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Matches 451 - 500 out of 3,914

Document Document Title
WO/2003/004873A1
The invention relates to a device for conveying free-flowing or bulk materials. The inventive device comprises at least one conveyor piston (24) that can reciprocate preferably by hydraulic means (26), a support tube (30) axially guiding...  
WO/2003/004875A1
The invention relates to a device for transporting a bulk product to be transported. Said device comprises at least one transport piston (24) which moves back and forth by means of hydraulic systems (26), a support tube (30) which axiall...  
WO/2003/001062A1
A high-pressure pump (HP), especially developed for pumping of abrasive media like drilling mud and cement slurry, is disclosed. The pump comprises reciprocally acting diaphragm pumps (MP) that are driven by hydraulic power generated by ...  
WO/2002/101238A1
A hydraulic gas compressor from which compressed gas is supplied to a storage vessel (3). A relief valve (30) is normally closed and is connected to a hydraulic fluid supply line (35) such that it opens to relieve pressure in a compresse...  
WO/2002/086322A2
A fluid controlled pumping system includes a pumping unit (12) disposed within a fluid cavity (13). The pumping unit (12) includes a passage (60) extending to a suction end of the pumping unit. The system also includes a pressure source ...  
WO/2002/081917A1
A displacement pump (1) and an in-line damper which find application in the pumping of slurries. The device in each instance uses a conical flexible membrane (15) which is partially inverted. The membrane (15) is reciprocated to increase...  
WO/2002/057551A1
Method related to the hydraulic dredging of sediment from the sea bottom, the bottom of water dams or the like, inclduding a first operational step where sediment is sucked or pumped through a hose or pipe (2) to a second level located b...  
WO2002016766A3
A double-acting reciprocating motor with uni-directional fluid flow path comprises a piston disposed within a cylinder. A first chamber is defined by the cylinder space between the piston and a cylinder base. A second chamber is defined ...  
WO2002008522A3
The invention relates to a support boom for mobile working machines, especially for mobile concrete pumps. The support boom (20) has a boom body (38) that can be rotated around a vertical swiveling axis (32) on an undercarriage (10), a t...  
WO/2002/016766A2
A double-acting reciprocating motor with uni-directional fluid flow path comprises a piston disposed within a cylinder. A first chamber is defined by the cylinder space between the piston and a cylinder base. A second chamber is defined ...  
WO/2002/008522A2
The invention relates to a support boom for mobile working machines, especially for mobile concrete pumps. The support boom (20) has a boom body (38) that can be rotated around a vertical swiveling axis (32) on an undercarriage (10), a t...  
WO/2002/008605A1
The invention relates to a thick matter pump, especially for delivering concrete. The thick matter pump comprises two delivery cylinders (10), which open into a material feed basin (14) via openings (12) situated on the face. The thick m...  
WO/2001/083989A1
A device for pumping liquefied gas, comprises a pump body (3) having a cylindrical bore (5), a piston (15) arranged in the bore of the pump body and axially movable between a front and a back position; a drive means (19, 21) for movement...  
WO2001017581A3
An improved intravascular blood pump system (10) and related methods involving the broad inventive concept of equipping the intravascular blood pump (12) with guiding features such that the intravascular blood pump can be selectively pos...  
WO/2001/042570A1
The invention relates to a method and an arrangement for concreting vertical shafts having a depth of e.g. 500 m or more. The concrete is conveyed to a low-lying application location (20) in the shaft by means of a concrete column that i...  
WO/2001/040649A1
The invention relates to a thick matter pump comprising at least pump units (1,2) which alternate between at least two operational mode i.e. a pumping operational mode and a suction operational modes. The pump comprises a pump line, a su...  
WO/2001/040653A1
A fluid device capable of preventing sediment from stagnating and accumulating in a liquid chamber of a pump when a transfer liquid containing sediment such as slurry is used, wherein a suction port (18) and a delivery port (19) and a di...  
WO/2001/017588A1
This invention describes a method for pumping or delivering fluids utilizing a flexible vessel subject to controlled pressures within another pressure vessel. The pressure vessel can be sourced with positive and/or negative (e.g., vacuum...  
WO/2001/018395A1
Systems and the related methods for the pumping of fluids through a pump. The pump comprises a pump chamber (PPN), which is responsive to applied pressures to convey fluid. The systems and methods employ control measures, implemented thr...  
WO/2001/017581A2
An improved intravascular blood pump system (10) and related methods involving the broad inventive concept of equipping the intravascular blood pump (12) with guiding features such that the intravascular blood pump can be selectively pos...  
WO/2001/009511A1
A cryogenic pump manifold (10) comprises an inlet head (28) with a subcooler (56) disposed around it and a heat exchanger (30) on the inlet side of the inlet header and subcooler. An expansion device (70) is disposed between the inlet he...  
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),...  
WO/2000/061944A1
The invention relates to a pump system for delivering cryogenic liquids. Said pump system can be used for refuelling motor vehicles with H¿2?. The inventive system consists of a container for receiving the cryogenic liquid. At least one...  
WO/2000/061945A1
The object of the invention is a pumping method and arrangement, in which at least two chamber pumps (A, B) are operated in order to achieve a constant output flow. In the pumping procedure and arrangement in question, the entry chamber ...  
WO/2000/061943A1
The invention relates to a piston metering pump (1) for aggressive liquids, notably liquid metals such as lead or aluminium, which comprises a pump housing with a pump base. The pump base has at least one valve which communicates with se...  
