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7574861 |
External combustion engine
An external combustion engine formed with a plurality of heaters for improving output, provided with a container in which a working medium is sealed flowable in a liquid state, the container being...
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7536860 |
Thermo-magnetic actuator
A thermo-magnetic actuator includes a housing; a chamber within the housing; a working fluid changing phase upon heating and located in the chamber; an electrical heater disposed within the chamber...
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7481055 |
Rotary actuator
An electrothermal actuator producing linear and/or rotational movement includes a housing having a longitudinal axis. A chamber within the housing contains a working fluid that changes phase upon...
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7146814 |
Micro-machine and a method of powering a micro-machine
A rotatable micro-machine is comprised of a solvent reservoir, a porous evaporation region and a channel connecting the solvent reservoir to the evaporation region. The evaporation region may be...
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7131270 |
Apparatus and method for a heat engine
A heat engine includes a plurality of heating side expansion chambers and cooling side expansion chambers, positioned on opposite sides of an axis, for providing rotation of an apparatus about its...
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7117691 |
Device for controlling liquid level position within condenser in rankine cycle apparatus
In a liquid-level-position control device for a condenser in a Rankine cycle apparatus, first and second reference liquid level positions are set. When a position of the fluid level is lower than...
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6844054 |
Thermal management material, devices and methods therefor
The present invention provides thermal devices, materials and methods for use in transferring heat from heat sources. One embodiment comprises a thermal transfer body that has first and second end...
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6112522 |
Total flow liquid piston engine
This invention uses a body force to trap the liquid component of a fluid in local potential minimums in a continuous cavity in an expander. Shaping of the cavity traps the vapor components of the...
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6098404 |
Liquid/vapor cycle
An engine is provided including a heat exchanger capable of providing a first temperature and a second temperature, wherein the first temperature and the second temperature are different so as to...
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6080927 |
Solar concentrator for heat and electricity
A solar concentrator for producing usable power as heat and/or electricity uses a self-steering heliostat 1502 to concentrate solar radiation 1509 onto an absorbing surface such as, or including, a...
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5927071 |
Hydraulic pressure source apparatus and vehicle height control apparatus
The hydraulic pressure to be supplied to a hydraulic actuator mounted on a vehicle, such as a hydraulic cylinder for vehicle height control, is arranged to be generated by utilizing a waste heat of...
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5881801 |
Thermally driven liquid pressure generating apparatus
A vessel of a liquid pressure generating apparatus is divided into two vessels of an upper liquid pressure generating vessel containing therein a liquid chamber whose volume can be varied, and a...
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5692535 |
Icing preventer with temperature adjustment washer
Apparatus for automatically opening an orifice to allow flow when ambient temperature drops below a predetermined level, such as the freezing point of water. The apparatus is for connection to a...
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5671905 |
Electrochemical actuator and method of making same
A new and improved electrochemical actuator and method of using it enables a reversible electrochemical generation of gases for inducing a phase/volume change that can produce high actuation...
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5666810 |
Electro-thermal actuator system
An electro-thermal actuator has linear displacement of its actuator rod accurately controlled and monitored. The actuator includes a sealed chamber containing an expansible and contractible working...
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5649423 |
Micromechanism linear actuator with capillary force sealing
A class of micromachine linear actuators whose function is based on gas driven pistons in which capillary forces are used to seal the gas behind the piston. The capillary forces also increase the...
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5452580 |
Thermal energy differential power conversion apparatus
A thermal energy differential power conversion apparatus. A parallel series of vessels hold a working liquid at a level intermediate the upper and lower ends of the vessel. A first tube operatively...
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5442933 |
Refrigerator through the door ice dispenser
A through-the-door ice and cold water dispenser for domestic refrigeration units provides a housing positioned within a recess formed in the door insulation. The dispenser provides an actuation...
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5423479 |
Thermoelectric actuator for temperature control systems
A temperature control system for a building or the like having a plurality of individually-controlled temperature zones wherein temperature variations from a set temperature generate actuating...
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5396770 |
Electrothermal actuator with latch mechanism
An electrothermal actuator includes a housing containing a working fluid and a heater disposed in the fluid within the housing. A piston is slidably disposed in the housing for movement in response...
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5353596 |
Low temperature heat engine
A relatively hot and a relatively cold chamber are air evacuated and contain a low boiling point liquid. The temperature differential between the chambers results in a vapor pressure differential...
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5279123 |
Apparatus for recovery and use of waste thermal energy
Energy recovery apparatus for recovering and using thermal energy comprises multiple series of shape memory elements having decreasing transformation temperatures from one element to the next in...
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5263324 |
Rotary electrothermal actuator
An electrothermal actuator for converting electrical energy to rotational mechanical motion includes a housing, a flexible diaphragm disposed in the housing and defining a boiler chamber within the...
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5203171 |
Rotary electrothermal actuator
An electrothermal actuator for converting electrical energy to rotational mechanical motion includes a housing, a flexible diaphragm disposed in the housing and defining a boiler chamber within the...
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5193343 |
Pressure element
A pressure element can be used for generating traction forces and pressure forces. The pressure element has a first component serving as a ram and a second component having a variable length. The...
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5174118 |
Fluid pressure-responsive unit
The fluid pressure-responsive unit of the invention defines a chamber formed of a base plate, a top plate and a heat-exchange bellows sidewall joining the two plates. Relative movement of the...
