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Patent Searching and Data


Matches 301 - 350 out of 2,523

Document Document Title
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...  
WO2003002257A3
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...  
WO2002044690A3
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/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...  
WO2002031357A3
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/2002/052154A1
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). ...  
WO2001079693A3
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/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...  
WO2002008601A3
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...  
WO2002004811A3
The invention relates to a method for controlling the electric motor of a metering pump, wherein the amount of fluid (Vsoll) to be delivered is determined by an external impulse generator, every impulse (t) being associated with a predet...  
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...  
WO2001040646A3
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/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...  
WO2001030421A3
A piston comprises a first member (1404) and a second member (1201). The first member (1404) has an external proximate side and an external distal side. The external proximate side is adapted to contact the fluid and is made of a materia...  
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 ...  
WO/2001/030421A2
A piston comprises a first member (1404) and a second member (1201). The first member (1404) has an external proximate side and an external distal side. The external proximate side is adapted to contact the fluid and is made of a materia...  
WO2001007354A3
The system includes a pump (1) with a removable pump module (10) with at least one displacement piston (80) and at least one piston valve (81). A motor (14 & 22) and base assembly provides the supporting components of the pump, which can...  
WO/2001/021525A1
A precision dispensing pump (10) for dispensing fluids and method of dispensing for use in semiconductor packaging and/or semiconductor assembly. The precision dispensing pump (10) employs a working fluid displacement drive (40) for volu...  
WO/2001/018396A1
Programmable, fluid pressure actuated blood processing systems (10) and methods are used in association with a blood separation device (18). The systems and methods employ a cassette (28), which contains several preformed, pneumatically ...  
WO/2001/018394A1
A flexible apparatus for metering agricultural chemicals in a wet blade chemical distribution system consists of a modular peristaltic pump delivery apparatus (24) having an impeller (38) and a mounting bore (30) in a computer-controlled...  
WO/2001/017604A1
Blood processing systems (10) and related methods place first (PP1) and second (PP2) fluid actuated pump stations in in-line communication between a source and a destination. The systems and methods apply fluid pressure pump strokes to t...  
WO/2001/017607A1
Blood processing systems and methods employ on-line mixing of a replacement fluid, e.g., saline, as a blood component, e.g., red blood cells or plasma, is being returned to a blood donor.  
WO/2001/007354A2
The system includes a pump (1) with a removable pump module (10) with at least one displacement piston (80) and at least one piston valve (81). A motor (14 & 22) and base assembly provides the supporting components of the pump, which can...  
WO/2001/004584A1
The invention relates to a dosing device with a novel valve body (32) that comprises two force-operated valves (33, 34) and/or a novel pump body (31) that comprises bellows (23) that receive and convey a hydraulic medium (41). The invent...  
WO/2001/002100A1
The invention concerns a pre-compression spray pump for dispensing measured amounts of a fluid product, comprising a piston (1) integral with an actuating rod (2) and sliding in a pump body (3) comprising a pump chamber (10) defined betw...  
WO/2000/078377A1
The invention relates to a mechanically operated liquid pump, in particular, for medicinal or physiologically nutritional liquids. According to the invention, the pump has the following features: a pouch (1) for receiving the liquid (2),...  

Matches 301 - 350 out of 2,523