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| Number | Title | Issue Date |
| 7207781 | Pressure exchange apparatus with dynamic sealing mechanism A pressure exchange device is provided that utilizes a rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid. The housing may comprise a pressurized fluid contained therein to provide a sealing... | 04/24/2007 |
| 6241479 | Supersonic centrifugal compression and separation of liquid and gas mixture In a method of compressing a gas, a compression which is simple to realize is achieved in that, in a first step, a foam (21) is formed from the gas and a liquid, in which foam (21) the sonic velocity is markedly lower than in the gas and in the liquid tak... | 06/05/2001 |
| 6146111 | Automotive water pump A water pump allows adjustment of the drive belt by rotating a portion of the water pump housing. The water pump eliminates the need for additional drive-belt tensioning parts, therefore simplifying maintenance procedures. The pump housing has a support m... | 11/14/2000 |
| 5755288 | Downhole gas compressor A gas compressor is employed downhole in a well for pressurizing formation gas. The gas compressor is driven by a downhole electrical motor. The downhole assembly also includes a pump. The pump might be located below the motor and driven by the same motor... | 05/26/1998 |
| 5605193 | Downhole gas compressor A gas compressor is employed downhole in a well for pressurizing formation gas. The gas compressor is driven by a downhole electrical motor. The downhole assembly also includes a pump. The pump might be located below the motor and driven by the same motor... | 02/25/1997 |
| 4917577 | High speed centrifugal oxygenator A centrifugal oxygenator pump includes a bottom inlet into an impeller chamber, the bottom inlet having a venturi gas inlet for mixing gas with the in flowing liquid. The impeller chamber is of a frusto-conical shape within which is rotatably mounted a si... | 04/17/1990 |
| 4764311 | Apparatus for mixing gaseous mixtures into the water of a protein skimmer The present invention provides a process and apparatus for mixing gaseous mixtures into sea-water pumped from an aquarium through the contact tube of a protein skimmer. The invention forms air bubbles of a specific uniform diameter so as to obtain an opti... | 08/16/1988 |
| 4594293 | Clad material with unheated welding adhesion A clad material which is characterized by interposing, between two or more materials to be clad, an intermediate substance comprising one or more kinds of metallic fine powders having improvement properties of adhesive strength.... | 06/10/1986 |
| 4351514 | Apparatus for purifying molten metal An improved molten metal pump and gas injection apparatus comprising a submersible pump housing 10 enclosing a rotatable impeller 30, an impeller drive 12 supported above the housing and an elongate drive shaft 16 operatively connected to the impeller. Ro... | 09/28/1982 |
| 4316703 | Gas compressor The specification discloses a gas compressor incorporating a rotating wheel with cavities therein, the cavities transferring gas into a chamber of elevated pressure while simultaneously using the cavities to transfer a liquid out of that chamber.... | 02/23/1982 |
