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| Number | Title | Issue Date |
| 7954790 | Composite shaft aspirator assembly A composite hollow aspirator shaft is formed of fiberglass-reinforced phenolic resin that resists abrasion and reduces the amount of vibration that is transferred to the motor rotating the shaft, and the motor's bearings to extend motor and bearing life. An aspirato... | 06/07/2011 |
| 7954789 | Composite shaft and self-centering coupling A composite hollow aspirator shaft is formed of fiberglass-reinforced phenolic resin that reduces the amount of vibration that is transferred to the motor rotating the shaft, and the motor's bearings. This extends motor and bearing life. When the aspirator tip is ro... | 06/07/2011 |
| 7784769 | Agitating device and method for sewage treatment The invention relates to an agitating device, in which a hyperboloid agitating body (6) is connected to a drive mechanism (2, 3) by means of a shaft (4). Several ribs (7) running from the circumferential boundary (Ur) in the direction of ... | 08/31/2010 |
| 7114844 | Aeration apparatus and method The present invention provides an improved aeration impeller for use in a mixing assembly having an axis of rotation. The aeration impeller includes a hub and a first and second blades that are connected to the hub. Each blade has a first portion positioned at an an... | 10/03/2006 |
| 6986507 | Mass transfer method A more efficient process and method for dispersing gas or other fluids into a liquid which may have solid suspension. More particularly, the process includes maximizing the transfer of oxygen by an impeller by selecting a Froude Number value and/or Surface Power Den... | 01/17/2006 |
| 6585405 | Mixing liquids and entrainment mixing of vapor into liquids Disclosed is a fluid mixer that mixes liquids while simultaneously promoting rapid mixing entrainment of vapor in the liquid. The device includes a vertical rotor mounted centrally on a base assembly. The rotor comprises a tube which is hollow from an ope... | 07/01/2003 |
| 6254066 | Apparatus for aerating liquid in a wastewater treatment tank An apparatus for aerating liquid in a wastewater treatment tank having a submergible motor with a shaft extending outwardly therefrom, a supporting member affixed to the submergible motor and adapted to maintain the submergible motor in a position within ... | 07/03/2001 |
| 6156159 | Device for mixing of a fluid into a pulp-suspension Process and device for mixing fluid into a pulp suspension of cellulose-containing fiber material, in which the pulp suspension is pumped in through a pump inlet (17), brought into rotation and, at the desired reaction pressure, mixed with the said fluid ... | 12/05/2000 |
| 5795504 | Apparatus for feeding and diffusing air or another gas into a liquid An apparatus includes a hollow shaft (6) with water jet vacuum pumps peripherally attached to the end thereof at a certain distance therefrom wherein the water pumps have vacuum pockets (3) communicating with the inside of the hollow shaft via ducts (5). ... | 08/18/1998 |
| 5711852 | Method and device for mixing of a fluid into a pulp-suspension A process and device for mixing fluid into a pulp suspension of cellulose-containing fiber material, in which the pulp suspension is pumped in through a pump inlet, brought into rotation and, at the desired reaction pressure, mixed with the said fluid whi... | 01/27/1998 |
| 4774060 | Equipment for purifying industrial waste gases Equipment for purifying gases comprising a housing having opposing closed end faces and containing wetting fluid which is reactive to impurities in the gas to be purified; a cylinder rotatably mounted within the housing such that the cylinder is mounted b... | 09/27/1988 |
| 4148619 | Flask and mechanical aerator An aerator for use in the neck of a flask for increasing the flow of gas from the exterior to the interior of the flask. The aerator has a gas-impervious exterior wall a plurality of gas moving members are positioned within the wall and tend to urge gas t... | 04/10/1979 |
