Class 417/207 - BY HEATING OF PUMPED FLUID

Subclass of Class 417 - Pumps
Definition: Apparatus in which a pumping action is obtained by the direct
No. of patents: 84
Last issue date: 07/19/2011

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Number	Title	Issue Date
7980828	Microelectromechanical pump utilizing porous silicon A microelectromechanical (MEM) pump is disclosed which includes a porous silicon region sandwiched between an inlet chamber and an outlet chamber. The porous silicon region is formed in a silicon substrate and contains a number of pores extending between the inlet a...	07/19/2011
7942643	Device and method for pumping fluids employing the movement of gas bubbles in microscale The present fluid pumping method for micro-fluidic devices uses gas bubbles to move fluid by light beams. The light beams are emitted to the fluid near the gas bubble through an optically transparent cover and correspondingly heat the fluid in the micro channels. Th...	05/17/2011
7572109	Thermopneumatic capillary micropump and manufacturing method thereof According to various aspects, exemplary embodiments are provided of thermopneumatic capillary micropumps and manufacturing methods thereof. In one exemplary embodiment, a thermopneumatic capillary micropump generally includes a lower substrate having a pump-entrance...	08/11/2009
7431570	Capillary pumps for vaporization of liquids A capillary pump is provided for producing pressurized and unpressurized vapor emissions from liquid feed. In its simplest form, the capillary pump incorporates a liquid feed intake, a porous vaporization component, and a heat transfer component. Additional componen...	10/07/2008
7358621	Using sound waves and photic energy for electric power An electric power generating and gaining device using sound waves and photic energy to generate magnetism together using a crystal microphone device providing a metallic film with metallic coil leading wires to sense and receive the frequency of external sound waves...	04/15/2008
7269961	Thermodynamic cycle apparatus and method A compressor and heat pump combination has an active chamber and a passive chamber, each with its own hot plate and cold plate. The two chambers are joined along an edge by a membrane that largely transmits pressure, largely insulates against temperature transfer, a...	09/18/2007
7248791	Heater control A tank heater control that will control a heater used for heating pressurised tanks over a broad range of temperatures. The system uses a sensor for providing a signal to a processor, in which the signal is indicative of flow of gas from the tank. The processor ener...	07/24/2007
7165408	Method of operating a cryogenic liquid gas storage tank The present invention teaches methods of operating a pressurized cryogenic liquid gas storage tank that has a vent cooling shield around which fuel vented from a storage tank flows to cool the storage tank by reducing the influence of heat influx into the storage ta...	01/23/2007
7124598	Pressure testing and refrigerant recharging conduit assembly for automobiles A combination pressure measurement/charging system may include a conduit coupled to a refrigerant can. The conduit may be coupled to a low-pressure side of a refrigerant system. The system may include a valve to control a flow of fluid through the conduit. Thus, a f...	10/24/2006
7107781	Pressure testing and refrigerant recharging hose assembly for automobiles A combination pressure measurement/refrigerant charging apparatus may include a shutoff valve that includes a piercing pin and a pressure gauge. The piercing pin may be used to pierce a refrigerant can. The pressure gauge may be used as a handle for operating the sh...	09/19/2006
7096679	Transcritical vapor compression system and method of operating including refrigerant storage tank and non-variable expansion device A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a compressor, a first heat exchanger, at least one non-variable expansion device and a sec...	08/29/2006
7056098	Pump for supplying a gas to a sensor and methods therefor A pump for a gas sampling or analyzing system includes a pump body having walls impervious to the gas and an electrical coil within the body. The pump is coupled in series with a gas sensor and a gas volume containing the gas to be sampled or analyzed. By varying th...	06/06/2006
7015425	Gas cylinder warmer with variable wattage self regulating heater A gas cylinder includes a cylindrically-shaped main wall having a liner, a facing and insulation located between the liner and the facing. First and second electric, self-regulating heating elements are positioned between the liner and the insulation. The liner is p...	03/21/2006
7008193	Micropump assembly for a microgas chromatograph and the like A MEMS-fabricated microvacuum pump assembly is provided. The pump assembly is designed to operate in air and can be easily integrated into MEMS-fabricated microfluidic systems. The pump assembly includes a series of pumping cavities with electrostatically-actuated m...	03/07/2006
7008176	Molecular speed and direction selection A technique of generating a flow from a gas. The technique includes the steps of selecting molecules from the gas on a nanoscopic or microscopic scale, and generating the flow from the selected molecules. The gas can be air. In one embodiment, the molecules are sele...	03/07/2006
6959546	Method and apparatus for energy generation utilizing temperature fluctuation-induced fluid pressure differentials A method and apparatus for producing energy is provided for generating renewable energy. Captive compressed fluid cycles between two coupled containers through a motive power source. The captive compressed fluid flows between the containers in response to a differen...	11/01/2005
6938678	Arrangement for liquid cooling an electrical assembly using assisted flow An arrangement for cooling an electronic assembly includes a circuit board, an enclosure member and at least one electromechanical actuator. The circuit board has a first surface, a second surface, and at least a first heat-generating element secured to the first su...	09/06/2005
6932564	Heteroscopic turbine A heteroscopic turbine with a Knudsen number of less than ten. In one embodiment, the heteroscopic turbine generates a flow from a gas. The turbine includes at least a moving surface and a plurality of turbine blades on or in said surface. Each of the blades has a h...	08/23/2005
6923011	Multi-stage vapor compression system with intermediate pressure vessel A vapor compression system includes a first compression mechanism that compresses the working fluid from a low suction pressure to an intermediate pressure, a second compression mechanism that compresses intermediate pressure working fluid to a higher discharge pres...	08/02/2005