WO/2000/061990A1
The invention relates to a pump system for delivering cryogenic liquids. Said pump system can be used for refuelling motor vehicles with H¿2? and consists of a container (1) for receiving the cryogenic liquid. At least one pump (2) is a...  
WO/2000/051922A1
A method is provided for incorporating a foaming agent into mixtures of particulates and then forming a foam within the mixture to increase the flowability of the particulates. A method is also provided for excavating solid particulates,...  
WO/2000/047888A1
A high-pressure fuel feed pump of an internal combustion engine, wherein an intake valve which is opened and closed automatically by a pressure inside a pressurizing chamber is installed in a fuel intake path, and the intake valve is pus...  
WO/2000/045085A1
A bottom entry pumping system for liquids, particularly cryogenic liquids, is described which includes a container with an outer wall, which may be concrete and/or metal, and an optional inner metal liner. A line is provided for transpor...  
WO/2000/040342A1
Novel hand-held single or two-component viscous fluid material dispensing gun, particularly though not exclusively useful for dental use and the like, and using in-line longitudinal drive racks (4) and fluid cartridge containers (1), the...  
WO/2000/034655A1
A hydraulic compressor arrangement includes hydraulic rams A and B with associated non-return valves (13 and 16). A hydraulic pump (7), typically electrically operated, provides a pressurised fluid source to operate rams A or B to allow ...  
WO/2000/034554A1
The invention relates to an extrusion pump for conveying a liquid polymer melt. A drive shaft (3) is provided for driving the conveying means, which are embedded in a pump housing (1). Said drive shaft (3) penetrates the pump housing (1)...  
WO/2000/006890A1
A pump for pumping fluid including: a pump body (7) having a pumping chamber (14) therein; an inlet control means (23) adapted to be in fluid communication with a fluid supply means for supplying fluid to the pump; and an outlet control ...  
WO1999051880A3
The invention concerns a multi-cylinder piston pump (10) which includes a cam (18) rotatable about an axis and a series of pumping pistons (30) which reciprocate in cylinders (28) which are spaced apart about the cam axis. The cam (18) i...  
WO/1999/058235A1
The invention relates to a material feed container (20), especially for thick matter pumps, comprising a lower part (38) that is open towards the top and a motor-driven agitator (44) that extends through the lower part (38) of the contai...  
WO/1999/051880A2
The invention concerns a multi-cylinder piston pump (10) which includes a cam (18) rotatable about an axis and a series of pumping pistons (30) which reciprocate in cylinders (28) which are spaced apart about the cam axis. The cam (18) i...  
WO/1999/040320A1
The present invention relates to a tubular branching system for a dual-cylinder thick-liquid pump, wherein said system comprises a pivoting hinged pipe (36) located in front of a glasses-like wear plate (34) on the cylinder side as well ...  
WO/1999/040319A1
The invention relates to a sliding device for two-cylinder pumps for liquids, especially designed for concrete pumps. Said sliding device (20) has an articulated pipe (16) which is bent and has substantially a C-shape. Said pipe is fixed...  
WO/1999/028221A1
The invention concerns a device (10) for transporting material such as concrete, comprising a flexible conduit (12) connected to a hopper (12), means for deforming the conduit comprising fist and second deforming elements (20, 22) mobile...  
WO/1999/024714A1
This invention relates to a medium and high pressure liquid natural gas fuel system for internal combustion engines and for other cryogenic systems. A cryogenic pump comprising: (a) a vessel for containing compressed gas and liquid; (b) ...  
WO1998008761A8
A method of transportation of mineral ores by pipeline. The method comprises the steps of crushing the ore into relatively fine particles, mixing (3) the crushed ore with a liquid carrier to form a relatively high density mineral slurry,...  
WO/1999/010640A1
The invention relates to an electronically controlled supply and dosing device for cryogenic media such as liquid hydrogen at -250 °C, for use preferably in aircraft engines but also for industrial applications. According to the inventi...  
WO/1999/009315A1
The invention relates to a two-cylinder thick matter pump for continuous delivery of a thick matter. Said pump has a reversing valve (5) which has a tubular separator housing (8, 8') with at least four openings (a-d). The tubular separat...  
WO/1999/000599A1
The invention relates to a piston pump for thick matter such as concrete, sewage sludge, excavated tunnel material and similar. The inventive piston pump has at least one hydraulically operated pump cylinder (10, 12). The pump piston (30...  
WO/1998/057063A1
The invention relates to a two-cylinder thick matter pump (1) comprising: a filling tank (2) for receiving thick matter; an agitator whose shaft (11) is placed in the filling tank (2), and a pivoting sleeve valve (16) fitted in the filli...  
WO/1998/053777A1
An apparatus and method are disclosed that utilize piezoelectric materials as part of a delivery system capable of the rapidly repetitive dispensing of a fluid to an intended target site. In a particular embodiment, the apparatus contemp...  
WO1998028540A3  
WO/1998/028540A1
A pum system in particular suitable for pumping hot media, such as hot mixtures of liquid and solid substances (slurries), which system comprises at least one displacement pump, preferably a membrane pump, and at least one bidirectional ...  
WO/1998/028540A2
A pum system in particular suitable for pumping hot media, such as hot mixtures of liquid and solid substances (slurries), which system comprises at least one displacement pump, preferably a membrane pump, and at least one bidirectional ...  
WO/1998/024734A1
A cement pumpability-enhancing additive which confers good pumpability on cementitious compositions such as concrete consists essentially of (a) polyethylene glycol; (b) diethylene glycol monobutyl ether and/or a derivative thereof; (c) ...  

Matches 451 - 500 out of 3,914