Patent β’ #8,585,413. Examples of rotary electrical connectors include a first pair and a second pair of opposing sheaves coupled together by intersecting first shaft connecting the first pair of opposing sheaves and a second shaft connecting the second pair of opposing sheaves, and at least partially electrically conductive belt disposed about...
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High current density, low contact resistance wide bandgap contacts
Patent β’ #10,505,031. A high current density, low contact resistance contact for wide bandgap (WBG) or ultra-wide bandgap materials (UWBG) is disclosed. The contact is lithographically formed so that a total perimeter length of the contact structure is at least twice the length of the side of a contact pad closest to...
Belt structures for rotary electrical contact device
Patent β’ #10,971,876. Technologies pertaining to a rotary electrical contact device are described herein. A rotary electrical contact device comprises a first sheave that is disposed about a first axis and a second sheave that rotates about the first axis or a second axis that is parallel to the first axis. The...
Method for multi-axis, non-contact mixing of magnetic particle suspensions
Patent β’ #9,987,605. Continuous, three-dimensional control of the vorticity vector is possible by progressively transitioning the field symmetry by applying or removing a dc bias along one of the principal axes of mutually orthogonal alternating fields. By exploiting this transition, the vorticity vector can be oriented in a wide range of directions...
3D-printed apparatus for efficient fluid-solid contact
Patent β’ #10,493,693. Additively manufactured monolithic structures for containing and directing flows of fluids are described herein, which can achieve high contact area between fluids and solids while maintaining uniform flow conditions and requiring low applied pressures to yield desired flow rates, for use in heat exchangers, chromatography columns, catalytic converters, etc....
Apparatuses and methods for tuning center frequencies
Patent β’ #9,270,281. Apparatuses and methods for tuning center frequencies are described herein. Examples of tuning described herein including tuning using feedback from the resonator. Variable gain feedback for tuning of acoustic wave resonators is provided in some examples. An example apparatus may include a resonator and a feedback loop. The resonator...
Belt structures for rotary electrical contact device
Patent β’ #11,031,744. Technologies pertaining to a rotary electrical contact device are described herein. A rotary electrical contact device comprises a first sheave that is disposed about a first axis and a second sheave that rotates about the first axis or a second axis that is parallel to the first axis. The...
Non-contact temperature control system for microfluidic devices
Patent β’ #10,406,528. The present invention relates to a temperature control system for a microfluidic device. The system allows for non-contact heating by employing an infrared emitter. In some instances, the system can be used in conjunction with a centrifugal microfluidic device. Optionally, a mask can be implemented to provide selective heating...
Wear-Resistant Platinum Gold Alloy
Featured Opportunity β’ From cell phones to satellites, industry spends millions on traditional gold alloy electrical contact coatings While gold and other metal alloys have been an industry standard to protect metal components from wear due to metal on metal contact, they still experience deterioration over time. Using a novel synthesis approach, Sandia...
Optimized Alumina Coagulants for Water Purification
Featured Opportunity β’ This innovative technology uses a water treatment coagulant, or reagent, to facilitate the process of water purification. By inserting a single gallium atom in the center of an aluminum oxide cluster, the stability and efficacy of the reagent is greatly improved. This stability also provides a longer shelf life, increased...
Surface–micromachined rotatable member having a low-contact-area hub
Patent β’ #6,402,969. A surface-micromachined rotatable member formed on a substrate and a method for manufacturing thereof are disclosed. The surface-micromachined rotatable member, which can be a gear or a rotary stage, has a central hub, and an annulus connected to the central hub by an overarching bridge. The hub includes a...
High resolution, non-contact removal rate module for serial sectioning
Patent β’ #10,260,865. The present invention relates to a metallographic system including a measurement module configured to provide precise differential measurements of a sample after serial sectioning, as well as methods of employing such a module. In particular example, the measurement module provides differential measurement(s) without contacting the surface of a sample,...
Non-contact rapid reader system for reflective particle tags
Patent β’ #10,572,786. A reflective particle tag reader system includes a read head assembly having a camera, illuminators, and a rigid frame portion for supporting the camera and the illuminators. The illuminators illuminate a focal point located opposite the camera where a reflective particle tag is placed. A computer in data communication...