6915633	Shape memory alloy actuators for use with repetitive motion devices Shape memory actuators for use with repetitive motion devices are provided. The present invention includes a method of urging a working end of a repetitive motion work arm into a work surface in which the working end is positioned to repetitively move across. This m...	07/12/2005
6869273	Microelectromechanical device for controlled movement of a fluid A microelectromechanical (MEM) device for controlled movement of a fluid. The device includes a chamber having a heating element, an inlet, and a constricted egress channel. ...	03/22/2005
6767192	Vapor jet pump with ejector stage in foreline A vapor jet vacuum pump includes a housing having an inlet port and a foreline conduit, a vapor jet assembly within the housing, a vapor source for supplying a vapor to the vapor jet assembly, and at least one ejector stage. The ejector stage includes an ejector noz...	07/27/2004
6688115	High-pressure delivery system for ultra high purity liquid carbon dioxide This invention relates to an improvement in a process and apparatus for delivering ultra high purity liquid carbon dioxide to a point of use at pressures above ambient without pumping. In the process a high purity carbon dioxide feed in gaseous or liquid ...	02/10/2004
6634864	High fluid flow and pressure in a capillary pump for vaporization of liquid A capillary pump is provided for producing pressurized vapor emissions, having various layers that assist in creating optimal conditions to accomplish a high maximum fluid flow rate and pressurization. Heat and liquid/vapor flows in opposing directions in...	10/21/2003
6599098	Thermolysis reaction actuating pump A thermolysis reaction actuating pump system including a first set of walls defining a channel having a cross-sectional area less than one millimeter squared, and wherein a liquid is received in the channel. A second set of walls defining a reaction chamb...	07/29/2003
6585491	Liquid discharge apparatus having a heating element A liquid discharge head is provided having a heating member for generating thermal energy to create a bubble in liquid, a discharge port adapted to discharge the liquid, and a liquid flow path communicated with the discharge port having a bubble generatin...	07/01/2003
6533554	Thermal transpiration pump A pump comprises a first thermal guard having holes therethrough for passing a gas, a second thermal guard having holes therethrough for passing the gas, a porous thermal transpiration material disposed between the first thermal guard and the second therm...	03/18/2003
6531417	Thermally driven micro-pump buried in a silicon substrate and method for fabricating the same The present invention relates to a micro electro mechanical system (MEMS); and, more particularly, to a micro pump used in micro fluid transportation and control and a method for fabricating the same. The micro pump according to the present invention comp...	03/11/2003
6517510	Automatic patient control device The present invention relates to regulating the temperature of a desired medium that is applied to the exterior surface of a mammal. These devices have been used in the past but not with the ability to control the temperature of the desired medium in a pr...	02/11/2003
6450776	Liquid discharging head and liquid discharging method A liquid discharging head which discharges a liquid through a discharging port utilizing an energy generated by producing air bubble including side walls which are to be brought into contact with a movable member to restrict upstream growth of a bubble, t...	09/17/2002
6422826	Fluid pump and method A pump(10) for pumping various primary fluids includes a body(100) having a primary fluid channel(110) defined therein, and a primary fluid supply is coupled to the primary fluid channel to supply a primary fluid to the primary fluid channel. A mechanism(...	07/23/2002
6283718	Bubble based micropump A micro-pump pumps either electrically conductive or non-conductive liquids through channels of the micro-pump and/or micro-devices. A conductive or non-conductive liquid, depending on the specific application of the present invention, is disposed within ...	09/04/2001
6079953	Raising siphon method and apparatus A raising siphon for transferring fluids from a lower level to a higher level. The raising siphon works on the principal of increasing and/or decreasing the molecular size of fluids being transferred. Larger molecules are less dense than smaller molecules...	06/27/2000
6071081	Heat-powered liquid pump A liquid transport device has a chamber, an inlet and an outlet for supplying liquid to and from the chamber through one-way valves, and a bubble forming system for film boiling the liquid to form a precisely controlled film bubble which expands and contr...	06/06/2000
6042342	Fluid displacement system In a fluid displacement system having a pressure vessel, an expansion vessel, first and second tubes in fluid communication with the two vessels, and an energy source, fluid contained within the system is transferred from one vessel to the other by activa...	03/28/2000
5871336	Thermal transpiration driven vacuum pump A micro-machined vacuum pump is provided which may be utilized with microsensors. The pump in accordance with the present invention is preferably fabricated within a semiconductor substrate and utilizes thermal transpiration to provide compression. The pu...	02/16/1999
5827050	Jug heat pak A heating system for facilitating the transfer of gas from a portable cylinder in a safe and efficient manner....	10/27/1998
5815181	Micromachine, liquid jet recording head using such micromachine, and liquid jet recording apparatus having such liquid jet recording headmounted thereon A micromachine comprises at least one heat generating unit arranged on the surface of a substrate, a housing for retaining liquid having a liquid retaining portion along the heat generating unit, and a rotator rotatively supported in the liquid retaining ...	09/29/1998
5810564	Method and apparatus for improvement in the efficiency of evacuation and compession of fluids An apparatus and method for evacuating gas from a chamber to reduce the pressure therein utilizes a housing having a lower, downwardly facing wall and an upper, upwardly facing wall, a first gas flow director of truncated conical shape having a larger end...	09/22/1998
5725363	Micromembrane pump In a micromembrane pump with pump housing top and bottom parts and a membrane structure disposed between the housing top and bottom parts such that pump chambers, valves, flow channels and a cavity system are formed between the membrane structure and the ...	03/10/1998

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Class 417/207 - BY HEATING OF PUMPED FLUID