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| Number | Title | Issue Date |
| 8100672 | Autonomous electrochemical actuation of microfluidic circuits A microfluidic structure with an electrically controlled pressure source is shown. The pressure source is an electrolyte connected with electrodes. Dissociation of the electrolyte generates the pressure, which is used to obtain a valve-like or pump-like behavior ins... | 01/24/2012 |
| 8070463 | Rotary reciprocating intensified hydraulic actuator This invention relates generally to a pneumatic, hydraulic or other media driver, rotating-reciprocating cylinder apparatus to be mounted on the proximal end of CNC lathe spindles, vertical or inverted machining centers, hydraulic machining work cells or rotary tran... | 12/06/2011 |
| 7959417 | Hydraulic engine The hydraulic engine includes first and second reaction chambers, the first and second reaction chambers each having an enclosure within which is disposed a floating piston. An impulse turbine is in fluid communication with the first and second reaction chambers. A ... | 06/14/2011 |
| 7284966 | Micro-pump A micro-pump having a first layer, a second layer and an intermediate flexible layer is disclosed. The first layer and second layer may be of moldable plastics. The intermediate layer may be a substantially flat PDMS membrane layer having an inlet hole and an outlet... | 10/23/2007 |
| 7235400 | Laminated microarray interface device A device for forming a low volume reaction chamber on a substrate such as a microarray slide and its method of use is disclosed. The reaction chamber forming device has an adhesive laminate design that permits it to be manufactured as a disposable device. A preferre... | 06/26/2007 |
| 7223363 | Method and system for microfluidic interfacing to arrays A method and system for providing a fluidic interface to slides bearing microarrays of biomolecules or other samples immobilized thereon to perform a variety of chemical reactions or processing steps on the slide. An interface device seals against the slide to form ... | 05/29/2007 |
| 7185493 | Solar energy power plant and method of producing electricity A power plant that uses a lens to focus solar energy onto a closed system loop is disclosed wherein a closed loop system is provided having a chamber that converts a liquid into a gas by absorbing heat. The heat being created has been generated by the focused solar ... | 03/06/2007 |
| 7182069 | High pressure fuel accumulator A high-pressure fuel accumulator (1), in particular for a common rail injection system, has a housing (2) in which a pressure chamber (3) is inserted, and at least one inlet and at least one outlet. The pressure chamber is implemented as a throu... | 02/27/2007 |
| 7143586 | Thermoacoustic device A thermocoustic device includes a housing with a thermal core supported in the housing and having a first and a second surface. The thermal core includes a first heat exchanger defining the first surface of the thermal core and a second heat exchanger defining the s... | 12/05/2006 |
| 7069717 | Hybrid propulsion system Disclosed is a propulsion system for a spacecraft. The propulsion system includes a supply of oxidizer and at least one nozzle. A conduit fluidly couples the supply of oxidizer and the nozzle. The conduit provides a pathway for oxidizer to flow in a downstream direc... | 07/04/2006 |
| 7029245 | Blood pumping unit, with a coplanar disk inlet valve and an annular outlet valve A unit for pumping fluid, particularly blood, is provided with an enclosure that has two half-shells and an elastic membrane fixed perimetrically to the enclosure in order to divide its space into two parts. One of the half-shells is provided with valves that are lo... | 04/18/2006 |
| 7028473 | Hot-gas engine The hot-gas engine comprises a cylinder, a working piston which together with a cylinder cover delimits a cylinder space designed to accommodate a working medium, a displacement piston which divides the cylinder space into a first and a second working space, as well... | 04/18/2006 |
| 7003838 | Hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member This invention relates to a hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member. The system further comprises two directional control valves which can be selectively repositioned to cause hydrau... | 02/28/2006 |
| 7003964 | Heat pump system A heat pump system (10) including a heat generator (15), a heat engine (26) supplied with heat engine working fluid (18) by the heat generator (15) having a heat engine cylinder chamber (34), a heat engine piston (32)... | 02/28/2006 |
| 6977036 | Method and apparatus for substrate polishing A method and apparatus are provided for polishing a substrate surface. In one aspect, an apparatus for polishing a substrate includes a conductive polishing pad and an electrode having a membrane disposed therebetween. The membrane is orientated relative the conduct... | 12/20/2005 |
| 6968688 | Two-cycle hot-gas engine A two-cycle hot-gas engine comprising an expansion piston in a heatable cylinder member and a compression piston in a coolable cylinder member. The expansion piston and the compression piston are disposed along a common axis. ... | 11/29/2005 |
| 6948918 | Membrane pump with stretchable pump membrane The invention relates to membrane pumps for delivering liquids. More specifically, a pump is provided having a pump housing with a pump cavity formed between first and second wall portions thereof, and an pump membrane pump membrane having first and second membrane ... | 09/27/2005 |
| 6921253 | Dual chamber micropump having checkvalves A micropump has two chambers separated by an actuator for causing fluid to flow in the chambers. Each chamber is equipped with a ball that acts as a valve for allowing flow in a desired direction. The balls are heavier than the fluid being pumped, and reside at an i... | 07/26/2005 |
| 6899282 | Injection spraying system An injection spraying system for mixing additives in controlled amounts to water for spraying, which improves handling and calibrating of the concentration of the mixture. The system includes a water tank, mixing globe, pump device, unloader chamber and a worm reduc... | 05/31/2005 |
