|
Match
|
Document |
Document Title |
|
|
5252025 |
Drainage pump
A drainage pump (10) in which the portion near the entrance of the impeller (12) in the suction tube (11) is open to the set lowest suction water level (L.W.L.) through an air intake pipe (15), so...
|
|
|
5154570 |
Vertical shaft pump
A vertical shaft pump to be disposed in a pump pit comprises a pump casing having a suction opening, and an impeller disposed in the pump casing below a position corresponding to the lowest water...
|
|
|
5074746 |
Constant speed vertical pump with aeration
According to the vertical pump of the present invention, a reverse U-shape air suction passage is connected to a suction casing which communicates with the impeller chamber, and a U-shape branch...
|
|
|
4756671 |
Low damage hydraulic fish pumping system
A submersible rotary impeller fish pump augmented by the release of large volumes of pressurized air into the pump's discharge stream during pump operation enables the pumping of fish or other...
|
|
|
4702676 |
Liquid driven pump or propulsive apparatus
The apparatus relates to a jet pump or apparatus which displaces a main fluid by a pressurized driving liquid. The apparatus has a duct to receive the main fluid, and a driving liquid manifold...
|
|
|
4689510 |
Electric motor and flywheel for operation while immersed in a liquid
An electric motor, for instance for a hydraulic elevator, is entirely immersed within a liquid such as oil, and is provided with a flywheel. A drawback of this kind of electric motor is that the...
|
|
|
4671741 |
Pipe for elevating liquids through successively arranged accumulating and communicating portions, and device provided therewith
A device for elevating liquids in which liquid is raised in a pipe under the action of a pressure difference which is smaller than a pressure difference of a solid liquid column having a height...
|
|
|
4643650 |
Fluid-raising apparatus driven by low hydraulic head
A fluid-raising apparatus includes a compression chamber which receives liquid, from an elevated source, such that gas in the chamber is pressurized and used to lift fluid through a vertical...
|
|
|
4613284 |
Apparatus for elevating liquids including a Venturi pipe and a liquid delay element
A wind pump has a liquid supply pipe connected with a convex pipe through a Venturi pipe open to wind, and a delivery pipe connected with the convex pipe and provided with a pumping-out element for...
|
|
|
4573877 |
Apparatus for elevating liquids including a pair of Venturi pipes having wind as motive fluid
An arrangement for elevating liquids with the aid of wind has an upper delivery pipe with an upper end connected to a pumping-out device, a lower supply pipe introducable into a water source and...
|
|
|
4558990 |
Composite pumping system
An article transfer pumping system combining the effects of a jet pump and an air lift pump to minimize article damage while increasing lift capability and overall system efficiency. Air lift pump...
|
|
|
4545731 |
Method and apparatus for producing a well
A system and method for producing earth formation fluids such as crude oil using a lighter oil to force the crude oil to the surface and thereafter removing the lighter oil by gas lift techniques....
|
|
|
4501659 |
Skimmer apparatus for swimming pools
Skimmer apparatus for swimming pools and the like having a receptacle in which a skimmer basket is fitted. The receptacle provides a chamber into which pool water flows through the skimmer. Water...
|
|
|
4373867 |
Pressure charged airlift pump
A pumping system is described for pumping fluids, such as water with entrained mud and small rocks, out of underground cavities such as drilled wells, which can effectively remove fluids down to a...
|
|
|
3963377 |
Pneumatically powered pump system
Disclosed is a pumping system using a pneumatically powered, submerged pump for lifting high viscosity oil from a well. The pump includes a flexible, bag-shaped expansible member or "bladder"...
|
|
|
3816026 |
AQUARIUM CIRCULATING APPARATUS
An airlift assembly for use in a filter bowl associated with an aquarium tank for pumping the filtered water by means of forced air bubbles expelled through a tube of the assembly thereby...
|
|
|
3814545 |
HYDROGAS LIFT SYSTEM
A power fluid is pumped downwardly through a power fluid tube toward the bottom of a well. The power fluid, due to pressure placed on the power oil fluid by a surface pump, forces the production...
|
|
|
3801167 |
DEVICE FOR CENTRALLY GUIDING THE WORKING PISTON IN THE WORKING CYLINDERS OF HIGH-PRESSURE COMPRESSORS OR PUMPS
A device for centrally guiding the working piston in the working cylinders of high-pressure compressors or pumps, wherein the faces of the working cylinders are releasably fitted to a lantern which...
|
|
|
3722698 |
CIRCULAR CLARIFIER MECHANISM
Apparatus for treating a liquid having settleable (sludge) and floating (scum) material therein to provide a clarified liquid, said apparatus including a cylindrical tank having a rotating...
|
|
|
3619084 |
WATER SUPPLY AND PUMP FOR FOUNTAINS
A water supply and pump for fountains is disclosed which includes a cylindrical container for holding the water supply, pump means for moving the water supply from the container to a fountain and...
|
|
|
3234880 |
Scum skimming and sludge pumping device
|
|
|
3151560 |
Pumping system or apparatus for deep wells
|
|
|
3115279 |
Apparatus for conveying materials
|
|
|
3045428 |
Vortex gas turbine
|
|
|
3016833 |
Apparatus for and method of producing heavy oil
|
|
|
2945447 |
Hydraulic ram
|
|
|
2907276 |
Deep well pump
|
|
|
2864317 |
Pumping device
|