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Matches 501 - 550 out of 3,929

Document Document Title
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) ...  
WO/1998/015735A1
A pump includes a housing defining a cavity, at least one bore, a bore inlet, and a bore outlet. The bore extends from the cavity to the outlet and the inlet communicates with the bore at a position between the cavity and the outlet. A c...  
WO/1998/015482A1
The invention concerns an arrangement for conveying thick matter, in particular liquid concrete. The arrangement comprises a pump (12) which is to be charged on the input side with thick matter to be conveyed, and a distributor (10) whic...  
WO/1998/011346A1
The invention concerns a pump for thick substances, in particular for delivering concrete. The pump comprises a material feed container (14), two feed cylinders (10) whose end-face openings (22) lead into the interior of the material fee...  
WO/1998/009076A1
The invention relates to a travelling thick matter pump with a driving mechanism presenting an automobile engine(40) and a gear box (42), wherein the driven shaft (46) of the gear box can be connected via an interposable transfer gear (4...  
WO/1998/008761A1
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/1998/002368A1
The invention relates to the use of polyethylene materials for the production of solid storage and transportation containers, and also for the production of lined storage and transportation containers for chemicals, and in particular for...  
WO/1998/000640A1
A diaphragm failure monitoring system for detecting leakage in a diaphragm of a diaphragm pump. The system includes a pump (10) having an operating chamber (16) containing a working fluid (30) and a pumping chamber (14) for pumping mater...  
WO/1997/046804A1
This invention relates to a ram-type mud pump comprising a pump body, a cam plate driving shaft in the said pump body, a swash plate supported on the driving shaft via a ball coupling and swayable with the rotation of the cam, at least s...  
WO/1997/042413A1
An apparatus and method for a centrifugal pump (10) for pumping sensitive biologic fluid, which includes (i) an integral impeller and rotor (21) which is entirely supported by an integral combination of permanent magnets and electromagne...  
WO/1997/032130A1
A vapor recovery pump for pumping flammable vapors is disclosed. The pump includes a pump unit that defines a pump chamber into which the vapor is first drawn and then exhausted from. A motor contained in a motor housing provides the mot...  
WO/1997/018395A1
The invention relates to a sequential control system for two-cylinder thick medium pumps whose delivery cylinders (1, 1') are actuated hydraulically by two drive cylinders (5, 5') in opposing cycles. A pipe shunt (3) is provided inside a...  
WO/1997/008460A1
The pump is formed by a body having a cavity with a piston chamber (411) in which a piston (81) is reciprocated. A rotatable crankshaft (71) is provided to reciprocate the piston along inward and outward strokes to draw ammonia into the ...  
WO/1996/027687A1
A cermet comprises a ceramic component (e.g., WC) and a binder comprised of a major component (e.g., one or more of iron, nickel, cobalt, their mixtures, and their alloys) and at least one additive component (e.g., one or more of rutheni...  
WO/1996/024767A1
A process and device are disclosed for feeding concrete and other thick materials from a container into a feeding pipe by means of two feeding cylinders that can be alternatively connected to the container or to the feeding pipe by a swi...  
WO/1996/014492A1
A dual-piston pump apparatus (12) includes a pair of reciprocating sleeves (78) within which a pair of reciprocating pistons (80) are disposed. The pistons (112) and sleeves (78) are each supported on a frame (10) for independent movemen...  
WO1995023000A3  
WO/1995/034756A1
A high pressure, tandem positive displacement piston pump (10) for pumping a corrosive fluid is disclosed. The pump includes two axially opposed pump bodies each having an inlet (26A, 26A') and outlet (28A, 28A') as well as a plurality o...  
WO/1995/030088A1
The invention relates to a thick matter pump, especially a concrete pump, with a material feed container (14), two conveyor cylinders (10) opening at the front (22) into the inside of the material feed container (14), a swivelling pipe (...  
WO/1995/023000A2
In one embodiment described in the specification, a surgically implantable reciprocating pump employs a check valve as the piston, which is driven by a permanent magnet linear electric motor to assist either side of the natural heart. Th...  
WO/1995/019941A1
The invention relates to novel wear and corrosion resistant parts for use in liquids and/or solids transportation and, in a particularly preferred embodiment, the invention relates to slurry pump parts, and methods for making the same. M...  
WO/1995/018304A1
The invention concerns a slide valve for a two-cylinder pump, in particular a truck-mounted concrete pump. The slide valve (20) has an essentially C-shaped swing pipe (16) which is connected at the upper end by a rotating joint to a disc...  
WO/1995/007412A1
A plunger pump for Bingham fluid, in particular a UV-curable ink, is designed to minimise mechanical stress in the ink during its flow from an inlet (9) at an axial end of a cylinder (8), through a non-return ball inlet valve (11, 12, 16...  
WO/1995/005538A1
The invention concerns a device for opening and closing a closure cap (16) fitted over a cleaning aperture (10) in the floor of the discharge container (12) of a pump (14) for thick-bodies fluids. The cap (16) is linked to a hydraulic dr...  
