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| Number | Title | Issue Date |
| 7488159 | Zero-clearance ultra-high-pressure gas compressor Gas compression system comprising a compression cylinder having a gas inlet, a compressed gas outlet, and one or more liquid transfer ports; a pump having a suction and a discharge; and a compressor liquid. The system also includes any of the following: a pressure i... | 02/10/2009 |
| 7329545 | Methods for sampling a liquid flow In a method for sampling a continuous liquid flow, the liquid flow is supplied to a surface along an input flow path. The liquid flow is sampled by forming a sample droplet from a portion of the liquid flow. The sample droplet is moved along an analysis flow path to... | 02/12/2008 |
| 7201557 | Rotary pressure exchanger A pressure exchanger for the transfer of pressure energy from a high pressure fluid stream to a lower pressure fluid stream wherein a generally cylindrical housing contains a rotor having a plurality of channels extending axially therethrough and a pair of end cover... | 04/10/2007 |
| 7189580 | Method of pumping fluid through a microfluidic device A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port of a predetermined radius and an output port of a predetermined radius. The channel is filled with fluid and a pressure gradient is generated between the... | 03/13/2007 |
| 7189358 | Integrated micropump analysis chip and method of making the same An integrated micropump or a plurality of integrated micropumps are communicated to a plurality of analysis chambers. A plurality of integrated analysis chambers include integrated analysis devices to test a fluid for an analyte. The micropumps continuously or perio... | 03/13/2007 |
| 7163612 | Method, apparatus and article for microfluidic control via electrowetting, for chemical, biochemical and biological assays and the like An active matrix microfluidic platform employs thin film transistor active (“TFT”) matrix liquid crystal display technology to manipulate small samples of fluid for chemical, biochemical, or biological assays without moving parts, for example, using a two-dimens... | 01/16/2007 |
| 7081189 | Microfluidic pumps and mixers driven by induced-charge electro-osmosis A microfluidic device includes one or more microchannels providing a passageway for transmitting an electrolyte fluid. A field source provides a defined field in the one or more microchannels, wherein at least one conductor element that is placed in at least one spe... | 07/25/2006 |
| 7021900 | Vapor-powered kinetic pump A kinetic pump and method of pumping a liquid comprising providing an acceleration tube for the acceleration of a liquid contained therein by an introduced high-pressure vapor or gas, receiving the liquid from the acceleration tube with a compressed-air surge tank, ... | 04/04/2006 |
| 7011508 | Micro paddle wheel pump for precise pumping, mixing, dispensing, and valving of blood and reagents An apparatus and method for making a microscopic paddle wheel coupled inductively by an external electromagnet and used for valving and active pumping so that the actual pumping mechanism is completely isolated from the electromagnetic driver. The paddle wheel is in... | 03/14/2006 |
| 6911132 | Apparatus for manipulating droplets by electrowetting-based techniques An apparatus is provided for manipulating droplets. The apparatus is a single-sided electrode design in which all conductive elements are contained on one surface on which droplets are manipulated. An additional surface can be provided parallel with the first surfac... | 06/28/2005 |
| 6655923 | Micromechanic pump A micromechanical pump has a membrane (2) positioned above a substrate (1). The substrate is provided with a cavity (8) which is formed in an endlessly continuous shape (e.g., circular) to provide a channel for a drive fluid. A cover (9) is positioned abo... | 12/02/2003 |
| 6540487 | Pressure exchanger with an anti-cavitation pressure relief system in the end covers A pressure exchanger for simultaneously reducing the pressure of a high pressure liquid and pressurizing a low pressure liquid. The pressure exchanger has a housing having a body portion; with end elements at opposite ends of the body portion. A rotor is ... | 04/01/2003 |
| 6415821 | Magnetically actuated fluid handling devices for microfluidic applications Magnetically actuated fluid handling devices using magnetic fluid to move one or more fluids (gases or liquids or both) through microsized flow channels are provided. Fluid handling devices include micropumps and microvalves. Magnetically actuated slugs o... | 07/09/2002 |
| 6408884 | Magnetically actuated fluid handling devices for microfluidic applications Magnetically actuated fluid handling devices using magnetic fluid to move one or more fluids (gases or liquids or both) through microsized flow channels are provided. Fluid handling devices include micropumps and microvalves. Magnetically actuated slugs o... | 06/25/2002 |
| 6318970 | Fluidic devices A microfluidic device operates as a pump for pumping fluid along a channel in a microchip by moving a drive fluid in the channel under the influence of a force field that is generated externally to the channel. The drive fluid is preferably a ferrofluid, ... | 11/20/2001 |
| 6234766 | Pump system A pump system suitable for pumping a hot medium, such as hot mixtures of liquid and solid substances (slurries), includes at least one displacement pump, such as a membrane pump, at least one bidirectional flow pipe, and a second pipe connected to the pum... | 05/22/2001 |
| 6193476 | 11/2 Piston force pump A deep well fluid pump which enables the pumping of fluid with much less energy which includes a power column of fluid of sufficient volume, which communicates to the under side of the lifting piston for the column of fluid to be lifted, but is isolated f... | 02/27/2001 |
| 6183206 | Magnetohydrodynamically-driven compressor A duct is provided having a flattened portion containing a liquid slug of gallium, and a magnetic field is passed through the gallium while an alternating current is also passed through the gallium to produce back and forth motion of the liquid gallium sl... | 02/06/2001 |
