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Patent Searching and Data


Matches 801 - 850 out of 5,949

Document Document Title
WO/1998/015738
The invention is concerned with a procedure for use with a pump (6) for the movement of liquid, powered by an internal combustion engine, which pump is not capable of pumping air (gas) and thereby drawing liquid up into itself at start-u...  
WO/1998/011347
An axial-flow blood pump (10) has a rotor (20) suspended in ball-and-cup bearings (38, 34) which are blood-cooled but not actively blood-lubricated. The ball-and-cup structures are made of highly heat-conductive material and are in heat-...  
WO/1998/011650
The invention concerns a rotary pump (3) having a housing (9) and a rotor (2) with blades (1b) which is placed inside the casing. The rotor (2) comprises a passive magnetically active rotor part (1) and the housing (9) is surrounded by a...  
WO/1998/009718
The weight of a fluid is used to drive a plurality of semi-permeable membranes or other filter material to produce a permeate, and in at least some level of the apparatus more than 30 % of the permeate produced is collected within a sing...  
WO/1998/006947
The present invention relates to a high-pressure centrifugal and submersible electrical pump which is particularly intended for pumping crude oil from wells having a low output and a high gas factor. A pipe (11) is mounted in the lower s...  
WO/1998/004834
The invention concerns a centrifugal pump, consisting of a pump head and a drive, for pumping blood and other shear-sensitive liquids, such as dialytic suspensions containing cells in haemodialysis equipment. It is characterized by the d...  
WO/1998/003214
A system for irrigating a surgical site is disclosed having a lightweight battery powered pumping unit (10) that is directly connectible to an irrigation source (12), and a handpiece (14) that either irrigates the site with irrigation fl...  
WO/1998/000643
Pumps, for example, bilge pumps, comprise a pump housing including an inlet (52) and an outlet (54), a motor (20) and an impeller assembly (24) coupled to the motor (20) for pumping liquid which passes through the outlet (54). The motor ...  
WO/1997/049440
A rotary pump for pumping fluids through a patient having a housing with an internal region, a stator member and an impeller positioned within the housing and having impeller blades, wherein the impeller is magnetically suspended and rot...  
WO/1997/049920
The present invention relates to a well pumping equipment comprising a pump (1) with an electric motor (2) that have their bodies placed into the well using a pumping and compressor pipe (3). This equipment also includes a frequency conv...  
WO/1997/047884
An apparatus for providing pressurized liquid for operating a hydraulically operated device of an airplane comprises a pump for pumping liquid, a high speed flood cooled permanent magnetic motor for driving the pump, a drive connecting t...  
WO/1997/046806
A submerged motor pump (4) has an auxiliary bearing assembly (19, 20) for supporting a rotatable main shaft (9) when the submerged motor pump (4) is not in an operating condition or operates in a transient condition. The submerged motor ...  
WO/1997/042413
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/1997/042414
An apparatus and method for a centrifugal pump (10) for pumping sensitive biological fluid which includes (i) an integral impeller and rotor (21) which is entirely supported and rotated magnetically by electromagnets (52, 54), (ii) a pum...  
WO/1997/039244
Vaned rotary apparatus, which may either be fixed or mounted for rotation, comprises an external casing (11) through which, in use, fluid is constrained to pass, characterised in that a plurality of inwardly-extending vanes (12) are carr...  
WO/1997/037696
The blood pump proposed has a motor housing (20) and a pump housing (32) which are rigidly connected to each other, spaced a certain distance apart. Both housings (20, 32) have essentially the same diameter of only about 6 mm, thus enabl...  
WO/1997/037698
The blood pump proposed has a motor housing (20) and a pump housing (32) which are rigidly connected to each other, spaced a certain distance apart. Both housings (20, 32) have essentially the same diameter of only about 6 mm, thus enabl...  
WO/1997/037133
A casing for use in fluid machinery, enclosing a fluid being treated, and comprising a nozzle (70) for transferring the fluid being treated to and from outside a system, a flange (71) detachably mounted to an outer periphery of the nozzl...  
WO/1997/029795
This invention is an implantable rotary blood pump without a shaft seal. The pump includes rotary element (18) having a pump impeller (38) at one end. The rotary element and the impeller are maintained in radial alignment by respective, ...  
WO/1997/029286
The invention relates to a centrifugal pump device, comprising a pump casing (1) having an inlet (2) and an outlet (3), an impeller device inside the casing (1) having one or more pump stages (5-7) with a common rotary shaft (4), and a n...  
WO/1997/027403
An unloading pump arrangement has a pump inlet (13) arranged in a well (12) at the bottom of a cargo tank. The unloading pump comprises a main pump (14a) and an auxiliary pump (30'') which is drive connected to impeller (15) of the main ...  
WO/1997/024532
A pump assembly for forcedly driving various liquids including water, comprising a motor pump provided with a space (40) around the stator (13) of a canned motor (6) to conduct a liquid being pumped, a bracket (45) mounted on an external...  
WO/1997/008808
A canned motor has a rotor (3), a stator (4) and a can (18) arranged between the rotor (3) and the stator (4). At least two bearings (30a, 30b, 30c) are mutually spaced in the axial direction (A) in relation to the rotor (3). At least on...  
WO/1997/008459
An improved electrical submersible pump is disclosed in which a processor (37) downhole is utilized to monitor one or more subsurface conditions, to record data, and to alter at least one operating condition of the electrical submersible...  
WO/1997/008807
The invention relates to a canned electric motor for a centrifugal pump, having a rotor (3) with an axis of rotation (A) and a stator (4), in which the rotor (3) is a hollow cylindrical outside rotor running in the direction of the axis ...  
WO/1997/006050
