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Patent Searching and Data


Matches 301 - 350 out of 1,945

Document Document Title
WO/2004/065544A2
A low pulsatility syringe pump including a duplex bearing set (218) rotatingly supporting a lead screw (216), and a transmission having a first drive train configured to increase a number of motor rotations required for a single rotation...  
WO/2004/059164A1
The invention relates to a dosing pump assembly (9) which is adapted to admix a liquid reducing agent to an exhaust gas flow. The dosing pump assembly comprises an assembly housing (12) that houses an electric drive (15), transmission me...  
WO/2004/051085A1
The invention concerns a hydraulic machine, in particular a hydraulic motor, comprising: a body (1), a piston (9) adapted to slide in reciprocating motion in a cylindrical housing (7) of the body, a chamber (C1, C2) being formed on eithe...  
WO/2004/048780A1
A metered quantity transfer device making it possible, by using a metering pump, to maintain a predetermined delivery flow for a long time without special adjustment. A metered quantity transfer device (10) having a metering pump (11) pl...  
WO/2004/038219A1
A system and method for calibrating fluid detects an actual fluid dispensing characteristic, such as dispensing speed, and automatically adjusts the dispensing characteristic to match an ideal dispensing characteristic. The adjustment is...  
WO/2004/035228A2
In a seal mechanism which constitutes a port switching portion in a pump mechanism of a paste ejection apparatus that ejects paste, and which prevents leakage of the paste from a seal portion between a plunger block rotating with a plung...  
WO/2004/029458A1
A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm m...  
WO/2004/029454A1
A metering pump for viscous fluids, such as cosmetics ingredients and paint colorants, is disclosed which includes a self-sealing valve member at the outlet of the pump to prevent undispensed fluid from solidifying or clogging the outlet...  
WO/2004/027390A1
When a plurality of liquids are sucked simultaneously through a plurality of suction paths connected with one pump, ending of one suction may impede other suctions. A multiple valve for connecting each suction path with the pump in one t...  
WO/2004/013386A2
The invention relates to a device and method for injecting a liquid colour into a polymer melt, for which a dosing pump with a dosing inlet and a dosing outlet is provided. The dosing inlet is connected to a tank and the dosing outlet to...  
WO/2004/009160A1
An infusion pump unit, comprising a housing of a size allowing the pump unit to be carried by a user as a portable infusion pump unit, a fluid inlet 50 for establishing fluid communication from an external infusion bag to said fluid inle...  
WO/2004/003485A1
A dispensing apparatus has a motor drive that moves an output member along an axis in a first chamber. A shuttle valve controls flow between the first chamber and either a reservoir of material to be dispensed or an output port. Extendin...  
WO/2004/001347A2
Disclosed is a metering device for creating a precisely dosed volume flow, comprising two displacing devices which are operated in phase opposition. The speeds at which the volumes of the displacing devices are displaced are adjusted suc...  
WO/2003/104134A1
The present invention is directed to liquid dispensing systems and methods for filling containers with liquid products. Each of the disclosed systems and methods includes a pump that employs an engineered bellows (10) for design stabilit...  
WO/2003/102419A1
The invention relates to a dosing device which comprises a membrane pump and an electric motor, wherein the driven shaft of the electric motor is linked with the membrane pump head of the membrane pump. The aim of the invention is to pro...  
WO/2003/101883A1
A pump (11) has a flexible liner (13) which is expanded and contracted by application of positive and negative fluid pressure for receiving and discharging fluent material. The liner is received in a rigid shell (33) which defines the ma...  
WO/2003/100252A1
A pump unit (10) for emulsifying air into an ice cream mixture comprises a first body (14) and a second body (16) provided with respective first and second cylindrical cavities (20, 22), each having longitudinal axes (20a, 22a) placed pa...  
WO/2003/099702A2
A method and apparatus (12) for dispensing a fluent material (F) such as a beverage. The fluent material is dispensed directly from a flexible bag (16, 100) to a container without any intervening structure which contacts the fluent mater...  
WO/2003/086645A1
The invention relates to a distribution pump for a fluid product with a manual action, comprising a pump body (10) and a piston (50), running in a sealed manner with said pump body (10), between a rest position and a distribution positio...  
WO/2003/079000A1
A gradient liquid feed pump system capable of liquid feed in a correct mixing ratio even in the case of liquid feed in which the mixing ratio varies. Specifically, it comprises a first plunger pump for sucking and delivering an eluate, a...  
WO/2003/078935A1
Systems and methods for hydraulically and volumetrically filling and dispensing target fluid. A hydraulic system comprises an actuator (12), a hydraulic coupler (14) that includes substantially incompressible hydraulic liquid (38), and a...  
WO/2003/062638A1
Liquid dispensing pumps of piston type have required large volumes of water or other liquid cleaning agents to achieve thorough purging when dispensing of a particular kind of liquid has been completed. A single-acting pump of this type ...  
WO/2003/054392A1
The invention relates to a dosing pump (1) comprising a working membrane defining a working area, and a pump drive (2) for creating an oscillating movement of the working membrane. The direction of the pump drive (2) can be inverted and ...  
WO/2003/040000A1
A continuous operation metering valve, based on true volumetric positive displacement technology, uses an innovative dual rack and drive pinion design that enables the valve (34) to dispense from one meter chamber (32) while the other me...  
WO/2003/035276A1
A method and a device for accurate delivery, dripping and spraying are provided. A liquid material delivering method wherein a liquid material is pressurized by a plunger sliding while closely contacting the inner wall surface of a liqui...  
