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...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!

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Assignee: Sulzer Pumpen AG


Location: Winterthur, CH
No. of patents: 30

NumberTitleIssue Date
7988411Flow machine for a fluid with a radial sealing gap
A flow machine for a fluid is presented with a radial sealing gap (9) between stator parts (4) and a rotor (3), wherein at least one wear ring (5) is provided at the sealing gap and is fastened to a stator part (4) via an elastical...
08/02/2011
D641381Pump casing
07/12/2011
D641380Pump casing
07/12/2011
D641379Pump casing
07/12/2011
7775527Shaft sealing arrangement for a pump for delivering hot fluids
A shaft sealing arrangement for a pump for delivering hot fluids includes a dynamic shaft seal (4), in particular a slide ring seal, in order to seal a rotatable shaft (2) relative to a housing (1), and a cooling ring (5) which is mounted...
08/17/2010
7622018Arrangement for and a method of treating pulp, and a method of modernizing a pulp tower
An arrangement for and a method of treating pulp, and a method of modernizing a pulp tower are disclosed. The arrangement and method relate to treating pulp in connection with high-consistency pulp towers, and especially to means (36, 42) for diluting pulp ar...
11/24/2009
7434479Method and an arrangement for the flow monitoring of multiphase mixtures
An arrangement (10) for the determination of the mass flow and of the gas/liquid ratio in a multiphase mixture during conveying includes—in the conveying direction (9)—a first venturi nozzle (5.1), a pump (1) and, after the pump, a se...
10/14/2008
7435277Gas separation apparatus, a front wall and a separation rotor thereof
The present invention relates to a gas separation apparatus, a front wall and a separation rotor thereof. The invention especially relates to the modification of the separation rotor and/or the front wall of the gas separation apparatus in such a way that liquid or ...
10/14/2008
7387708Process for feeding pulp into a blow tank or storage tank
A method and apparatus for treating pulp in connection with a blow tank or a storage tank. The pulp is discharged from a batch digester and fed either to the upper or the lower part of a blow tank, depending on the consistency of the pulp being discharged from the d...
06/17/2008
7338252Pump for the transporting of fluids and of mixtures of fluids
A pump for the transporting of fluids and/or of mixtures of fluids includes a housing (1) and at least one restrictor gap seal which is provided in the housing (1) to reduce the pressure in a restrictor gap along a rotatable part (2) of the pump...
03/04/2008
7326029Centrifugal pump and an impeller thereof
The present invention relates to a centrifugal pump and an impeller thereof. The present invention especially relates to modifying an impeller of a centrifugal pump in such a way that the pump may be used without a risk of damaging a shaft seal or the like at capaci...
02/05/2008
7306427Sealing arrangement for the attachment of a side plate of a centrifugal pump and an attachment screw used therewith
The present invention relates to a sealing arrangement for attaching a side plate often used with a pump volute of a centrifugal pump and an attachment screw used therewith. A characterizing feature of the sealing arrangement for attaching the side plate of a centri...
12/11/2007
D549751Bearing unit for a pump
08/28/2007
D549251Bearing housing for a pump
08/21/2007
D549252Bearing housing for a pump
08/21/2007
D549253Bearing housing for a pump
08/21/2007
D549254Bearing unit for a pump
08/21/2007
D549250Bearing unit for a pump
08/21/2007
7086832High pressure rotary pump in a pot housing with a pressure cap
The high pressure rotary pump in a pot housing includes a pressure cap (3). The latter has a flange part with a flange (4) with which the pressure cap is fastened to an end face and annular sealing surface (20) of a housing (2) by being s...
08/08/2006
6958109Process for feeding pulp into a blow tank or storage tank
A method and apparatus for treating pulp being fed into a blow tank or a storage tank. A preferred embodiment is that the pulp is discharged from a batch digester (10) and fed either to the upper or lower part of a blow tank (20), depending on the cons...
10/25/2005
6592340Control system for a vacuum pump used for removing liquid and a method of controlling said pump
A control system for a vacuum pump used for removing liquid from a suction washer of a pulp mill includes a pump with adjustable rotation speed and means for defining the operating point of the vacuum pump and a control/central unit wherein the performanc...
07/15/2003
6551054Method and apparatus for pumping a material and a rotor for use in connection therewith
A method and apparatus is disclosed for pumping a material, especially thick, gas-containing, fiber suspensions for wood processing. The apparatus includes a centrifugal pump with a rotor having blades twisted such that the pitch of the blade changes alon...
04/22/2003
6494675Flow machine for a fluid with a radial sealing gap between stator parts and a rotor
Self-supporting wear rings (1a, 1b) for fluid flow machines are arranged at a radial sealing gap (18) to a rotor (9), and have an outer jacket surface (3) provided with a wear surface (2). The wear rings (1a, 1b), which are fixed in the axial direction, c...
12/17/2002
6315453Liquid lubricated radial sliding bearing
With the invention liquid lubricated radial sliding bearings are shown, of which the bearing sleeve is elastically fastened in an outer part and forms an elastic journalling with a shaft part which can follow thermal heat expansions and inclined positions...
11/13/2001
6103128Method and apparatus for mixing gas with liquid
A mixing device in the form of a centrifugal pump is used to mix gas (typically air) with liquid (typically effluent water, dispersion water, or waste paper pulp suspension, etc.). The pump is provided with a common inlet conduit for both the liquid and t...
08/15/2000
6065345Method for monitoring the condition of a mechanical seal
In a method for monitoring the condition of a mechanical seal in an apparatus provided with a rotating part, in particular in a pump which has a rotating shaft for the forwarding of a fluid, the sound emission of the seal is continually measured at discre...
05/23/2000
6043580Rotodynamic machine for the forwarding of a fluid
A rotordynamic machine for the forwarding of a fluid, such as a turbomachine (2) or a centrifugal pump, has at least one drive and bearing apparatus (1) which is designed as an electrical machine with a stator and with a magnetically journalled rotor (4a)...
03/28/2000
5841020Apparatus and method for mixing, measuring and forwarding a multi-phase gas mixture
The container serves for mixing and measuring multi-phase fluids which are conducted in via a supply tube. The liquid and gaseous components are separated in the container and collected into a liquid volume as well as a gas volume. A liquid surface forms ...
11/24/1998
5613831Apparatus for thrust compensation on shaft of rotary pump
A pressure compensation system for a rotary pump prevents axial displacement of the pump shaft. The pump includes a shaft rotatable about a major axis extending centrally of the shaft, at least one impeller attached to the shaft, and a pump housing for en...
03/25/1997
5545008Method and apparatus for conveying a fluid
A centrifugal pump (10) conveys a fluid from a rotor wheel inlet opening (8) via a rotor wheel outlet opening (9) into a pressure nozzle (4). The fluid has a velocity profile between the outer flow line (c) and the inner flow line (d). The method allows a...
08/13/1996
 
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