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Patent Searching and Data


Matches 301 - 350 out of 1,704

Document Document Title
WO2004103888A3
A reciprocating fluid dispenser including a pump drive motor (50) which is coupled to a reciprocating fluid pump (42) to actuate a pump shaft (72) within a pump cylinder (60), wherein the pump shaft includes a duct (76) that allows fluid...  
WO/2005/039674A1
A pump system for the subcutaneous delivery of a liquid medicament, having a pump module (10) comprising a stator housing (28) with a chamber (30), a rotor (32) rotatably and axially slidably received in the chamber and comprising a firs...  
WO/2005/037109A1
The invention relates to medical engineering and can be used for different surgery fields. The inventive plunger pair for surgical tools, apparatus, devices etc comprises at least one external part made of a crystal based on $g(a) alumin...  
WO/2005/033507A1
The invention relates to a sliding device for a pump comprising two push-pull operated cylinders for conveying high-viscosity materials by means of a pivotable pipe that is bent in a substantially C-shaped manner, engages into a material...  
WO/2005/024229A2
A sanitary pump and sanitary valve is provided employing a dual action piston for providing a constant pressure metering and delivery of fluids utilizing a drive shaft positively driven and controlled by a drive motor for sanitary applic...  
WO/2005/017356A1
A servo driven dispensing pump is provided for dispensing a precise quantity of liquid. The dispensing pump includes an inlet for receiving a supply of liquid, an outlet for dispensing a metered amount of liquid, and a flow control valve...  
WO/2005/003559A1
The invention relates to a piston pump whose piston (4), via its upper and lower piston faces, delimits the working space inside the pump cylinder (5) on both sides. The working space (c) is joined via a lever system (19, 22, 25, 28, 31)...  
WO/2005/001283A2
A pump apparatus is provided which comprises a displacement pump and a ceramic valve construction formed of a ceramic rotor and a ceramic stator having flat surfaces which are positioned in sealing relationship. The displacement pump com...  
WO/2004/111509A1
A three-way two-position poppet valve (10) comprising a housing (12) with a generally cylindrical valve chamber (14), a first (20) and a second (16) port with coaxial 1 valve seats (26, 28) at the ends of the chamber, and a third lateral...  
WO/2004/106733A2
A metering pump for providing relatively, small, precise volumes of fluid is provided. The pump piston and/or the interior of the cylinder has a surface finish exhibiting a roughness average within selected limits and a vapor deposited p...  
WO/2004/103888A2
A reciprocating fluid dispenser including a pump drive motor (50) which is coupled to a reciprocating fluid pump (42) to actuate a pump shaft (72) within a pump cylinder (60), wherein the pump shaft includes a duct (76) that allows fluid...  
WO/2004/097220A1
The invention relates to a piston vacuum pump, comprising a cylinder (14) and a piston (12) which forms a compression chamber (28) together with the cylinder (14). The piston (12) reciprocates in the cylinder (14) with a compression stro...  
WO2004025119A3
The invention relates to a pump for thick material, comprising at least two pump units which alternate in a pumping and suction mode, a pump line, a suction line and a switch valve used for switching between the pump units, enabling a pu...  
WO/2004/085890A2
A moving cylinder assembly includes a cylinder having a chamber for receiving and engaging a piston, and a housing immediately embracing the cylinder and defining a slot through which the piston is positioned to allow for oscillating mov...  
WO/2004/059165A1
The present invention relates to a sliding motion structure for a concrete pump that can reduce the extent of abrasion and solve the problem of high maintenance expenses resulting from frequency replacement of the sliding motion structur...  
WO/2004/053331A1
A piston compressor comprises a piston (12) which reciprocates in a cylinder (14). A compressed gas supply arrangement is provided, comprising a compressed gas reservoir (34) and a compressed gas supply line (18) between a compressed gas...  
WO/2004/046551A1
The purpose is to supply positive and negative pressures by a single power source without separately using a compressor and a vacuum pump. A single pump having a discharge port and a suction port is used, with switching mechanisms attach...  
WO2003075441A3
A resonant electrical generation system (10) includes a resonator (14), an energy source (18), and an electrical generator (22). The resonator (14) provides resonating movement in a resonating element. The resonator (14) can include a ma...  
WO/2004/040135A1
A reciprocating liquid pump (1) for delivery of liquid fuel to a domestic burner device comprises an electromechanical drive means acting on a plunger (5) to reciprocate the plunger in a pump chamber (7) of a pump cylinder (6). Liquid fu...  
WO/2004/026481A1
A substance-atomizing apparatus (30) has a pump member (9) and a generator member (12). The pump member (9) has a piston (13) that is reciprocally moved in a cylinder (17) by a drive device (1) and pressurizes a raw material fluid. The g...  
WO/2004/025119A2
The invention relates to a pump for thick material, comprising at least two pump units which alternate in a pumping and suction mode, a pump line, a suction line and a switch valve used for switching between the pump units, enabling a pu...  
WO/2004/025122A1