A discharge pump (14) is submersible in the cargo of a cargo tank (10) of a ship via a well (12) at the bottom (11) of the ship's cargo tank (10). A stripping pipe (28) runs from the discharge side of the pump to a delivery location (A, ...  
WO/1997/002403
A fluid recovery system for producing subsurface oil and water deposits comprises a high capacity pump such as a high capacity centrifugal pump (12) that is immersed within the deposit, a well casing (23) that extends into the deposit fr...  
WO/1996/041082
A relatively power efficient, low flow-rate pump comprises an integral rotor-impeller on a hollow shaft which forms the rotational axis. The rotor-impeller is permanently magnetized with alternating poles about its periphery faces and at...  
WO/1996/034205
A medical pump apparatus including an internally sterile pumping chamber having a flexible diaphragm forming a wall portion and a drive rod extending through the diaphragm in a rotating vane disposed within the pumping chamber. A motor r...  
WO/1996/034206
A safety pumping system including a pump (19) and an electric motor (15) is adapted to be immersed in a fluid (11) contained in a tank (10). The electric motor and the pump are interconnected by a driving shaft (23). The electric motor i...  
WO/1996/032588
Disclosed is a pump (1) that employs a magnetic coupling to connect the motor (2) to the impeller (20). A simplified structure within the pump (1) casing is employed to enable the easy removal of the pump's impeller (20) and bushings and...  
WO/1996/032592
A magnetic drive centrifugal pump with a pump chamber (7) containing a turbine (63) rotated by means of a magnetic coupling with a drive shaft (39) located outside the chamber (7). A magnetic flux-permeable confinement casing (25) insert...  
WO/1996/031703
A centrifugal pump assembly and method of using same including a vertical or horizontal overhung housing assembly (11) having a primary inlet (14), a primary discharge (16), a secondary inlet (38) and a secondary discharge (48). A shaft ...  
WO/1996/031937
A compressor (10; 100; 200; 300; 500) with a build-in reciprocating motor, comprises a cylindrical housing (20; 120; 210; 510) with two ends thereof fitted with tow opposing electromagnets (30; 130; 230; 530), each has a circular inner p...  
WO/1996/031934
The invention concerns a rotary machine which comprises a driven rotor (2) and an electric motor (4, 14), with a stator (4) and a driving rotor. The stator (4) is also in the form of an electromagnetic bearing (4, 14) for the driving rot...  
WO/1996/018817
An integral pump motor (97) or sealless magnetically coupled pump having a shrouded impeller (10) with a removable magnet carrier ring (30) attached to one side of the impeller shroud. Permanent magnets (38) are embedded in the magnet ca...  
WO/1996/016464
The invention relates to a split pot centrifugal pump with an electric motor secured on the pump housing and a split pot flange (10) on the split pot (6), in which the split pot with its split pot flange (10) is releasably secured to for...  
WO/1996/014511
A rotary pump which is suitable for use as the pump for a vehicle power steering system has an integral motor. The pump includes a housing (16) through which a rotatable shaft (4) extends having at one end a pump rotor assembly (5). The ...  
WO/1996/009476
A novel axial flow pump with a tube (Tu) attached to the impeller (R) and extending from the impeller eye (O) to the pump flange to improve pump tightness, and comprising an internal Archimedes' spiral with a hollow centre (a helical sur...  
WO/1996/006284
In this pumping unit, the motor (1) is supplied with a very low security voltage and the supply circuit comprises successively from the source (2) to the motor (1), a frequency converter (3) and a three-phase transformer (9).  
WO/1996/002763
A centrifugal pump, especially for fountains and aquaria, in which an electric motor and a pump are arranged mutually coaxially, whereby the electric motor is a single-phase motor with a permanent magnet rotor and is connected to an open...  
WO/1995/034943
Micromotors are fabricated with utilitarian features (21) on their rotors (23). In some embodiments, the features are formed by the molded addition of material on top of a rotor surface. In other embodiments, the features are formed by t...  
WO/1995/028185
A blood pump (10) features a chamber (30) with coated, smooth transition inlet and outlet ports (13, 14) and impeller (40) driven by motor (32-38; 42-46) which is controlled by power unit (80). A safety occluder (83) is provided on the c...  
WO/1995/025885
A unit has an electromotor (18) with a rotor (26) that consists of an armature (40) and of a flat commutator (32) and is at least partially surrounded by an injection-moulded casing (50, 62) made of plastics. The flat commutator (32) con...  
WO/1995/017583
A pump (20) for pumping fluids in a filration system is disclosed. The pump (20) has a thrust balancer to reduce axial loads on motor bearings of the pump (20) during operation of the pump (20). A drive system of the pump (20) includes a...  
WO/1995/016299
An electric motor driven pump (10) for pumping a hazardous liquid (14) includes an electric motor (30) having a housing (38), energizing means (32) surrounded by the housing and a rotatable output shaft (40) extending from the housing. T...  
WO/1995/014440
In a liquid separating unit for dental purposes, a liquid separating cyclone with a housing surrounding a cyclone chamber (22) in which the extractor's motor spindle (26) is inserted, is flange mounted on an extractor. At the end of the ...  
WO/1995/010696
This invention relates to a water pump for internal combustion engines, capable of effectively preventing the entry of dust into a bearing for an impeller shaft, and providing a small-sized simply constructed dustproof structure. In this...  
WO/1995/009984
A centrifugal pump (10) for pumping biological fluids such as blood includes a housing which defines a pumping chamber. The pumping chamber encloses an impeller (16) comprised of a spindle (42) for rotation about a spindle axis and a plu...  
WO/1995/009983
Pump comprising three distinct series of pumping stages driven on a single shaft by the same motor. Between the first and second series of pumping stages, the liquid is diverted through a by-pass line from the pump towards, for example, ...  

Matches 801 - 850 out of 5,949