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WO/2001/042653A1 |
An apparatus and method for a centrifugal pump (10) for pumping sensitive biological fluids which includes (i) an integral impeller and rotor (21) which is entirely supported and rotated magnetically by electromagnets (52, 54), (ii) a pu...
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WO/2001/025640A2 |
An improved mechanism is provided for adjusting the clearance between the outer edges of impeller vanes (10) of a centrifugal pump and the interior surface of an adjacent intake plate (13). The impeller (7) having the vanes (10) is mount...
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WO/2001/020169A1 |
The invention relates to a feed pump (2) which is configured as a side channel pump. According to the invention, a blade chamber (12, 13) of an impeller (5) comprises a contour formed by a radius (R) of which the beginning of the radius ...
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WO/2001/020165A2 |
A top-flow fluid pump (100) that is made from a high-purity fluroplastic material is disclosed. The pump (100) is used to circulate extremely corrosive fluids that are heated to temperatures of 160-180 degrees Celcius through at least on...
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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...
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WO/2000/079133A1 |
The inventive liquid pump has a blade wheel (10), which is provided with blades (12) and which is rotationally driven in a pump chamber. The pump chamber is limited by wall parts (24) in the direction of the axis of rotation (18) of the ...
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WO/2000/074812A1 |
The invention relates to a degassing centrifugal apparatus such as a pump and to a process for pumping and degassing a fluid. The apparatus has a rotatable hollow rotor (20) connected to a stationary fluid inlet (14) at one end and a sta...
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WO/2000/074811A1 |
The invention relates to a degassing centrifugal apparatus such as a pump having energy recovery means and to a process for degassing a fluid. The apparatus has a rotatable hollow rotor (20) connected to a fluid inlet (14) at one end and...
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WO/2000/064701A1 |
The invention relates to a pump device for improving the loading capacity of tank vehicles which are loaded by establishing partial pressure in the complete tank and drawing the liquid into the tank through a suction line. The solution i...
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WO/2000/043677A1 |
The present invention relates to a method and apparatus for pumping a material and a rotor used in said apparatus. Especially preferably the method, apparatus and rotor according to the invention are suitable for pumping thick, gas-conta...
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WO/2000/037803A1 |
A pump apparatus has a chamber (12), an inlet (15) at the bottom of the chamber (12), an impeller (16) driven by a motor (13), an outlet (22) on one side of the chamber connected with a discharge line, and circulation ports (26c, 44) tha...
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WO/2000/034663A1 |
An impeller (10) suitable for use in a centrifugal pump (50), the pump (50) including a pump chamber (54) and a pump inlet (56). The impeller (10) includes a main body portion (12) which includes a plurality of primary pumping blades (16...
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WO/2000/032256A1 |
Disclosed is a blood pump having a pump housing (10) in which an impeller (16) is arranged without housing. An external magnetic drive device (33) turns the impeller (16) via a magnetic coupling (32, 36). The lower side (30) of the wings...
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WO/2000/028219A1 |
An apparatus for moving a stream of molten metal comprising a pumping member, a housing (3) at least partially enclosing the pumping member, a power device seated on a support (22), a shaft connecting the power device and the pumping mem...
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WO/2000/026542A1 |
The invention relates to a compensator modular unit for a multistage pump housing, ensuring as compensation device during hot or cold temperature shocks compensation of changes in length caused by said shocks.
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WO/2000/022303A1 |
A centrifugal pump for pumpinp a pulp suspension, where the pump comprises a housing (10) with an inlet and an outlet for the pulp suspension and on a rotary shaft mounted an impeller with pump blades (15), which extend from a hub (16) o...
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WO/2000/009889A1 |
A device for pumping molten metal that eliminates rotor bearing members comprises a pump having a pump chamber (26) including a first bearing surface (62A), and a monolithic rotor (100) having a second bearing surface (200) that aligns w...
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WO/2000/007912A1 |
An apparatus for transporting particulate material includes a housing (112, 146, 147, 190, 200, 302, 720) having an inlet (114, 321-326) for receiving particulate material and an outlet (117) through which particulate material is dischar...
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WO/2000/005505A1 |
The present invention provides a device (10) to be incorporated into a centrifugal pump (20) for processing and pumping a slurry containing solid and semi-solid scale and aggregate. The device (10) is located at the pump suction line (21...
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WO/2000/001490A1 |
A grinder pump (50) includes a pump assembly (110), a grinder mechanism (100), and a motor (75) disposed between the grinder mechanism (100) and the pump assembly (110). A shaft (71) of the motor (75) is operably attached at one end (73)...
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WO/2000/000745A1 |
The present invention is for a centrifugal pump for fluids containing large or long objects of solid material. Solid parts cause problems at the pumping with centrifugal pumps thereby that they both stick to the edge of the shovels of th...
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WO/1999/066209A1 |
A centrifugal pump for pumping a pulp suspension where the pump comprises a housing (10) with an inlet and an outlet for the pulp suspension, and an impeller on a rotary shaft (13) with pump blades (15) extending from a hub (16) outward ...
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WO/1999/054026A1 |
A flow directing device (12), system and method for delivery and pumping medium to high consistency stock slurries eliminates bridging of stock, creates a non-vortexing improved flow into the pump suction of a pump (32), is independent f...
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WO/1999/051884A1 |
An impeller (101) for a molten metal pump (32) has a cylindrical body (103) comprised of a refractory material. The cylindrical body includes generally coplanar top (105) and bottom surfaces. A central bore (111) is provided in the top s...
