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| Number | Title | Issue Date |
| 8182237 | Rotary system for submerged pumps ROTARY SYSTEM FOR SUBMERGED PUMPS. The rotary system (2), object of the present invention, is composed of a motoreducer assembly, which is coupled to a rotating shaft (5), through a pulley transmission system. At the lower part of the rotating shaft ( | 05/22/2012 |
| 7850433 | Water circulation systems for ponds, lakes, and other bodies of water Circulation systems for ponds, lakes, or other bodies of water. In one set of embodiments, water is drawn up from the depths of the body for exposure to the atmosphere and to generate an overall, high flow circulation pattern throughout the entire body. In other emb... | 12/14/2010 |
| 7798784 | Water circulation systems for ponds, lakes, and other bodies of water Circulation systems for ponds, lakes, or other bodies of water. In one set of embodiments, water is drawn up from the depths of the body for exposure to the atmosphere and to generate an overall, high flow circulation pattern throughout the entire body. In other emb... | 09/21/2010 |
| 7713031 | Submersible pump apparatus and method for using same A submersible pump apparatus comprising a housing containing all the components of the pump assembly for using the submersible pump apparatus in a body of water. A float or a plurality of floats are attached to the top side of the housing for providing a positive bu... | 05/11/2010 |
| 7347255 | Device for detecting water in product-only pump flow stream A device for detecting the presence of water in a product-only hydrocarbon pump system particularly used for the removal of subterraneous hydrocarbons from a remediation site through a well. The device comprises a sealed float switch chamber, positioned either upstr... | 03/25/2008 |
| 7331704 | Start-up method for draft tube mixing A method for suspending settled solids in a liquid using a mixing assembly having a mixing vessel, draft tube disposed within the mixing vessel and an impeller disposed within the draft tube. The method includes rotating the impeller in a first rotational direction ... | 02/19/2008 |
| 7332074 | Water circulation systems for ponds, lakes, and other bodies of water Circulation systems for ponds, lakes, or other bodies of water using a flotation platform, dish, and impeller. One embodiment has a connecting arrangement between the drive motor and the impeller that permits the two to be easily and quickly coupled and uncoupled. T... | 02/19/2008 |
| 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 |
| 7306719 | Water circulation systems for ponds, lakes, and other bodies of water Circulation systems for ponds, lakes, or other bodies of water using a flotation platform, dish, and impeller. One embodiment has a connecting arrangement between the drive motor and the impeller that permits the two to be easily and quickly coupled and uncoupled. T... | 12/11/2007 |
| 7285208 | Water circulation systems for ponds, lakes, and other bodies of water Circulation systems for ponds, lakes, or other bodies of water. In one set of embodiments, water is drawn up from the depths of the body for exposure to the atmosphere and to generate an overall, high flow circulation pattern throughout the entire body. In other emb... | 10/23/2007 |
| 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 |
| 7086840 | Oil pump for a reciprocating hermetic compressor An oil pump for a reciprocating hermetic compressor comprising a pump body, having a free end immersed in the oil, and an opposite end coupled to the compressor, so as to be driven by the latter in a reciprocating axial movement, said pump body defining at the free ... | 08/08/2006 |
| 7052245 | Oil pumping system for a reciprocating hermetic compressor An oil pumping system for a reciprocating hermetic compressor having a shell, which defines in the interior thereof an oil sump; a motor compressor assembly; and an oil pump means. The oil pump means is coupled to the compressor by at least one dampening resilient m... | 05/30/2006 |
| 6945755 | Fluid controlled pumping system and method A fluid level controlled pumping system includes a pumping unit disposed within a fluid cavity. The pumping unit includes an inlet operable to receive a fluid to be pumped from the fluid cavity. The system also includes a valve slidably coupled to the pumping unit. ... | 09/20/2005 |
| 6755623 | Floating pump assembly A floating pump assembly including a compact floatation assembly structured to float on a body of water and supporting a flow pump housing having an inlet, outlet and fluid drive assembly being submerged and wherein at least the outlet is oriented in a predetermined... | 06/29/2004 |
| 6439853 | Water circulation apparatus and method This circulation device is equipped with a water impeller that is larger than and tightly fitted over the top of the draft tube through which the water from the pond or reservoir is drawn. By placing the impeller above and out of the draft tube it enables... | 08/27/2002 |
| 6312228 | Recovery pump for recovering floating oil A recovery pump capable of reliably recovering floating oil and/or floating matter such as scum or the like while being significantly down-sized. A pump casing is provided in a lower section thereof with a suction passage and a discharge passage. The suct... | 11/06/2001 |
| 6039546 | Float operated pneumatic pump to separate hydrocarbon from water A float operated pneumatic pump which separates water from hydrocarbons within a well at the pump in accordance with the density or specific gravity of the water and hydrocarbon fluid. The pump includes a displaceable fluid inlet for allowing fluid to ent... | 03/21/2000 |
| 6027313 | Gas assisted fluid delivery system A fluid delivery system includes a pump, a fluid conduit and a regulated gas inlet. The fluid conduit has an upper end connected to the pump and a lower end in communication with a fluid supply. The regulated gas inlet includes a gas supply at a first pre... | 02/22/2000 |
| 5813839 | Gas driven external combustion heat engine pump having the outlet pipe connected to a variable buoyant float An external-combustion heat engine pump, one version consisting of four chambers, one liquid and one gas pumping chamber, a gas heating chamber and a gas cooling chamber. The two pumping chambers are connected by two tubes, one near the bottom of the cham... | 09/29/1998 |