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5146016 |
Filler for sensor systems of temperature-sensitive displacement pickups
2H-heptafluoropropane (HFC 227) is used as filler in sensor systems of temperature-sensitive displacement pickups.
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5142257 |
Device for the automatic reclosing of breakers and breakers equipped with such a device
Device for the automatic reclosing of breakers, taking the form of an assembly (1) comprising a movable element (3) capable, as a result of a trip of the breaker, of being moved in order to actuate...
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5040368 |
Electrothermally operated actuator and seal
An improved actuator of the type in which a piston is translatable in a piston housing in response to an expandable working fluid in fluid communication with one end of the piston. An improved...
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4887429 |
Electro-thermal actuator
An electro-thermal actuator has a boiler chamber in which a working fluid is heated to increase its pressure and a variable volume chamber defined in part by a rolling diaphragm. When the working...
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4821517 |
Actuator for producing a displacement movement on a set temperature being reached
An actuator comprises an impervious deformable bladder containing a fluid whose boiling temperature is equal to a set cut-in temperature. On reaching that temperature, the fluid within the bladder...
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4794752 |
Vapor stirling heat machine
A heat machine which employs a condensing working fluid in a Stirling type mechanical arrangement. An initial mass of working fluid is contained within a closed space. Portions of hot and cold...
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4760699 |
Thermostatic servo-motor, particularly for valves
The invention relates to a thermal servomotor which includes two operating elements which act oppositely on an actuating bridge. The operating elements are thermally insulated from each other and...
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4759189 |
Self-limiting thermal fluid displacement actuator
A self-limiting electro-thermal actuator, capable of improved response time and continuous energization operation to produce a mechanical output uses plural heaters, e.g. a resistance heater and a...
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4751821 |
Digital linear actuator
A digital linear actuator includes a plurality of digital actuator cells each connected to the next in sequential fashion. Each of the digital actuator cells contracts or expands a predetermined...
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4742678 |
Aircraft fiber optic control device
An aircraft fiber optic control device adapted for connecting to a servovalve and the like. The device providing an optical-thermal-mechanical converter for driving a servovalve powered by the...
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4740796 |
Bubble jet recording method and apparatus in which a heating element generates bubbles in multiple liquid flow paths to project droplets
Liquid droplets are formed by instantaneous state change by thermal energy of a liquid filled in a thermal chamber, said droplets being deposited onto a recording member to achieve recording.
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4662272 |
Barbecue apparatus
A barbecue apparatus for roasting food such as meat, vegetables or the like over a bed of coals, is disclosed. The apparatus is adapted to automatically turn the food from time to time, by...
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4658805 |
Thermo-hydraulic power supply
A radiant energy utilization device including an aiming detector sensing the relative angle of radiation received and outputting signals in accordance therewith to control aiming of the device or...
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4583365 |
Reticulated electrothermal fluid motor
A new electrothermal fluid motor connected to an electrically controlled energy source for uniformly heating a unique reticulated heat exchanger, which together with an expansion fluid fills a...
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4577464 |
Multiple power wheel engine
A heat engine. A plurality of body members each having a pressure chamber and a cooling chamber. A valve is mounted in each body member and adapted to connect and disconnect the pressure chamber...
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4570444 |
Solar motor means
A solar-powered motor with a wheel-like rotor having a rim separated into hollow compartments. The rotor is designed to revolve around a horizontal axis while containing a volatile liquid in some...
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4546608 |
Thermo-siphon type generator apparatus
A thermo-siphon type generator apparatus making use of a gravity-type heat pipe in which a working medium is cyclically evaporated and condensed. The apparatus has a closed vessel filled with the...
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4543788 |
Process for converting the internal energy of liquid CO.sub.2 into mechanical energy capable of producing work as it changes from liquid to gas over its critical temperature
Process and machine are disclosed for converting the internal energy of a fluid into mechanical energy capable of producing work, based on the use of the fluid having two alternative states, liquid...
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4535590 |
Thermal servo-motor, particularly for valves
The invention relates to a thermal servomotor which includes two operating elements particularly bellows boxes, which act oppositely on a valve actuating bridge. Each operating element has a...
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4509328 |
Thermo-electric responsive device
An electro-thermal actuating element. The element includes a container closed by a deformable element. The container holds a liquid and a positive thermal coefficient heating element. The heating...
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4509329 |
Gravity-actuated thermal engines
The power engine includes at least two separate fluid-tight enclosures. A solid mass is associated with each enclosure. A coupling rigidly interconnects the enclosures. A pivot shaft defines an...
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4507922 |
Thermostatic assembly
An assembly having a heat expansible fluid therein and capable of expanding and contracting in response to temperature changes between predetermined limits with a first member having a front...
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4476854 |
Gas spring solar tracker
The present invention provides apparatus for tracking the sun which reorients itself immediately in the absence of sunlight. Large and small cannisters are provided at the respective ends of a...
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4428193 |
Inert gas fuel, fuel preparation apparatus and system for extracting useful work from the fuel
An inert gas fuel consisting essentially of a precise, homogeneous mixture of helium, neon, argon, krypton and xenon. Apparatus for preparing the fuel includes a mixing chamber, tubing to allow...
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