Proactive Intrusion Detection and Mitigation Systems (PIDMS)
Featured Opportunity β’ PIDMS detects and mitigates cyberattacks to energy utilities and other distributed energy resources in real-time The Proactive Intrusion Detection and Mitigation System (PIDMS) is an award-winning sensing and monitoring system that detects cyberattacks and secures grid-edge photovoltaic (PV) smart inverters capable of making autonomous decisions to stabilize the grid. Smart...
Fiber-Optic Long-Line Position Sensor
Featured Opportunity β’ Sandia National Laboratories has developed a side-emitting fiber optic position sensor and method of determining an unknown position of an object by using the sensor.Non-electrical position sensors like the one developed by Sandia are desirable for use in hazardous environment, e.g., for measuring the liquid level in gasoline or jet...
TOPHATβ’ for the Alignment & Focus of Heliostat Mirror Facets
Featured Opportunity β’ The Theoretical Overlay Photographic Heliostat Alignment Technique (TOPHAT) is a unique method which helps to accurately and effectively concentrate solar energy onto a receiver. By utilizing a camera/target fixture placed in front of the heliostat TOPHAT aligns and focuses the mirrors on a heliostat. It uses the photographs taken by...
Tamper Detection Using Time-Reversal Acoustics
Featured Opportunity β’ Monitor and safeguard high-value assets such as enclosures, materials, and storage containers using time-reversed acoustic waves Tamper-indicating technologies are used to verify the integrity of monitored items or high valueassets. As the number of monitored items increases internationally and monitored items in storage become more difficult to access, new tamper-indicating...
Automated Gloving System
Featured Opportunity β’ Engineers at Sandia Labs have invented the only fully Automated Gloving System to prepare and dispense gloves for quick application while reducing the potential for contact contamination. Dust and particulate matter can cause catastrophic failure in a cleanroom where microelectronics and semiconductors are manufactured. Cleanliness is also essential in a...
Fluid Interface Position Optical Sensor
Featured Opportunity β’ Sandia National Laboratories has developed a continuously monitoring fluid interface optical sensor.The method of determining the liquid level through a single immersed optical wave guide allows for a simple and mobile solution to fluid monitoring systems.Current technologies use monitored floating devices and require mechanical or magnetic coupling, which can pose...
Twistact
Featured Opportunity β’ A fundamentally new type of rotary electrical contact that addresses short operating lifetime due to sliding-contact wear and electrical arcing associated with contact bounce Researchers at Sandia National Laboratories developed a fundamentally new type of rotary electrical contact that addresses the two limitations of conventional brush/slip ring technology: (1) short...
Zero-Power Radio Receiver
Featured Opportunity β’ Sandia has developed a miniature, zero-power radio receiver that can be easily integrated in a wide range of devices to provide continuous wireless connectivity. The underlying principle behind the Zero-Power Receiver is that the powered radio frequency electronics that are used in most wireless receivers can be replaced with electronics...
Linearized Joint Interface
Featured Opportunity β’ A linearized joint interface that delivers greater predictability and reduced variation in the structural response of complex assemblies Predicting the dynamic properties of a structural system is particularly valuable for manufacturers of large assemblies because structural dynamics are notoriously difficult and complex to model. Even with intensive testing, order-of magnitude...
Microsphere Templated Gallium Nitride Growth and Liftoff
Featured Opportunity β’ The LED market is one of the fastest growing markets worldwide, driven by demand for clean solid state lighting, LED displays and mobile devices. GaN-based materials are essential components of these technologies. Due to the very high cost and lack of availability of bulk GaN substrates, current GaN production methods...
Multi-line triggering and interdigitated electrode structure for photoconductive semiconductor switches
Patent β’ #7,173,295. An improved photoconductive semiconductor switch comprises multiple-line optical triggering of multiple, high-current parallel filaments between the switch electrodes. The switch can also have a multi-gap, interdigitated electrode for the generation of additional parallel filaments. Multi-line triggering can increase the switch lifetime at high currents by increasing the number of...
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