Matches 101 - 150 out of 535 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5945767 Electrical device and method of making electrical device, and method of converting energy  
A device that allows limited flow of free electrons between the plates of a converter is disclosed. The converter converts constant temperature ambient heat into electrical energy which is...
5942834 Thermionic electric converters  
An improved thermionic electric converter uses a wire grid cathode to provide a larger surface area for electrons to boil off. Alternately or additionally, the larger electron emission surface area...
5918263 Microcantilever detector for explosives  
Methods and apparatus for detecting the presence of explosives by analyzing a vapor sample from the suspect vicinity utilize at least one microcantilever. Explosive gas molecules which have been...
5909078 Thermal arched beam microelectromechanical actuators  
Microelectromechanical actuators include at least one arched beam which extends between spaced apart supports on a microelectronic substrate. The arched beams are arched in a predetermined...
5907202 Thermo-sensitive actuator and idle speed controller employing the same  
A thermo-sensitive actuator capable of operating without the need of providing a temperature detector as a separate member. The actuator includes a stator made of a magnetic material to form a...
5770911 Resonant thermoelectric generator  
A resonant thermoelectric generator includes a thermoelectric power converter connected in series with a resonant circuit. A current generated by the thermoelectric power converter is cycled back...
5763979 Actuation system for the control of multiple shape memory alloy elements  
An actuation system for the control of multiple shape memory alloy elements is achieved by arranging the shape memory actuators into a matrix comprised of rows and columns which results in...
5747915 Bent shaft motor  
A nonelectromagnetic motor comprising a base, a bent shaft which is rotable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion...
5734122 Thermoelectric energy conversion apparatus  
Apparatus is disclosed in which a pair of elongated solid cylindrical metal conductors mounted with their central axes mutually parallel are connected at their ends to form a closed electrical...
5714829 Electromagnetic heat engines and method for cooling a system having predictable bursts of heat dissipation  
Magnetic heat engines directly converting heat to electricity, using emf induced by demagnetization. Generated power manifests as negative resistance, and almost any kind and shape of magnetic...
5705770 Thermoelectric module and method of controlling a thermoelectric module  
A thermoelectric module includes a switching circuit for switching the connection between a first thermoelectric element and a second thermoelectric element between series connection and parallel...
5644185 Multi stage thermoelectric power generation using an ammonia absorption refrigeration cycle and thermoelectric elements at numerous locations in the cycle  
A thermoelectric generator system including a refrigerator of the of the absorption type having no moving parts and operating with ammonia, water and hydrogen to extract heat from a heat source and...
5644184 Piezo-pyroelectric energy converter and method  
The present invention embodies a piezo-pyroelectric energy converter and is directed to a method and apparatus for conversion of thermal energy to electrical energy and refrigeration. The present...
5637946 Thermally energized electrical power source  
An electrical device functions as a thermally energized DC power source. The device has a base plate of conductive metal. A number of electrode points protrude upward from the base plate,...
5625245 Thermoelectric generator for motor vehicle  
A thermoelectric generator for producing electric power for a motor vehicle from the heat of the exhaust gasses produced by the engine of the motor vehicle. The exhaust gasses pass through a finned...
5608181 Electric power generating element  
In an electric power generating element, either positive or negative electrode includes a composition containing an organic compound as a main agent and the positive electrode has an electrically...
5602386 Optically powered remote micro devices employing fiber optics  
Optical energy, generated by a laser or laser diode source, is coupled into an optical fiber having core dimensions typically ranging from 5 to 200 micrometers. Overall outside dimensions of such...
5597976 Thermoelectric generator and magnetic energy storage unit with controllable electric output  
The invention encompasses a torus formed by heated and cooled junctions of dissimilar metals such as copper and nickel to generate a low voltage current and form an electrical path of greatly...
5578886 Collector for thermionic energy converter covered with carbon like material and having a low electronic work function  
Collector for thermionic energy converter of a new type with low electronic work function. A thermionic energy converter includes an emitter and a collector and a space provided therebetween to...
5563368 Thermoelectric power generating device  
A thermoelectric conversion member formed by a thermoelectric conversion element has a split ring shaped transverse cross section. Electrodes are disposed on ring ends of the thermoelectric...
5554819 Method and apparatus for the thermoelectric generation of electricity  
A thermoelectric generator includes a plurality of thermoelectric junctions embedded in each of a pair of thermally conductive and electrically non-conductive layers, these layers being separated...
5543678 Flat motors  
A flat motor. The flat motor comprises a substrate, a cantilevered, resilient lever arm mounted, by a passive end, on the substrate; and a shape-memory transducer acting on the lever arm wherein...
5541464 Thermionic generator  
A thermionic generator (10) has a heated metal heat tube (11) journaled through a set of star-shaped emitters (12) and a set of electrically insulative spacers (13). The generator also has a...
5517468 Electronic timepiece with thermoelectric element  
In an electric timepiece using a small and thin thermoelectric element wherein a first insulator made of silicon is on the heat absorbing side and a second insulator made of silicon is on the heat...
5492570 Hybrid thermal electric generator  
The apparatus is a combined Alkali Metal Thermal to Electric Converter (AMTEC) and a thermionic energy converter which are mated by the use of a common heat transfer device which can be a heat...
