Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8172205 | Rotating aerator for aquariums and ponds In an aerator (10) for aquariums and ponds there is an impeller (60) operated by an electric motor (20) having a first entry (246, 347) for the intake of water, a second entry (44) for the intake of air and an exit (254) whe... | 05/08/2012 |
| 8079573 | Apparatus and method for aerating waste water Apparatus for aerating waste water, provided with a container for waste water and a rotor which is rotatable about a substantially vertical axis (1) and the downward directed part of which can reach into the waste water, which rotor comprises blades (4... | 12/20/2011 |
| 8056887 | Apparatus for surface mixing of gasses and liquids A surface aerator for mixing gas and liquid is disclosed. The surface aerator has an upwardly pumping impeller located within a draft tube. A flow diverter redirects pumped liquid from the impeller traveling in an upward direction to a radially outward direction whe... | 11/15/2011 |
| 8011642 | Cruising aerator A cruising aerator includes a raft, a motor mounted on the raft, a shaft driven by the motor, a first impeller mounted on the shaft, a second impeller mounted on the shaft, and a common chamber. The cruising aerator further includes a sequential controller connected... | 09/06/2011 |
| 7810795 | Method and device for the foaming of at least one liquid or viscous substance In a method for the foaming of at least one liquid or viscous substance, provision is made such that the substance is introduced into at least one closed chamber and that the chamber is set into an oscillatory motion during the introduction. A device for the foaming... | 10/12/2010 |
| 7661660 | Method and apparatus for aeration of a fluid Disclosed are a method and system for providing improved aeration of a fluid that is propelled though a pump to efficiently transfer oxygen and other gasses to a liquid body. In addition to the aeration, circulation of the liquid body may be performed to provide add... | 02/16/2010 |
| 7651075 | Bubble generator A bubble generator includes an air intake device, an air guide device, an aeration disc and a rotating device. The air guide device is partially immersed in liquid and guides air flowed into the air guide device through the air intake device toward the liquid. The a... | 01/26/2010 |
| 7644909 | Apparatus and method for aeration/mixing of water The aeration system is for aeration and/or mixing of water, which system has at least one aeration unit that has a pump/propeller inside a feed pipe. The feed pipe, to which the water to be aerated, is sucked from beneath. The aeration system has the feed pipe expan... | 01/12/2010 |
| 7644910 | Method of generating micro gas bubble in liquid and gas bubble generation apparatus A method and an apparatus for generating gas bubbles, which can generate a large amount of micro gas bubbles having diameters of less than 15 μm, specifically less than 10 μm, in a liquid. The apparatus comprises a tube 2 having a closed end 14 at on... | 01/12/2010 |
| 7427058 | Method and apparatus for aeration of liquid medium An apparatus and method for mixing gas and liquid comprising a dome, lower housing, aerator device and flotation device, wherein intermeshed rotating sets of discs operate on parallel shafts driven by variable speed drives, and strakes are radially mounted on the di... | 09/23/2008 |
| 7398963 | Apparatus and method for diffused aeration An apparatus for mixing gas and liquid is disclosed. The apparatus includes a draft tube having a gas inlet, a liquid inlet, a gas-liquid outlet, and an impeller rotatably mounted within the draft tube. The gas can be entrained into the liquid by rotation of an impe... | 07/15/2008 |
| 7362037 | Ultrasonic transducer device for humidifier An ultrasonic transducer device for a humidifier, the humidifier having a vaporizing chamber for producing water vapor or mist, the ultrasonic transducer device comprises: a transducer holder having a central opening formed in a longitudinal direction of the transdu... | 04/22/2008 |
| 7334936 | Mixing device and method of mixing The present invention is a mixing device and a method of mixing viscous fluids with a mixing device. The mixing device includes a shaft and a support mounted for rotation with the shaft. A plurality of vanes extend from the support and are mounted for rotation with ... | 02/26/2008 |
| 7331569 | Liquid aeration system and method A system for aerating liquid within a liquid retention structure including a liquid delivery tube in fluid communication with a gas exchange chamber and a pump. The gas exchange chamber includes an air inlet and a gas outlet. The pump is configured to pump liquid wi... | 02/19/2008 |