| 6846166 | Reciprocating diaphragm pump with degassing valves In a reciprocating pump, drive power of a drive-power supply member is transmitted to a diaphragm within a diaphragm drive chamber via operating fluid. An operating-fluid-flow regulation chamber for regulating the flow of operating fluid is located between the drive... | 01/25/2005 |
| 6793462 | Fluidic pump A fluidic pump (108) comprises an electrolyte cavity (110) and a pump outlet (115) fluidically coupled to the electrolyte cavity that are within at least a portion of a fluid guiding structure (105), two electrodes (112, 113) exten... | 09/21/2004 |
| 6793467 | Thick matter pump The present invention relates to a thick matter pump comprising at least two pump units alternating in the pump and suction mode, a delivery line, a suction line and a switching valve for switching between the pump units, one pump unit being connected in the pump mo... | 09/21/2004 |
| 6739131 | Combustion-driven hydroelectric generating system with closed loop control A combustion-driven hydroelectric generating system has one or more combustion cylinders that contain a liquid (such as water) and receive a combustible fuel/oxidizer mixture that is ignited and the explosive force of the combustion acts on the surface of the liquid... | 05/25/2004 |
| 6699021 | Passively pumped liquid feed fuel cell system A direct methanol fuel cell (DMFC) system is provided with a pump for pumping methanol into the cell. The pump is driven by carbon dioxide produced by the electro-chemical reaction at the anode of the fuel cell. Because the amount of CO2 genera... | 03/02/2004 |
| 6585495 | Reversible volume oil impeller pump with mechanical governor A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The f... | 07/01/2003 |
| 6568922 | Pump cylinder and method of collecting pasty materials, liquids, gases and/or mobile objects A pump cylinder in which a pump plunger is guided which divides the cylinder into a forward and a rearward subspace, which, in the forward subspace, has a connection for taking in the fluid medium to be delivered, the rearward subspace of the pump cylinde... | 05/27/2003 |
| 6520753 | Planar micropump A micropump including a chamber plate with connected pumping chambers for accepting small volumes of a fluid and a pumping structure. The pumping structure includes a flexible membrane, portions of which may be inflated into associated pumping chambers to... | 02/18/2003 |
| 6321561 | Electrochemical refrigeration system and method A refrigeration system has a compressor, a condenser, and an evaporator connected in a loop to provide a refrigeration cycle designed for small heat loads of less than one kilowatt. The compressor has a first refrigerant compressor section connected in th... | 11/27/2001 |
| 6283727 | Metering pump The compact, easily useable metering pump results from a structure including a housing (20) with a pumping chamber (34) within the housing (20). A diaphragm (36) is located in the pumping chamber (34). An inlet includes a check valve (50) for allowing flu... | 09/04/2001 |
| 6283440 | Apparatus and method for regulating fluid flow with a micro-electro mechanical block A Micro-Electro Mechanical device includes a movable mechanical structure and a bias mechanism. A bubble confinement region is defined by at least a portion of the movable mechanical structure. A bubble generation mechanism produces a bubble within the bu... | 09/04/2001 |
| 6244833 | Device to increase slurry density Disclosed is a device and method to increase density of slurry transported by slurry pumping systems. A connection is made to the existing slurry pipeline so that a portion of slurry is drawn into the device. Multiple settling chambers are filled and pres... | 06/12/2001 |
| 6182615 | Combustion-driven hydroelectric generating system A combustion-driven hydroelectric generating system has one or more combustion cylinders that contain a liquid (such as water) and receive a combustible fuel/oxidizer mixture that is ignited and the explosive force of the combustion acts on the surface of... | 02/06/2001 |
| 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 define a temperature differential. A component of the engin... | 08/08/2000 |
| 6010317 | Electrochemical cell module having an inner and an outer shell with a nested arrangement An electrochemical cell module has an outer shell of conductive material defining a cavity, an electrolytic membrane located in the cavity, first and second pervious electrodes located on opposite sides of the membrane, and a seal member located between t... | 01/04/2000 |
| 5971722 | Electrochemical syringe pump having a sealed storage reservoir for a charge transfer medium An electrochemically driven syringe pump for infusion of medicament wherein the pump has a detachable barrel in which medicament can be stored and subsequently infused. The pump is further adapted for storage as the charge transfer medium is sealed in a r... | 10/26/1999 |
| 5842839 | Liquid supply system A liquid transfer system for liquids that are subject to solidification uses a pipeline, with compressed gas as the liquid displacement medium. The pipeline comprises a substantially rigid outer line and a flexible inner hose, forming with the outer line ... | 12/01/1998 |
| 5704520 | Liquid material dispenser and valve A liquid material dispenser, for use, for example, in dispensing liquid medicine over an extended period of time, which includes a housing (10) enclosing a reservoir (12) for storing the liquid to be dispensed and having an outlet (14) through which the l... | 01/06/1998 |
| 5626467 | Modular pump A modular air-driven pump includes an air motor and various sized fluid pumps which are interchangeably mountable to the air motor. The air motor includes first and second bulkheads, a motor cylinder held between the first and second bulkheads, and a moto... | 05/06/1997 |
| 5490766 | Precision small displacement fluid pump A fluid pump for displacing a small, precise volume of fluid for each pump stroke, particularly where the fluid to be displaced is a liquid containing dissolved gas. The precise volume of fluid to be displaced is adjustable to any selected amount up to th... | 02/13/1996 |
| 5383334 | Compressor integral with stirling engine A compressor integral with a Stirling engine having a pressure space comprises a housing, a partition wall provided in the housing, a first pressure chamber defined in the housing at one side of the partition wall and connected with the pressure space of ... | 01/24/1995 |