WO/2003/033910A1
A pump has a flexible liner which is expanded and contracted by application of positive and negative fluid pressure for receiving and discharging fluent material. The liner is received in a rigid shell which defines the maximum volume re...  
WO/2003/010435A1
The invention relates to a dosing pump with opposing pistons (13, 13'), running in cylinders (11, 11'), connected to each other by means of a slide (14) which is displaced back and forth, by means of a drive motor (201). A switching devi...  
WO/2003/002257A2
A precision fluid dispensing system containing at least one two-piece pump (1,2) and a precision closed loop controller drive system to address the small volume precision dispensing requirements of bioscience applications. A multiple dia...  
WO/2003/001059A1
The invention relates to a liquid dispensing device comprising at least one pis-ton pump (7), which sucks liquid to be dispensed from a container in a filling cycle and applies said liquid to a target in an emptying cycle and which is dr...  
WO/2002/103202A1
To deliver a liquid at high speed and with high accuracy. A device for delivering a fixed quantity of liquid, comprising a pump section for metering the delivered liquid to provide a desired amount consisting of a plunger chamber formed ...  
WO/2002/088755A1
The delivery of sample liquids ensues, particularly in high rate screening, via automated dosing devices. An outgassing of the sample liquid located in the dosing device as well as a crystallization can occur between separate dosing oper...  
WO/2002/052154A1
The invention relates to a dosing device for conveying small amounts of substances from a reservoir (3) in an application chamber (2) via a micromembrane pump (4) which can be used particularly for conveying small doses of gas (aromas). ...  
WO/2002/047826A1
The invention concerns an electronic micro-pump provided with a cylindrical body (1) containing a metering chamber (10) delimited by a piston (2) and communicating with a reservoir via a supply orifice (10a) equipped with an intake valve...  
WO/2002/044690A2
An apparatus for the control of fluid flow through a valve. A single shaft-mounted cam moves translationally along the length of the shaft, stopping sequentially at positions adjacent to and in operative engagement with an actuator dispo...  
WO/2002/034413A1
The invention concerns a fluid product dispensing pump comprising a pump body (10) including a pump chamber (11) delimited between a high piston (20) and a low piston (30), said pistons 820, 30) sealingly sliding in said pump body (10), ...  
WO/2002/031357A2
A fluid-moving device with an integrated valve is disclosed. The device includes a housing (1) defining a suction chamber (2) and at least one internal passage-way (3) formed inside the housing (1). A first end (4) of the internal passag...  
WO/2002/030683A1
A paint toning machine comprising a container (11, 12) for storing each paint to be fed, such as toning paste or paint, a piston pump (3, 4) arranged in flow communication with the paint in the container for feeding the paint, and drivin...  
WO/2002/031358A1
A dispenser for a fluid medium, the dispenser comprising a first medium container (8) and a first servomotor-operated (2) piston pump (3) communicating therewith. According to the invention, it also comprises a second medium container (9...  
WO/2002/008601A2
The invention relates to a dosing pump with a synchronous motor with a mechanical gear for reducing the motor drive and converting the rotation movement of the motor into a reciprocating movement to drive a membrane pump. An electronic c...  
WO/2002/005940A1
It comprises a chamber (1) with two main sections (1a, 1b) of different diameter inside wich moves a primary piston (3) with zones (3a, 3b) of different diameter, with the piston body (3) being traversed by a slide (17), provided moreove...  
WO/2002/004811A2
The invention relates to a method for controlling the electric motor of a metering pump, wherein the amount of fluid (V¿soll?) to be delivered is determined by an external impulse generator, every impulse (t) being associated with a pre...  
WO/2002/004810A2
The invention relates to a method for controlling the electric motor of a dosing pump wherein the amount of liquid (V¿soll?) to be transported is predetermined by an external pulse transmitter. Each pulse ($m(N)) is allocated a preset a...  
WO/2002/002938A1
The invention concerns a device for varying the dosage of an additive (A) in a main flow (P) of liquid, the proportioning being provided by a pump (1) driven by the main flow, the pump comprising a first intake (2) for the main flow, a s...  
WO/2001/083005A1
An ambulatory infusion pump (10) has a syringe barrel (16) having a fluid chamber (19) and an inner wall (22). The pump (10) further has an infusion engine (14) for moving fluid through the syringe barrel (16). The infusion engine (14) h...  
WO/2001/079693A2
A metering pump includes an apparatus for adjusting the stroke length of a pump element. The apparatus comprises a lever having a cam which is contacted by the pump element.  
WO/2001/066944A1
The invention relates to a pump (10) with a proportional-volumetrical dosing unit for conveying a predetermined volume of a liquid in a range of less than about 1 ml in a precisely dosed manner. The pump is provided with a cavity (22) fo...  
WO/2001/066943A1
A liquid chemical metering pump (24) is described that can be fully submerged within a hazardous liquid chemical transport/storage container (28). The pump (24) includes a discharge adaptor (30) that can be received in the outlet apertur...  
WO/2001/043798A1
A pump used to infuse a fluid into a patient is controlled in accordance with an algorithm that enables a microprocessor (17) to monitor and adjust each pump cycle to compensate for a differential pressure between the pump's inlet and ou...  
WO/2001/040646A2
A system for dispensing and filtering fluid is disclosed, in which the fluid flow path is substantially vertical from the fluid inlet (12) through fluid dispense (168). Substantially all wetted surfaces are of a non-contaminating materia...  
WO/2001/033133A1
Arrangement in a lubricant pump (1) comprising a housing (6) equipped with outlets (9) and lubricant chamber (2). An electrical arrangement (19) is adapted to drive an axially displaceable piston (12) in an axial cylindrical bore in the ...  

Matches 301 - 350 out of 1,945