| 7329340 | Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment systems A continuous flow multistage aerobic wastewater sludge digestion system comprising at least two stages connected in series, each stage comprising one or more covered tanks, tank segments or compartments, each having an enclosed separate gas headspace, wherein the ga... | 02/12/2008 |
| 7322565 | Stirring device and process for carrying out a gas-liquid reaction The invention describes a stirring device made from a gassing stirrer and a liquid mixer or two liquid mixers, which are arranged on a shaft and each have a feed and at least one exit opening, wherein the exit openings of the gassing stirrer and of the liquid mixer ... | 01/29/2008 |
| 7314571 | Methods and systems for removing floating solid waste from the surface of a watercourse A floating pond skimmer is coupled by a fluid conduit to a remote filter/aerating apparatus. The skimmer sucks a mixture of solids and water, grinds/chops the solids, and pumps the reduced solids and water through the conduit to the filter/aerating apparatus which s... | 01/01/2008 |
| 7310962 | Evaporative coolers An evaporative cooler has a housing mounted within the roof space of a pitched roof with the housing inlet, which mounts evaporative cooling pads, lying at or adjacent to the plane of the roof. This construction avoids the unsightly protrusion normally associated wi... | 12/25/2007 |
| 7309427 | System for treating liquids A system for treating wastewater includes a basin to contain wastewater, an aerator provided in the basin to mix the wastewater, and a cover system to cover a surface of the wastewater contained in the basin. The cover system includes a plurality of hollow bodies di... | 12/18/2007 |
| 7285212 | Method and apparatus for treatment of wastewater employing membrane bioreactors Methods and apparatus employing membrane filtration in biodegradation processes for treatment of wastewater are described. A bioreactor system is described having an equalization system, a membrane bioreactor system, and a controller. Aeration systems for a membrane... | 10/23/2007 |
| 7279145 | Multiphase reactor design incorporating filtration system for fixed--bed catalyst A unique reactor configuration especially suitable for interphase mass transfer and mixing of multiple phases, i.e. gas(es), liquid(s), and solid(s) where reaction is catalyzed by a solid catalyst comprises a draught tube reactor wherein the solid catalyst particles... | 10/09/2007 |
| 7267325 | Aeration method of pool water and apparatus thereof An aeration method of a water pool and an apparatus thereof are disclosed, suitable for use in an aquatic pool or an aerobic processing pool. The aeration method requires placing at least one biofilter device in the water pool. An aeration apparatus comprises a pump... | 09/11/2007 |
| 7264232 | Device for foaming a liquid A device for foaming a liquid includes a casing with a turbine arranged inside the casing. A shaft connects an agitator with the turbine. An air supply nozzle is coupled to the casing and a tube is coupled to the casing for conducting a steam supply to drive the tur... | 09/04/2007 |
| 7261279 | Device for stirring and aerating a liquid in a treatment vessel A device for stirring and aerating a liquid in a treatment vessel may include a funnel disposed in the upper portion of the vessel to form a passage with the vessel. A duct is connected to the funnel and extends toward the bottom of the vessel and includes an openin... | 08/28/2007 |
| 7243721 | Methods and apparatus for heating oil production reservoirs Methods and apparatus employing inert gases injected into the lower level of sloping underground oil-bearing formations as a driving mechanism and water injected into the upper level of the formations as a gas blocking mechanism for increasing and extending the prod... | 07/17/2007 |
| 7241389 | Oxidizing processes by oxygen transfer within a liquid medium in a reactor under pressure Methods for oxidizing a liquid with an oxidization gas in a closed volume reactor. A feed liquid which contains compounds to be oxidized is fed into the closed volume reactor, and a feed gas containing oxygen is fed into the reactor so as to form a gas overhead abov... | 07/10/2007 |
