Sammy A. Nabors

Sammy A. Nabors's picture
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Representing Technologies

Advanced Magnetostrictive Regulator
available technology

Advanced Magnetostrictive Regulator

Magnetostrictive materials used in valves developed at Marshall allow the valve to be opened and closed via application of a magnetic field to the outside of the valve envelope. This process contains all moving parts inside the pressure shell, eliminating the need for feedthroughs or mechanical...
Ultrasonic Stir Welding
available technology

Ultrasonic Stir Welding

Ultrasonic Stir Welding is a solid state stir welding process, meaning that the weld work piece does not melt during the welding process. The process uses a stir rod to stir the plasticized abutting surfaces of two pieces of metallic alloy that forms the weld joint. Heating is done using a...
Variable-Power Handheld Laser Torch
available technology

Variable-Power Handheld Laser Torch

Features of the handheld torch's design include manual controls to modify the laser diameter and power output in real time. This ability allows the user to adjust the laser depending on circumstantial needs, resulting in a torch that is well suited for in-field repairs of metals where space and...
NASA-427: A New Aluminum Alloy
available technology

NASA-427: A New Aluminum Alloy

The NASA-427 alloy, with its origins in the Ares rocket program, has high potential for use in a number of automotive applications, including cast aluminum wheels, control arms, steering knuckles, and other components. Why its Better This technology uses precise chemistry to improve the mechanical...
Adjustable Liquid Power Load for RF Systems
available technology

Adjustable Liquid Power Load for RF Systems

The adjustable liquid power load is a highly safe and reliable system. Rapid power absorption with negligible temperature changes is achieved due to the mass and specific heat properties of the liquid. System matching, which is needed to provide maximum power transfer between the source and the...
Thermal Stir Welding
available technology

Thermal Stir Welding

NASA's new thermal stir technology addresses shortcomings in fusion welding and friction stir welding. Fusion welding compromises the microstructure of the material and thus lessens its physical properties. Friction stir welding is limited by the dependent heating and stirring functions when using...
New Optics See More with Less
available technology

New Optics See More with Less

This technology emerged from NASA's advanced optics research for space applications. Unlike fish-eye lenses, which use refraction to produce a 190-degree image field, NASA Marshall Space Flight Center's panoramic reflecting optic lens uses both refraction and internal reflection to provide a unique...
Non-Collinear Valve Actuation System
available technology

Non-Collinear Valve Actuation System

The actuator and return spring are connected non-collinearly using a rotably-affixed four bar linkage arm. The non-collinearity of the primary actuating system and return spring system of the NASA actuator allows the system to use a larger stroke while the return spring system experiences...
Fluid Structure Coupling Technology
available technology

Fluid Structure Coupling Technology

FSC is a passive technology that can operate in different modes to control vibration: Harmonic absorber mode: The fluid can be leveraged to act like a classic harmonic absorber to control low-frequency vibrations. This mode leverages already existing system mass to decouple a structural resonance...
Improving Formability of Al-Li Alloys
available technology

Improving Formability of Al-Li Alloys

Via this NASA innovation, a product is first heated to a temperature within the range of 204 to 343 degrees C for an extended soak of up to 16 hours. The product is then slowly heated to a second temperature within the range of 371 to 482 degrees C for a second soak of up to 12 hours. Finally, the...
Liquid level sensing system
available technology

Liquid level sensing system

A liquid level sensing system includes waveguides disposed in a liquid and distributed along a path with a gap between adjacent waveguides. A source introduces electromagnetic energy into the waveguides at a first end of the path. A portion of the electromagnetic energy exits the waveguides at a...
Space vehicle valve system
available technology

Space vehicle valve system

The present invention is a space vehicle valve system which controls the internal pressure of a space vehicle and the flow rate of purged gases at a given internal pressure and aperture site. A plurality of quasi-unique variable dimension peaked valve structures cover the purge apertures on a space...
Safety drain system for fluid reservoir
available technology

Safety drain system for fluid reservoir

A safety drain system includes a plurality of drain sections, each of which defines distinct fluid flow paths. At least a portion of the fluid flow paths commence at a side of the drain section that is in fluid communication with a reservoir's fluid. Each fluid flow path at the side communicating...
Hermetic Seal Leak Detection
available technology

Hermetic Seal Leak Detection

How it works An hermetically sealed item is placed in the leak detection system chamber and the device is activated while the resulting pressure is monitored by a data collection system. Any large leak present is immediately indicated by the data system pressure response. For very small leaks, the...
Fluid Flow Metering and Mixing Technologies
available technology

Fluid Flow Metering and Mixing Technologies

The suite of innovations includes: a fluid-mixing plug with metering capabilities; an unbalanced-flow, fluid-mixing plug with metering capabilities; a flow meter plug with length-to-hole size uniformity; and an eddy-current-minimized flow plug for use in flow conditioning and flow metering. How it...
High-Power/Pulsed-Power Electrical Switch
available technology

High-Power/Pulsed-Power Electrical Switch

Ignitrons are high-current switches that can open and close very quickly by using vaporized-metal plasma arcs to complete a circuit. Mercury is typically used because it does not tend to plate out the internal surfaces of the ignitron structure and cause a short-circuit pathway, permanently closing...
Low-Cost, Long-Lasting Valve Seal
available technology

Low-Cost, Long-Lasting Valve Seal

NASA&#8217s technique simplifies the seat installation process by requiring less installation equipment, eliminating the need for unnecessary apparatus such as fasteners and retainers. Multiple seals can be installed simultaneously, saving both time and money. NASA has tested the long-term...
Gimbal for Steering Propelled CubeSats
available technology

Gimbal for Steering Propelled CubeSats

The small thruster mount, roughly the size of a doughnut, controls the rotation and tilt of a directional system to a high degree of accuracy, 0.02&#0176. NASA developed the rotary tilting gimbal (RTG) for thruster directional control of CubeSats. This RTG is designed to provide precision...
Diamond Pellet Grinding Tool
available technology

Diamond Pellet Grinding Tool

The NASA Marshall invention makes use of a template fabricated via 3D printing that encapsulates diamond pellets and fits over a CNC tool head. The unique design solves the problems associated with similar, commercially available designs where other types of fixtures articulated, or gave way, too...
Rocket Nozzle Side-Load Analysis Software
available technology

Rocket Nozzle Side-Load Analysis Software

The algorithm is based on an aeroelastic modeling capability that couples the necessary structural dynamics component into an anchored computational fluid dynamics methodology. The fluid dynamics component is an unstructured-grid pressure-based computational formulation, whereas the structural...
Novel Solid-State Humidity Sensor
available technology

Novel Solid-State Humidity Sensor

NASA&#8217s novel ceramic dielectric material enables extremely highsensitivity humidity sensing. The ceramic sensing element is robust, can be manufactured using printing processes, and exhibits fast response and recovery speeds with large capacitance and resistance response/change per...
Fluid-Filled Frequency-Tunable Mass Damper
available technology

Fluid-Filled Frequency-Tunable Mass Damper

NASA MSFC&#8217s Fluid-Filled Frequency-Tunable Mass Damper (FTMD) technology implements a fluid-based mitigation system where the working mass is all or a portion of the fluid mass that is contained within the geometric configuration of either a channel, pipe, tube, duct and/or similar type...