuator, plasma fan, rotating machinery
Category(s): Technology Classifications > Engineering, Technology Classifications > Engineering > Mechanical
Device to Reduce Cavity Noise in Aircrafts Using Active and Passive Flow Control
Facilitates Noise Control and Prevents Fatigue Damages from Open Cavity FlowsThis noise reduction device, with active and passive receptive channels, protects aircraft from damage by decreasing the noise generated from shear layers of flow over open cavities. These pressure oscillations can cause fatigue damage to aircrafts' landing gears and weapons...
Published: 6/27/2021   |   Inventor(s): Subrata Roy, Arnob Gupta
Keywords(s): aircraft, Cavity flows, Noise Control, Plasma, pressure oscillation
Category(s): Technology Classifications > Engineering > Materials, Technology Classifications > Engineering > Mechanical
Thrust Stand with Nano-Newton Resolution
Measures the Forces Generated by Small Satellites With More Precision Than Available ProductsThis thrust stand is suitable for very minute force measurement applications. It has nano-Newton resolution. Specifically, compared to existing products, it more accurately gauges the vibrations and thrust produced by thrusters in small satellites. Because they...
Published: 6/27/2021   |   Inventor(s): Subrata Roy, Jignesh Soni
Keywords(s): eddy damper, force balance, Instrumentation, nano-Newton
Category(s): Technology Classifications > Engineering, Technology Classifications > Engineering > Instrumentation-Sensors-Photonics, Technology Classifications > Engineering > Mechanical
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