| 7232524 | Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive Methods and apparatus employing inert gases injected into the lower level of sloping underground oil-bearing formations as a driving mechanism and water injected into the upper level of the formations as a gas blocking mechanism for increasing and extending the prod... | 06/19/2007 |
| 7207779 | Impeller for radial-flow heat dissipating fan An impeller for a radial-flow heat dissipating fan includes a hub and a plurality of blades surrounding the hub. The blades are connected to a circumference of the hub to allow joint rotation of the hub and the blades. The impeller includes an air inlet side and a b... | 04/24/2007 |
| 7204476 | Speed-increasing machine for water A speed-increasing machine for water includes a frame member, a plurality of buoyant members mounted to the lower end of the frame member, a motor mounted to the center of the frame member, and a shielding cover mounted outside the motor. A rotating shaft of the mot... | 04/17/2007 |
| 7178979 | Water agitation system for water retention structure A water agitation system configured to be positioned within a water retention structure configured to receive and retain water, includes a housing having a drive shaft extending downwardly therefrom; at least one upright member connected to a cross beam that is conf... | 02/20/2007 |
| 7168848 | Axial-pumping impeller apparatus and method for magnetically-coupled mixer An impeller apparatus for use with a magnetically coupled mixer includes in one embodiment an axial-pumping impeller spaced axially apart from a driven magnet by a shaft. In another embodiment the impeller apparatus includes an up-pumping impeller spaced axially apa... | 01/30/2007 |
| 7168691 | Water resistant aerator system and method The water resistant aerator design of the present invention includes a combination of known waterproofing techniques with new techniques for wastewater aerators comprising: use of a threaded joint and thread sealing compound between the lifting handle and the top en... | 01/30/2007 |
| 7163198 | Stirring and aerating device for activated sludges A stirring and aerating device for activated sludges, wherein a towerlike frame is formed by a carrier element (2, 3) receiving a drive device (1) and at least three support elements (4) extending from said carrier element, wherein an air inlet ... | 01/16/2007 |
| 7156378 | Air seal enclosure for an aerator The design of an air seal enclosure of the system and method of the present invention includes a combination of use of a multisurface silicone sealant between the bottom endbell and the air seal enclosure to provide a watertight joint that prevents water from enteri... | 01/02/2007 |
| 7137620 | Diffuser and an aeration apparatus equipped with such a diffuser A diffuser (10) having a body (12) with a blind bore (18) having a closed impaction end (22). Fluids are diffused radially from the body (12) through slots (26). The diffuser (10) is characterized by a central slot ( | 11/21/2006 |
| 7128278 | System and method for irritating with aerated water An irrigation system for supplying aerated water to plants includes a diffuser. Oxygen is diffused into water by the diffuser to generate aerated water. The aerated water is supplied to an irrigation device which supplies the aerated water to the plants. ... | 10/31/2006 |
| 7121536 | Wave generator with oxygen injection for treatment of a body of fluid One embodiment of an aerator is disclosed that has a hollow intake housing with a horizontally disposed lip on a lower portion thereof. This intake housing converges a flow of bubbles into a draft tube. These bubbles are injected into a fluid in which the aerator is... | 10/17/2006 |
| 7121534 | Method and apparatus for gasifying a liquid A method and apparatus for gasifying a liquid wherein a liquid feedstock (2) to be gasified is passed down a surface (8) in the presence of a gas and into standing liquid (6), the surface having at least one change in gradient (8a, | 10/17/2006 |
| 7123472 | Common pivot arrangement of portable computer A common pivot arrangement mounted on a base member with first and second locating holes is disclosed to include a hinge unit having first through holes corresponding to the second locating holes of the base member and second through holes, and a rotary device, whic... | 10/17/2006 |
| 7119451 | Self-powered miniature liquid treatment system with ultraviolet dosing A liquid treatment system that may be self-powered includes a filter, an ultraviolet light source and a hydro-generator. A flow of liquid may be filtered with the filter and used to rotate the hydro-generator to generate electric power. The ultraviolet light source ... | 10/10/2006 |