WO/1995/003491A1
A process is disclosed for continuously conveying shear-sensitive fluids, in particular polymer lattices or plastic dispersions when sampling, processing and measuring samples. Also disclosed is a device for carrying out the process, as ...  
WO/1995/002479A1
Vacuum die casting machine including an improved siphon tube (26) for transporting molten metal (32) from a reservoir (22) to a shot cylinder (20). The siphon tube (26) defines a passageway (80) having a first end portion (86) which is a...  
WO1994023201A3  
WO/1994/023201A2
Cryogenic fluid piston pump functions as stationary dispensing pump, mobile vehicle fuel pump etc., and can pump vapour and liquid efficiently even at negative feed pressures, thus permitting pump location outside a liquid container. Pis...  
WO/1994/020189A1
To avoid deposits on the restrictor that channels extractant into a collector (1901), a heated capillary tube (1900) pressure release restrictor has a thermally insulated outlet end in a collecting trap (1908) substantially colder than t...  
WO/1994/020188A1
To collect analyte in a supercritical fluid extraction process, the extractant flows to a collection container (130) under pressure. In one embodiment, the collection container (130) contains collection solvent (144) through which the ex...  
WO/1994/020190A1
To supply supercritical fluid to an automatic supercritical fluid extractor and collect extract from the extractor, sample holding cartridges (30A) are lifted one by one in series by an elevator plug into a pressure chamber (24A). An inl...  
WO/1994/019564A1
A pump (10) for viscous fluids or slurries, such as liquid concrete or liquefied ground bone meal, has a steel frame (15) in which is mounted a large diameter cylinder (11) leading to a tapered outlet (12). An inlet (25) having a hopper ...  
WO/1994/018501A1
In order to convey thick matter and solids together and substantially continuously, the invention proposes that the thick matter be forced by a conveyor piston (4) of a piston pump (2) from a feed container (6) into a conveyor cylinder (...  
WO/1994/004821A1
A tube switch for a double-cylinder sludge pump is provided including a swing pipe (202), a wearing ring (204) and an elastic member (206). The swing pipe (202) is adapted to swivel in front of a center plate (5) and includes an extensio...  
WO/1993/018301A1
A process and device are disclosed for determining by a measurement technique the flow rate of a substance conveyed by means of a thick matter piston pump (1) through a delivery pipe (22). The thought at the basis of the invention is tha...  
WO/1993/016829A1
A pump apparatus for pumping molten metal from a furnace (5) to a place where it is to be used (46) is described which comprises a pump (1) of gas-plunger type having a container holding a chamber (18) with an inlet (47) for drawing meta...  
WO/1993/004282A1
In a hydraulic control device for a viscous fluid pump with at least one feed cylinder (11) drivable by a hydraulic cylinder (12), the feed chamber (17) of which can be alternately connected via a hydraulically operable inlet valve (18) ...  
WO/1993/002288A1
The invention relates to a material feed container for thick substance pumps to convey thick substances containing fibrous and/or strip components with an upwardly directed material supply aperture (42), at least one material outlet (16)...  
WO/1992/007190A1
Apparatus (20) for successively supplying substantially equal portions of a flowable comminuted product such as sausage from a source thereof to a delivery zone is disclosed wherein dual product portioning chambers (80, 88, 82, 90) are p...  
WO/1992/004543A1
A pump of displacement type, designed to be driven hydraulically, comprises at least one pump housing chamber (5, 5A), one pump housing cylinder and a plunger (10, 10A) mounted in the pump housing cylinder, which plunger during the pump ...  
WO/1992/001159A1
A feeding reservoir for thick matter, two-cylinder pumps has a switching pipe designed as a swing pipe (34). The front wall (12) of the feeding reservoir (10) has two pump-side openings (22) that lead to the feeding cylinders (26), where...  
WO/1992/001158A1
The invention relates to a device for conveying dense substances, muds and the like with a dense substance pump (14), a conveyor line (12) connected to the pressure side of the dense substance pump (14) and a retainer (10) arranged in th...  
WO/1991/019094A1
A rotary ram pump (1) for handling fluids and particulate slurries, the pump comprising a housing (2), a barrel (3) rotatably mounted in the housing, and a plurality of peripherally spaced motor and pump cylinder pairs (5, 6) and associa...  
WO/1991/008445A1
Flow of a multi-phase fluid and of the gas and liquid fractions it contains is measured in a positive displacement fluid moving device e.g. a piston pump by sensing the position of a fluid compressive member e.g. a piston (10) as by a pr...  
WO/1991/003645A1
A chop-check pump (10) for viscous material having cylinder means (12) defining an axis, a drive rod (16) axially movable within the cylinder means (12), a primer valve attached at one end of the drive rod and movable with the drive rod,...  
WO/1990/011449A1
A servo control for a two-cylinder pump for thick materials comprises two delivery cylinders (1, 1') which open through front-face openings (2, 2') into a material dispenser container in which a hydraulically operated shunt pipe (3) is a...  
WO/1990/008897A1
The invention concerns a device for the compression of multiphase fluid, such as unprocessed petroleum well stream. The device is particularly suited for subsea installations. The principle mode of operation is a piston (12), which is po...  

Matches 501 - 550 out of 3,929