Patents in subclass Pumps/Buoyantly Supported
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07332074 | 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... |
02/19/2008 |
| 07306719 | 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... |
12/11/2007 |
| 07285208 | 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... |
10/23/2007 |
| 07086840 | 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... |
08/08/2006 |
| 07052245 | 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... |
05/30/2006 |
| 06755623 | 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... |
06/29/2004 |
| 06439853 | 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... |
08/27/2002 |
| 06312228 | 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... |
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... |
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... |
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... |
09/29/1998 |
| 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... |
04/29/1997 |