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| Number | Title | Issue Date |
| 8142174 | Air pump set An air pump set includes an air pump, at least two air distributors and a pressure reducer. At least two air distributors are serially connected with the air pump for further distributing the pressurized air to respective air-requiring targets. The pressure reducer ... | 03/27/2012 |
| 7901193 | Pump assembly for therapeutic inflatable cell apparatus A pump assembly (200) for therapeutic inflatable cell apparatus, the assembly comprising a common pump unit (210), control means (160), and, first and second valve means (201;202), each valve means comprising a cycle control valve means, ... | 03/08/2011 |
| RE40898 | Lubricating device for a plurality of lubricating stations In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is provided w... | 09/01/2009 |
| 7409811 | Two stage vacuum valve for a vacuum packaging system A vacuum control valve includes a valve body defining a cavity, an inlet opening and a vent opening. A vacuum supply control member is movably mounted at the inlet opening, and is movable between an open position to open the inlet opening, and a closed position to c... | 08/12/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7360595 | Method and system for underground treatment of materials A method for underground treatment of subsurface materials comprises providing an injection pattern and a recovery pattern, the injection pattern and the recovery pattern located proximate to a subsurface treatment zone and at least one of the injection pattern and ... | 04/22/2008 |
| 7354190 | Two-stage mixing system, apparatus, and method A two-stage mixing system, apparatus, and method produces a solution including a first substance and a second substance in a predetermined ratio by first mixing the first substance with a first liquid to produce a first solution and then mixing the first solution wi... | 04/08/2008 |
| 7322801 | Compact linear air pump and valve package A compact air pump and valve package includes pump and valve assemblies integral with a pressure housing defining inlet ports and a plurality of fittings for connecting air lines to an interior of the pressure housing. The linear diaphragm pump assembly has a perman... | 01/29/2008 |
| 7299629 | Charge/auxiliary circuit for reducing power losses in hydrostatic systems A charge pump is provided with two independent outlets that can satisfy the pressure requirements of both a charge circuit and an auxiliary circuit. Preferably, the charge pump is a multiple roller vane pump that has at least one inlet and two outlets independent of... | 11/27/2007 |
| 7207390 | Method and system for lining multilateral wells In accordance with one embodiment of the present invention, a method for lining a lateral wellbore includes drilling a main wellbore extending from a surface to a subterranean zone, casing the main wellbore with a main casing having a plurality of lateral wellbore w... | 04/24/2007 |
| 7207780 | Multiple port dual diameter pumps A multiple port, dual diameter piston fluid dispensing pump which includes multiple input and output ports accessed by rotating at least one of the pistons and a dual or multiple diameter piston or set of pistons that cooperate so that they follow each other. The di... | 04/24/2007 |
| 7207395 | Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement A method and system for testing a partially formed well includes forming a first well bore intersecting a subterranean formation. The first well bore includes a portion of a planned well having a first configuration. A production characteristic of the subterranean f... | 04/24/2007 |
| 7195461 | Liquid chromatographic method and system To economically perform preparatory chromatography, a plurality of pumps each having a corresponding one of a plurality of pistons and a corresponding one of a plurality of cylinders are driven by one motor to draw and pump solvent simultaneously into corresponding ... | 03/27/2007 |
| 7175154 | Piston structure and liquid feeder valve Piston structure having a first side and a second side and in a recess (6) formed in an outer portion of the piston (1, 22) a resilient sealing element (5, 11, 21) is placed. The axial width and at least in some places the radial depth of the re... | 02/13/2007 |
| 7163063 | Method and system for extraction of resources from a subterranean well bore A method for stimulating production of resources from a coal seam includes forming a drainage well bore in the coal bed that has a first end coupled to a ground surface and a second end in the coal seam. The method further includes inserting a liner into the well bo... | 01/16/2007 |
| 7118349 | High pressure slurry piston pump A high pressure slurry pump is described which automatically provides a clean fluid buffer around the intake and exhaust valves of the pump and in front of the pump piston in order to displace erosive slurry material and thus extend the life of the pump and improve ... | 10/10/2006 |
| 7104613 | Pump with reciprocating high pressure seal and valve for vehicle braking systems A pump assembly with a combination reciprocating high-pressure seal and fluid inlet check valve for use within brake systems. The pump assembly comprises a housing having a bore formed therethrough and a piston disposed within the bore for reciprocal movement therei... | 09/12/2006 |
| 7100687 | Multi-purpose well bores and method for accessing a subterranean zone from the surface A well system includes at least two well bores extending from a surface to a subterranean zone. Each of the two well bores is used to form a well bore pattern for the subterranean zone that intersects the other well bore and transports fluid from the subterranean zo... | 09/05/2006 |
| 7073595 | Method and system for controlling pressure in a dual well system A method for controlling pressure of a dual well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone using a drill string. The articulated w... | 07/11/2006 |