| 5764483 | Cooling unit for electronic equipment Heat generated at heat generating components is efficiently transported to a wall of a metal box serving as a heat dissipation section to cool the heat generating components even in an apparatus, in which box the heat generating components together with o... | 06/09/1998 |
| 5641399 | Air development system for a pool cleaning device A swimming pool cleaning system 2 is provided which provides both water suction and compressed air to a pool cleaning device. A pump 20 draws water form a swimming pool P through the pool cleaning device, an attached vacuum hose 14 and a suction line 12. ... | 06/24/1997 |
| 5616007 | Liquid spray compressor A liquid spray compressor is provided in which cooling liquid is sprayed into a vessel containing gases or vapors to be compressed, thereby displacing the gas and simultaneously absorbing a significant amount of the heat of compression.... | 04/01/1997 |
| 5310321 | Pump system A pump system includes a displacement pump whose oscillating fluid pressure variations are connected to drive a membrane pump. The membrane pump in turn oscillates fluid in a fluid-filled vertical pipe connected to a fluid-filled commuting pipe. The displ... | 05/10/1994 |
| 5205720 | Method and apparatus for producing compressed air and water pumping apparatus utilizing the produced air A method and apparatus for producing compressed air includes sealing air in a container capable of reducing its volume by external hydraulic pressure. A weight having a larger specific gravity than water is attached to the container to sink the container ... | 04/27/1993 |
| 4961688 | Process and apparatus for pumping and metering a liquid product with a melting point between 200 and 350 degrees C. The invention relates to a process and apparatus for the pumping and metering of liquid products, wherein the melting point is between 200° and 350° C. In the process, a pulsation generator with piston and diaphragm displaces a thermal fluid which actua... | 10/09/1990 |
| 4928125 | Liquid drop ejection apparatus using a magnetic fluid A liquid-drop ejection apparatus for supplying a discharged fluid to a nozzle from a storage device and utilizing a magnetic fluid for ejecting the fluid in the form of drops from a discharge opening is disclosed.... | 05/22/1990 |
| 4791688 | Jet pump macerator pump sewage handling system A jet pump macerator pump sewage handling system which provides a unique waste control system for use in mobile units such as passenger trains and ships in which multiple toilets are connected to a transfer manifold pipe which communicates with a non-clog... | 12/20/1988 |
| 4662386 | Subsea petroleum products storage system A subsea system for the storage of petroleum products or other liquids with densities lighter than water is disclosed. The system includes at least one storage tank disposed alongside a bowl-like structure. A flexible membrane sealed to a top peripheral s... | 05/05/1987 |
| 4627419 | Blood pump apparatus and method A blood pump apparatus and method for pumping blood and pressure treating blood for minimizing hemolysis, platelet degradation, microthrombus and bubble formation. A blood pump apparatus for pumping and pressure treating blood comprising a flaccid chamber... | 12/09/1986 |
| 4545731 | Method and apparatus for producing a well A system and method for producing earth formation fluids such as crude oil using a lighter oil to force the crude oil to the surface and thereafter removing the lighter oil by gas lift techniques. The well system includes spaced packers defining a product... | 10/08/1985 |
| 4534709 | Water displacement mercury pump A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a pr... | 08/13/1985 |
| 4527957 | Piston pump A piston pump has suction and pressure valves, a valve through-chamber extending between the valves, a working chamber with a piston reciprocal therein, and a force-transmitting chamber communicating with the working chamber and accommodating a force-tran... | 07/09/1985 |
| 4378183 | Apparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquid An apparatus for and method of pumping hot, erosive slurry of coal solids in a coal derived, water immiscible liquid to higher pressure involves the use of a motive fluid which is miscible with the liquid of the slurry. The apparatus includes a pump 12, a... | 03/29/1983 |
| 4347223 | Apparatus for making supply of high pressure liquid and relief of pressure of the same An apparatus for effectively making the supply of material slurry at a high pressure into a high-pressure liquefaction reaction vessel and relief of the pressure of the high-pressure product slurry to permit the discharge of the product slurry as a low-pr... | 08/31/1982 |
| 4310491 | Apparatus for supplying raw liquid and relieving pressure of high-pressure product liquid An apparatus for making the supply of a material liquid and relief of pressure of a reaction product liquid in a high-pressure liquefaction reaction such as direct liquefaction of coal. The apparatus includes at least one cylinder having two working chamb... | 01/12/1982 |
| 4258700 | Solar or waste heat-exothermic/endothermic liquid-heat sink and pump Many acids, bases and the familys of liquid chemicals which are exothermic when mixed with water, and are reversible as endothermic are usable as "heat sinks" to store solar and waste heat energy. Selection of a liquid combination of any of these which wh... | 03/31/1981 |
| 4209982 | Low temperature fluid energy conversion system A low temperature fluid energy conversion system in which at least two cylinders containing a working fluid which has been heated, for example by solar energy, are alternately supplied with a liquid expanding agent, preferably a hydrocarbon or a fluorocar... | 07/01/1980 |
| 4201049 | Turbine power plant A turbine power plant of particularly inexpensive construction and using static expansion of the combustion gas to accelerate slugs of liquid used as the motive power for a Pelton wheel. The turbine power plant comprises a fuel combustion unit producing c... | 05/06/1980 |
| 3938335 | Heat engines A de facto wall-less heat exchanger system wherein a non-volatile heated liquid from a nuclear, geothermal or other source of heat is introduced into a chamber containing a highly volatile fluid which is chemically non-reactive with the non-volatile liqui... | 02/17/1976 |
