Other

USA As Represented by Secretary of the Navy

University of Delaware

Sandia Corporation

Flodesign Wind Turbine Corporation

Engineering and Sales Associates Inc.

James V Masi

Allen M Barnett

David S Dixon

Robert B Hall

Robert O Sanchez

Shelton Gunewardena

Thomas J Kennedy, Iii

Stanley J Kowalski, Iii

Stephen P Scuderi

Carmelo J Scuderi

Anthony W Catalano

Emik A Avakian

Vikram L Dalal

T W Russell

Robert Zincone

Bill N Baron

John D Meakin

Michael D Obara

Walter M Prez, Jr

William G Bradley

Carmelo J Schuderi

A mixer-ejector wind turbine uses an ultracapacitor system to store power from the variable generation of power by a permanent magnet generator. The system takes advantage of the MEWT area ratio, the higher velocity at the outer radius of the turbine, and the ability of the ultracapacitor system to store almost all of the input charge.

Ultracapacitor interface in wind turbine and ring generator

An electrical component in the form of an inductor or transformer is disclosed which includes one or more coils and a magnetic polymer material located near the coils or supporting the coils to provide an electromagnetic interaction therewith. The magnetic polymer material is preferably a cured magnetic epoxy which includes a mercaptan derivative having a ferromagnetic atom chemically bonded therein. The ferromagnetic atom can be either a transition metal or rare-earth atom.

High frequency transformers and high Q factor inductors formed using epoxy-based magnetic polymer materials

An traffic light capable of utilizing both natural sunlight and artificial light for illuminating selective traffic signals. Natural light is directed to a natural light router or switch and to a color switch for providing a red, amber or yellow, and a green light for each bank of traffic light signals. A controller is coupled to the natural light router and light emitting diodes for controlling the mode of operation for operating the traffic light with either electrically powered light emitting diodes or with natural light collected by the natural light collector. A sensor detects the adequacy of the natural light, and when insufficient, causes the controller to power an LED signal light. The natural light may either be amplitude modulated or time modulated so as to provide a desired high illumination output to the desired signal light. The power consumption is greatly reduced, as well as providing a more reliable traffic light substantially independent of power line interruptions or fluctuations. Any information, not only traffic signals, may be displayed.

Self contained and powered traffic signal using natural and artificial light

A four stroke engine including a crankshaft. A power piston within a first cylinder connected to the crankshaft such that the power piston reciprocates through a power stroke and an exhaust stroke. A compression piston within a second cylinder is connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke. A gas passage interconnects the first and second cylinders and includes an inlet valve and an outlet valve defining a pressure chamber therebetween. An inlet manifold is in fluid communication with an inlet valve of the second cylinder. A bypass valve is in fluid communication with the second cylinder and the inlet manifold, wherein during a compression stroke the bypass valve allows a portion of the air to bypass the inlet valve and exhaust into the inlet manifold to provide a variable compression ratio.

Split four stroke engine

A compressor/motor combination device for use in refrigerant recovery and/or recycling apparatus wherein the motor employed is of the disc armature type and the drive shaft thereof also acts as the crank shaft of the compressor for reciprocating the piston therein and extends in a direction opposite the compressor to drive a fan.

Refrigerant compressor and motor

A method of improving the electromagnetic (EM) shielding performance of a mposite material is provided. The composite material has conductive and semi-conductive filler particles suspended in a non-conductive resin. The filler particles can be up to 40 weight percent of the composite material. The composite material is electroplated with a conductive material onto a portion of its surface to improve the electrical connection between the conductive material and a portion of the filler particles. EM shielding performance can be further enhanced by injecting an exponentially decaying electromagnetic pulse through the composite material that has been electroplated.

Method for improving electromagnetic shielding performance of composite

Apparatus which enables a foldable wheelchair to be retrofitted with an electrical propulsion system without significantly compromising the ability to fold the chair. The apparatus includes a drive unit for each wheel to be driven. The drive units can be mounted on the stationary axles of the driven wheels and apply torque, generated by a separate motor in each drive unit, to the wheels at a plurality of symmetrically located points which are radially displaced from the axles.

Method of and apparatus for motorizing manually powered vehicles

A method of forming a composite material for EMI/EMP hardening protection at has a predictable EM shielding performance in terms of penetration depth is provided. A base material is doped with a predetermined volume fraction of filler particles such that the base material forms a separating contact region between each pair of adjacent filler particles. An electrical equivalent circuit for a filler particle pair and separating contact region is used to represent electrical properties associated with the filler particle pair and separating contact region. A network equivalent impedance of the base material doped with the filler particles is generated using the electrical equivalent circuit. The network equivalent impedance, dielectric constants of the base material and the filler particles, and the predetermined volume fraction of filler particles are used to predict the EM shielding performance of the base material doped with the filler particles in terms of penetration depth.

Method for providing EMI/EMP hardening and breakdown protection in

Composite material composed of conducting and semi-conducting oxide partis, fibers, or flakes suspended in a of polymeric material matrix for use in connectors, junction boxes, enclosures or similar electromagnetic shielding applications. The use of a composite material with electromagnetic shielding properties built into the material itself, combined with the use of a semi-conductive filler that minimizes the corrosive effect of an electrochemical potential difference, provides EM shielding and corrosion resistance for these materials when they are used in marine and aircraft environments. Oxide semiconductor materials and compatible conductive fillers also provides a basis for a new class of EMI and EMP composite materials that exhibit a stable current-controlled and voltage-controlled negative resistance (VCNR, CCNR) characteristic. Testing has shown that the conductivities of these materials increase as the field and/or the voltage increases. This characteristic is desirable, providing inherent protection of electronic circuits from voltages or currents. This VCNR/CCNR effect is dependent upon the voltages, the degree of filler material combinations and the filler loading which will determine the composite materials properties.

Composite material for EMI/EMP hardening protection in marine

A photovoltaic cell having a zinc phosphide absorber. The zinc phosphide can be a single or multiple crystal slice or a thin polycrystalline film. The cell can be a Schottky barrier, heterojunction or homojunction device. Methods for synthesizing and crystallizing zinc phosphide are disclosed as well as a method for forming thin films.

Photovoltaic cells employing zinc phosphide

A technique for manufacturing durable, reliable solar cells by a continuous process suitable for large-scale manufacture involves, in substance, providing a reel of thin metal foil substrate and forming on the substrate a series of layers operative to form a photovoltaic junction, short prevention blocking layers, contacts and integral encapsulation. The foil substrate is processed as a continuous reel substantially until final testing at which point, if desired, it can be cut into individual cells for deployment. In comparison with a batch process, the continuous technique can reduce manufacturing cost by as much as a factor of two.

Method for the continuous manufacture of thin film solar cells

A solar cell having a copper-bearing absorber is provided with a composite transparent encapsulating layer specifically designed to prevent oxidation of the copper sulfide. In a preferred embodiment, the absorber is a layer of copper sulfide and the composite layer comprises a thin layer of copper oxide formed on the copper sulfide and a layer of encapsulating glass formed on the oxide. It is anticipated that such devices, when exposed to normal operating conditions of various terrestrial applications, can be maintained at energy conversion efficiencies greater than one-half the original conversion efficiency for periods as long as thirty years.

Growing community of inventors

Wilbraham, MA, United States of America

James V Masi