| 7048136 | Canister lid with improved evacuation and vent assembly A canister lid includes a cover member adapted to cover a canister, thereby defining an interior of the canister. An evacuation valve is adapted to allow evacuation of the interior of the container. A vacuum release valve is adapted to allow venting of the interior ... | 05/23/2006 |
| 7048049 | Slant entry well system and method A system for accessing a subterranean zone from the surface includes an entry well bore extending down from the surface. A plurality of slanted well bores extend from the entry well bore to the subterranean zone. Drainage patterns extend from the slanted well bores ... | 05/23/2006 |
| 7036584 | Method and system for accessing a subterranean zone from a limited surface area A method and system for accessing subterranean resources from a limited surface area includes a first well bore extending from the surface to the target zone. The first well bore includes an angled portion disposed between the target zone and the surface to provide ... | 05/02/2006 |
| 7025154 | Method and system for circulating fluid in a well system A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizont... | 04/11/2006 |
| 6976533 | Method and system for accessing subterranean deposits from the surface Improved An improved method and system for accessing subterranean deposits from the surface that substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods. In particular, the present invention provides an articul... | 12/20/2005 |
| 6964298 | Method and system for accessing subterranean deposits from the surface An improved method and system for accessing subterranean deposits from the surface substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods. In particular, the present invention provides an articulated well with... | 11/15/2005 |
| 6964308 | Method of drilling lateral wellbores from a slant well without utilizing a whipstock In accordance with one embodiment of the present invention, a method for drilling a lateral wellbore from a slant well includes drilling the slant well below the surface of the earth such that the slant well is angled toward a first horizontal direction that coincid... | 11/15/2005 |
| 6945755 | Fluid controlled pumping system and method A fluid level controlled pumping system includes a pumping unit disposed within a fluid cavity. The pumping unit includes an inlet operable to receive a fluid to be pumped from the fluid cavity. The system also includes a valve slidably coupled to the pumping unit. ... | 09/20/2005 |
| 6942030 | Three-dimensional well system for accessing subterranean zones A method for accessing a plurality of subterranean zones from the surface includes forming an entry well from the surface and forming two or more exterior drainage wells from the entry well through the subterranean zones. The exterior drainage wells each extend outw... | 09/13/2005 |
| 6942637 | Rapid infusion system A rapid infusion system for the intravenous delivery of fluids at standard and rapid flow rates. The system includes a pump assembly, a drive assembly to power the pump, and a fluid containment system that keeps the infused fluid out of direct contact with the pump ... | 09/13/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6797063 | Dispensing apparatus Described are dispensing apparatuses and methods of their use, the dispensing apparatuses having one or more process chamber inside of a control chamber, and the volume of the process chamber increases or decreases by adding or removing control fluid from the contro... | 09/28/2004 |
| 6695595 | Pump for pumping at two pressures A pump includes a cylinder, a piston assembly, a first nozzle, a valve, a controller, a ring and a second nozzle. The cylinder defines first and second chambers and first and second channels for communication between the chambers. The piston assembly is r... | 02/24/2004 |
| 6533556 | Pressure balanced hydraulic pumps A hydraulic pump has a pair of inlets each with a pair of outlets. The inlets and outlets are arranged to balance the forces on the motor. The flow from the outlets of each pair may be combined to maximize flow or separated to reduce power consumption by ... | 03/18/2003 |
| 6322336 | Lubricating device for a plurality of lubricating stations In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is... | 11/27/2001 |
| 6116869 | Pumping process and system for mixing liquids The present invention is a pumping system which mixes liquids with a well-controlled proportioning and flow rate. The pumping system according to the invention comprises a liquid mixing device (MX) placed upstream from a pump (P). The liquids are taken fr... | 09/12/2000 |
| 5741710 | Reaction chamber and a method for generating a gaseous sample based on the use thereof The invention relates to a reaction chamber, which includes a cylindrical vessel, with at one end, at least one inlet or outlet tube or lead-through fitted with a valve for a liquid or gaseous component. The other end of the vessel is open. The reaction c... | 04/21/1998 |
| 5713729 | Pump having a three-way valve A pump having a three-way valve has a motor for generating a turning effect by an electric power applied thereto. The pump pressurizes a fluid by using an impeller. The three-way valve is installed to the inlet side of the pump. A magnetic plate and ball ... | 02/03/1998 |
| 5707221 | Method of plural zone pumping utilizing controlled individual pump inlet in each zone The present invention relates to a pumping method utilizing two suction inlet holes spaced a predetermined distance apart by an extension robe. In a variant, the pumping method utilizes two pump barrels cooperating each with the two inlet holes. In anothe... | 01/13/1998 |
| 5580225 | Pulsation causing check valve assembly for a plural piston pump system The fluid pump has a casing defining an inlet manifold, an outlet manifold and a plurality of piston chambers between the inlet manifold and the outlet manifold, each piston chamber having a piston therein for drawing fluid into the piston chamber from th... | 12/03/1996 |
| 5567121 | Indicator-ported discharge valves for reciprocating compressors A compressor cylinder discharge valve is adapted for monitoring of internal pressure and performance by tapping through the center bolt thereof to obtain pressure values.... | 10/22/1996 |