| 5662459 | Pressurized gas driven liquid pump having the outlet pipe connected to a variable buoyant float A pump mechanism adapted to float on a reservoir of liquid characterized by a floating enclosure provided with an internal chamber, an open cycling container, disposed within the chamber, an output pipe coupled to the cycling container and coupled to a sw... | 09/02/1997 |
| 5624238 | Portable water pump for use with swimming pools A portable water pump for use with swimming pools including a flotation collar having a recess formed therein. A circular aperture extends through the collar. The floatation collar is adapted for floating in a body of water. An engine is positionable with... | 04/29/1997 |
| 5510022 | Pond aerator A pond aerator for aerating and circulating water in a body of water comprising a pump having an inlet adapted for receiving water and an outlet adapted for transmitting pumped water; a power transmission mechanism coupled between the pump and an external... | 04/23/1996 |
| 5398104 | Passive toner concentration control system In an electrophotographic printer, an apparatus for supplying a liquid toner that has a solids concentration within a predefined range. A concentrated solids material and a carrier liquid is contained within a reservoir. The concentrated solids has a soli... | 03/14/1995 |
| 5244365 | Oil spill cleanup apparatus A cleanup apparatus for pumping oil and/or debris laden liquid from remote areas comprises an elongated tubular barrel having a distal end and a proximal end, an elongated plunger having a piston thereon reciprocably mounted in said barrel, a valving asse... | 09/14/1993 |
| 5240383 | Wheeled floatable conduit apparatus This invention relates to a wheeled floatable conduit apparatus attachable to a pump device to suck water into the conduit apparatus and force water through the conduit apparatus. The conduit apparatus comprises an elongate tube through which water or oth... | 08/31/1993 |
| 5234580 | Decanting apparatus with float supported submerged pump A decanting apparatus for a waste water treatment reactor which includes a float system which may be independent of the decanting apparatus end which allows the decanting apparatus to be removed without removing the float system. The decanting apparatus i... | 08/10/1993 |
| 5207897 | Floating hydrocarbons separator pump with buoyant housing and two-chamber vertically moveable member An automatic pumping system for removal of floating contaminants and oil and gasoline seepage from water wells. A vertically reciprocating cone-shaped member, like an inverted funnel, is moved between positions above and below the water surface. As it sub... | 05/04/1993 |
| 5186610 | Buoyant pump assembly A drilling mud water recovery apparatus for water collecting on drilling mud precipitated out of the mixture includes a buoyant pump assembly free floating on a layer of water above drilling mud. The pump assembly is connected with a source of electrical ... | 02/16/1993 |
| 5176503 | Pond water destratifier An aerator or destratifier used in small bodies of water is provided with a sealed flotation chamber in which a motor is completely housed. A stationary shaft runs between the top and bottom surface of the flotation chamber onto which the motor is mounted... | 01/05/1993 |
| 4998585 | Floating layer recovery apparatus A floating layer recovery apparatus is disclosed for selectively pumping a liquid floating on groundwater. The apparatus preferably includes a first float which is buoyant in the floating layer attached by a guide to a bottom float which has neutral buoya... | 03/12/1991 |
| 4957572 | Method and apparatus for the production of a bead of organic material intended to serve as a seal and insert in a multiple glazing In order to form a bead of organic material having a butyl rubber base and a viscosity greater than 35000 poises, the material in a drum is heated and pumped by a reciprocating pump and delivered to an output nozzle via a conduit. A lock chamber in the co... | 09/18/1990 |
| 4832013 | Portable underwater breathing apparatus A portable floating apparatus for providing pressurized air to a submerged diver. The apparatus is comprised of the combination of a gasoline engine and an air compressor, said combination being housed in a buoyant container similar to a suitcase. The gas... | 05/23/1989 |
| 4789307 | Floating pump assembly A pump assembly has a housing with water admitting openings through the housing near the bottom. A pump in the housing has an intake near the bottom. A water level sensor connects the pump to a battery in the housing when the level rises above the pump in... | 12/06/1988 |
| 4764313 | Air driven water circulation mill A flotation platform supports a mast assembly through which a drive shaft extends having a wind driven turbine on the upper end and a propeller on the lower end situated below the water surface. The propeller is rotated by the wind turbine and causes loca... | 08/16/1988 |
| 4674493 | Underwater breathing apparatus A floating apparatus for providing pressurized air to a submerged swimmer. A container is sealed and waterproofed so that it will float on the surface of the water and has an inlet above the water and an outlet below the water. The outlet is adapted to be... | 06/23/1987 |
| 4666335 | Pond spring A water circulating device designed to be installed in a pond or the like for circulating warmer subsurface water to the surface to prevent freeze-over of the pond. The device comprises a framework having a base section which rests on the floor of the pon... | 05/19/1987 |
| 4553902 | Floating portable pump A floating portable pump is constructed of a float defining a well for containing water, a centrifugal pump supported on the float with its impeller shaft extending vertically and with its suction inlet submerged in water in the well, and an internal comb... | 11/19/1985 |
| 4540528 | Apparatus for mixing gas and liquid Apparatus for mixing air with liquid, an aerator or oxygenator, comprises a motor or other power drive generally mounted in vertical position on a floating or a fixed structure, the motor having a shaft extending downwards through an opening in the center... | 09/10/1985 |
| 4526514 | Apparatus for pumping a viscous mass Apparatus comprising a barge or sled adapted to float or slide on the surface of a heavy viscous mass, a pump support frame, a metal net or latticed cage suspended under the pump support frame, the net or cage penetrating the mass to a slight depth to def... | 07/02/1985 |