A fluid-working machine has a plurality of working chambers, e.g. cylinders (11), of cyclically changing volume, a high-pressure fluid manifold (14) and a low-pressure fluid manifold (16), at least one valve (13, 15) linking each working...  
WO/2004/016947A1
A pump powered partly by a mechanical drive and partly by a pressurised fluid flow, offering energy savings up to 90% in reverse osmosis and similar systems. The pump consists of one or more piston-in-cylinder assemblies. One face of eac...  
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/2003/098042A1
A pivot pipe (1) for a two-cylinder thick material sludge pump is designed to reduce the rate of wear of the sealing surfaces and flow bores of the pivot pipe (1) and cooperating outlets on the two pump cylinders (42, 44). As the pivot p...  
WO/2003/075441A2
A resonant electrical generation system (10) includes a resonator (14), an energy source (18), and an electrical generator (22). The resonator (14) provides resonating movement in a resonating element. The resonator (14) can include a ma...  
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/2003/055626A1
A hydraulic device for pumping molten metal and/or controlling its flow, comprising an enclosure (11) that forms internally a cylindrical chamber (12), for the connection of at least one first duct (13) and one second duct (14) for the p...  
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/2003/044372A1
The invention relates to a rotary piston pump comprising a housing (10), an annular piston (18) in the form of a tubular segment, which is connected to a shaft (22) in a rotationally fixed manner and which is guided rotationally and disp...  
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...  
WO2003008804A3
A pump for pumping one or more media comprises a housing (1) having an actuator chamber (2) and at least one pump chamber (4). The pump chamber (4) is provided with an inlet port and an outlet port. The pump chamber (4) is delimited by a...  
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...  
WO/2003/008804A2
A pump for pumping one or more media comprises a housing (1) having an actuator chamber (2) and at least one pump chamber (4). The pump chamber (4) is provided with an inlet port and an outlet port. The pump chamber (4) is delimited by a...  
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...  
WO2002088545B1
A unit pump (10) is provided with a bleed port (12) spaced from the main injection port (14). The bleed port (12) improves the rate shape of injection through an associated fuel injector by slowing the initial rate of injection. The blee...  
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/2002/088545A1
A unit pump (10) is provided with a bleed port (12) spaced from the main injection port (14). The bleed port (12) improves the rate shape of injection through an associated fuel injector by slowing the initial rate of injection. The blee...  
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...  
WO2001035484A9
Disclosed are minute electromechanical devices (10, 11, 12), as electromagnetic actuators, pressure transducers, pumps and valves, which are conveniently fabricated from ceramic tape to yield monolithic ceramic and hybrid structures.  
WO/2002/040864A1
The invention relates to a piston pump comprising a piston (4) arranged in a pump chamber (6). In order to control an inlet (7) and an outlet (8) of the pump chamber (6) in a partial area of the circumferential surface thereof, said pist...  
WO/2002/038957A1
A pump includes a pump housing (10, 11, 20) that has a circular-cylindrical piston chamber (14), a rotatable and axially movable circular-cylindrical pump piston (40) in said chamber, means (30, 43) for rotationally driving the piston in...  
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/2002/010590A1
A resonator pump system (10) includes a resonating structure (14) configured for resonating, and a fluid pump (18) coupled to and driven by the resonating structure. An energy source (60) is operatively coupled to the resonating structur...  
WO/2002/008604A1
The invention relates to a piston pump (10), for an anti-skid hydraulic vehicle braking system. According to the invention, a longer opening duration for an inlet valve (38), embodied as a spring-loaded check valve, in the piston pump (1...  
WO2001013030A8
An apparatus and method for pressure processing a pumpable substance, such as a pumpable food product or slurry. In one embodiment, the apparatus includes a pressure vessel (10) having an inlet valve (20a) toward one end and outlet valve...  
WO/2001/077572A1
The invention relates to a medium pump (100), especially a lubricating oil pump for a motor chain saw, that comprises a pump housing (1) having a pump cylinder (14) and a pump piston (6) that is mounted in said pump cylinder (14) in the ...  
WO2001013030A3
An apparatus and method for pressure processing a pumpable substance, such as a pumpable food product or slurry. In one embodiment, the apparatus includes a pressure vessel (10) having an inlet valve (20a) toward one end and outlet valve...  
WO/2001/061193A1
A high pressure pump system (14) for use with a hydraulic engine system (10), such as a fuel injection system (10) or a compression release brake system, provides variable delivery of pressurized fluid using sleeve metering principles. T...  
WO/2001/059266A1
Piston compressors use predominantly self-actuated valves that are controlled by pressure differences. The main components of these valves are the valve seat and collector, one or more closing mechanisms, usually a plate or rings, and da...  

Matches 301 - 350 out of 1,704