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WO/1999/041418A1 |
A process and device are disclosed for precipitating solid compounds from the liquid zinc or liquid zinc-based alloys of a metal bath. According to the disclosed process, partial amounts of the metal phase containing the compound(s) are ...
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WO/1999/030039A1 |
A centrifugal pump capable of solving various problems which would otherwise have been caused in centrifugal pumps having an impeller rotatably received within a casing formed with a suction port and a discharge port and made of stainles...
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WO/1999/001663A1 |
A pump for transferring fragile and aggressive fluids such as human blood and comprising a chamber along with one or more fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and at least one outlet por...
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WO/1998/049448A1 |
A pump (1) for pumping a slurry comprises a pump housing (2) defining a pumping chamber (5) with an impeller (6) located therein for pumping the slurry from an axial inlet port (7) to a radial outlet port (8). The impeller (6) is carried...
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WO/1998/046879A1 |
A pump (10) for transferring fragile and aggressive liquids such as human blood and comprising a pumping chamber (12) along with a pair of fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and one or...
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WO/1998/046887A1 |
The centrifugal liquid pump (1) is of the rotary discs types and has an integrated gas injector of very simple yet efficient structure. This pump (1) has a casing (3) defining an inner, substantially cylindrical chamber (5) with an axial...
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WO/1998/025031A2 |
A molten metal pumping device is disclosed that comprises a pump base (50), one input port (56), a pump chamber (58) output port (11) rotor (70), rotor shaft (40), superstructure (24), motor (28), drive shaft (36) and coupling (38). The ...
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WO/1998/021480A1 |
The present invention relates to a centrifugal pump. Especially, the invention concerns a centrifugal pump capable of pumping liquid as free of pressure fluctuations as possible. Centrifugal pumps of this type are used, for instance, as ...
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WO/1998/015736A1 |
A molten metal transfer pump for transferring molten metal from a first vessel to a second vessel including a pumping chamber with an outlet to the first end of an elongated refractory tube (51) having a longitudinal axis substantially p...
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WO/1998/011347A1 |
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-...
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WO/1998/004833A1 |
A self-priming type centrifugal pump apparatus which is capable of performing suction transport of even a liquid containing viscous and bubbly sludge and solid foreign matters, affords full automatic operation by preventing invasion of t...
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WO/1998/004372A1 |
An apparatus (1) for treating molten aluminium or zinc having a housing providing a chamber (18) for containing a molten metal (19). The chamber (18) includes an inlet opening (20) and an outlet passage (22). A rotatable impeller (12) is...
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WO/1997/048833A1 |
An apparatus for removing bottom dross from molten zinc (11) contained in a coating pot (10) includes a pump (22), a traversing carriage (16) for positioning the inlet of the pump in a desired horizontal location and a slide mechanism (1...
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WO/1997/047889A1 |
A rotodynamic pump comprises a centrifugal impeller (11) provided within a volute body (7) and an emulsifier (17) provided in the region of an inlet of the volute body and rotatable with the centrifugal impeller for emulsifying material ...
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WO/1997/046806A1 |
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 ...
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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...
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WO/1997/040276A1 |
An impeller (1) for a molten metal pump having a cylindrical body comprised of a refractory material. The cylindrical body includes generally coplanar top (2) and bottom (12) surfaces. A central bore (4) is provided in the top surface (2...
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WO/1997/039178A1 |
System for feeding a suspension, preferably a suspension of chips in a liquid carrier, to a pressurized vessel in a cellulose pulp mill, which system comprises at least one pump (25, 26) between a low-pressure part and the pressurized ve...
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WO/1997/036044A1 |
A method and a device for degassing a gas-containing fluid medium in connection with the pumping of the medium by a centrifugal pump (6, 21, 29) which is designed for gas separation, where the gas is evacuated by the suction effect from ...
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WO/1997/030249A1 |
A material outfeeding device intended for working vehicles and including a bin (1) that is defined by two longitudinal side walls (3, 3') connected with each other via a bottom (2), a front end portion (5) and a rear end portion (4) that...
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WO/1997/030289A1 |
A rotating machine such as a submersible pump which comprises a casing (1) and a rotor (2) which is rotatable relative to the casing (1). The casing (1) defines an aperture adjacent to which the rotor is positioned such that an annular g...
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WO/1997/024596A1 |
A non-positive displacement pump (such as a centrifugal pump) is used to determine physical variables of a slurry (such as medium consistency paper pulp) or liquid. In essence by utilizing information from the manufacturer of the pump, a...
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WO/1997/021927A1 |
An impeller for a centrifugal pump (10) which includes a front shroud and a rear shroud, the shrouds being spaced apart so as to form a plurality of passageways (18) therebetween which are separated by a plurality of impeller blades (19)...
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WO/1997/013071A1 |
A centrifugal pump (10) having a rotatable impeller (30) that operates to drain liquid into the intake (32) of the pump. An air-introduction passage (72) connects with a subatmospheric pressure region at the back (36) of the impeller. Ai...
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WO/1997/011469A1 |
The present invention relates to an internal pump. A water hole (33) allowing communication between internal and external circumferences of a stretch tube (24) is provided at the portion of the stretch tube corresponding to a position wh...
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WO/1997/009482A1 |
The invention relates to a centrifugal suspension pump with gas separating means, comprising a pump wheel (3) with a hub (27), pump vanes (30) in a front pump chamber part (4A) facing the inlet, pump vanes in a rear pump chamber part (4B...
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