5459367 Collector element for thermionic electric converters  
A collector element for a thermionic electric converter that reduces electron scatter and improves conversion efficiency is provided. The collector element includes an outer casing and a highly...
5450869 Heater mechanism including a light compact thermoelectric converter  
A heater mechanism incorporating a thermoelectric converter for use with a self-powered, solid, liquid or gaseous fueled, heater. During operation of the heater mechanism the thermoelectric...
5327038 Walking expansion actuator  
This invention is for an object moving actuator composed of a stack of independently controllable layers which convert thermal exobaric pulses into mechanical motion. Each layer can be a lifter for...
5309056 Entropic electrothermal actuator with walking feet  
The entropic echinoid 2 applies force to an object 6 with the cummulative effect of myriad feet 8 activated by fluid expansion pulses from electrical resistance heaters 30. Each heater lying in a...
5122699 Low temperature field producer  
A process for the formation of a force field comprising cooling at least one crystal selected from potassium tartrate, cesium nitrate, rubidium nitrate, tartaric acid, cadmium nitrate and thorium...
5107161 Low temperature force field producer  
A process for the formation of a force field comprising cooling at least one crystal selected from potassium tartrate, cesium nitrate, rubidium nitrate, tartaric acid, cadmium nitrate and thorium...
5065085 Thermoelectric energy conversion  
A thermoelectric energy converter incorporates thermocouples in a circuit carrying A. C. current via capacitors which provide electrical coupling but obstruct heat transfer between hot and cold...
5028835 Thermionic energy production  
A thermionic energy converter comprises an emitter, a transparent collector support generally parallel to an emitting surface of the emitter, a conductive film collector from about 10 to about...
4973874 Electrical generation from low-temperature heat sources and flux pump  
A method and flux pump for inducing electrical energy from superconducting and ferromagnetic material comprising initially magnetizing said ferromagnetic material, and applying heat to raise the...
4877988 Piezoelectric and pyroelectric polymers  
Disclosed are new piezoelectric/pyroelectric materials of polarized homopolymer and copolymers of trifluorovinyl acetate. Also disclosed is a unique predictive relationship for determining the...
4843273 Heater mechanism with thermoelectric power generator  
A heater mechanism that includes a combustion chamber that is heated by open flames of a combustion gas generated from solid, liquid, or gaseous fuel, with heat being transferred from the...
4814908 Thermo servo for track centering on a disk  
An apparatus and method for positioning a transducer over the center of a track is disclosed. An arm carries the transducer. Embedded in the arm is a heating element. The heating element is...
4772816 Energy conversion system  
The apparatus uses a magnetic field (80) to accelerate a charged particle radially towards a target electrode (10). The increased kinetic energy of the particles enables the particle to give up...
4771201 Method and apparatus for thermionic energy conversion  
A thermionic energy conversion method and apparatus is disclosed that eliminates or substantially reduces deficiencies caused by space charge or thermal radiation losses from the emitter to the...
4770845 Self-actuating reactor shutdown system  
A control system for the automatic or self-actuated shutdown or "scram" of a nuclear reactor. The system is capable of initiating scram insertion by a signal from the plant protection system or by...
4767953 Electrode device for electromagnetic fluid flow apparatus  
An electrode device for an electromagnetic fluid flow apparatus, comprising a pair of electrodes which face a pathway of an electrical conductive fluid, and a magnet which faces the pathway and...
4747998 Thermally actuated thermionic switch  
A thermally actuated thermionic switch which responds to an increase of temperature by changing from a high impedance to a low impedance at a predictable temperature set point. The switch has a...
4730137 Energy conversion system  
Motion generating apparatus comprising: (a) first and second structures which are relatively rotatable, (b) magnetic material associated with one of said structures and characterized as...
4700099 Stored energy thermionics modular power system  
An integrated high power modular thermionic power system is described which comprises a heat source including a generally cylindrically shaped chemical reaction chamber enclosing a first chemical...
4667126 Thermionic converter  
A thermionic converter (10) is set forth which includes an envelope (12) having an electron collector structure (22) attached adjacent to a wall (16). An electron emitter structure (24) is...
4665334 Rotary stepping device with memory metal actuator  
A rotary stepping device includes a rotatable shaft which is driven by means of a coiled spring clutch which is alternately tightened to grip and rotate the shaft and released to return it to a...
4658171 Engine for conversion of thermal radiation to direct current  
The present invention is directed to an engine and method for converting heat energy to electrical current. The engine includes a heat source with a heat exchanger. Dipole antennas receive heat...
4653443 Thermoelectric generating composite functioning apparatus  
A thermoelectric generating composite functioning apparatus used as a glow plug in a diesel engine has sintered semiconductor elements respectively formed in the shape of a bar of N-type and P-type...
4648991 Pyroelectric crystals with high figures of merit  
Pyroelectric crystals having relatively high figures of merit (p/K) of the order of 1.8 or more are provided. They are preferably prepared by doping alanine substituted triglycine sulfate crystals...
4634343 Apparatus for converting radiant energy such as light or heat directly into turning force  
An apparatus for converting radiant energy directly into a turning force includes a rotor, a stator, a photoelectric converters on one of the rotor and stator for convering a radiant energy such as...
Matches 101 - 150 out of 535 < 1 2 3 4 5 6 7 8 9 10 11 >