Abstract: A tool for cleaning debris from a wellbore comprises a rotational portion and a stationary portion. The rotational portion is configured to be coupled to a workstring disposed in the wellbore such that rotation of the workstring rotates the rotational portion. The stationary portion at least partially surrounds the rotational portion. The stationary portion is configured to remain stationary when the rotational portion and the workstring are rotated. The rotational portion and the stationary portion are shaped and configured such that, when the workstring is at least partially disposed in well fluid present in the wellbore, rotation of the rotational portion causes movement of well fluid such that well fluid flows into the workstring, thereby carrying debris from the wellbore into the workstring.

Abstract: A biphase conveyor of a mixture of fine solid components with pasty and liquid components based on the use of rotational and periodic inertial forces is described. In accordance with the present invention the conveyor comprises a mechanism which impresses on the identical rotor pair R1 and R2 a periodic oscillatory motion with identical frequency and with phase other than 90°. The oscillation mechanism can consist indifferently of a connecting rod & crank system or a rotating bearing with eccentric axis between two guides fastened to the rotor. On R1 is rigidly fastened a biphase circuit whose inlet E01 is connected with the feeder of the materials to be conveyed and the outlet U01 with the inlet E02 of an identical biphase circuit fastened on R2 whose outlet U02 is connected with the user. All this develops a resultant of continuous inertial forces with constant direction from E01 to U02 which causes the flow of the materials making up the mixture.

Abstract: The details necessary for embodying the present invention are: a supporting frame; two rotors; a system for the periodic alternating motion thereof with phases of 0° and 90°; two tubular 2-phase circuits (CB) consisting of two parallel identical tubes termed “active circuits” with an inlet and outlet tube at the connection points; starting from the inlet, where to each circuit is applied a one-way valve with the task of allowing only inlet of the liquid, the two circuits constituting the CB are wound one with right-hand direction and the other with left-hand direction; on each rotor an identical CB is fastened. The inlet of the first CB is connected with the feed source and the outlet with the inlet of the other CB, whose outlet is connected with the user. The connections of the 2-phase circuits are made with flexible tubes. With crankshaft rotation the two CBs develop a pressure differential and a continuous flow with valves constantly open.

Abstract: A swimming pool cleaning system 2 is provided which provides both water suction and compressed air to a pool cleaning device. A pump 20 draws water form a swimming pool P through the pool cleaning device, an attached vacuum hose 14 and a suction line 12. An air inlet port 10 enters the suction line 12 adjacent the pump 20. The pump 20 then compresses the air A and pumps the water to a higher pressure simultaneously. The pump 20 is followed by a main pool filter 40 in which the water is filtered and returned to the pool P and the compressed air A is separated. A compressed air outlet 50 draws the compressed air A out of the main pool filter 40 and delivers the compressed air A to the pool cleaning device along a compressed air supply line 58. The air inlet port 10 includes a hollow inner tube segment 60 partially surrounded by a resilient outer sleeve 70.

Abstract: A pumping system for water in a pit comprises a feeding unit to be installed above the ground and a suction ram assembly to be immerged into water partially filling the pit. The suction ram assembly has a ram valve (4a, 4b) and a foot valve (12, 13) which are connected to the feeding unit through the concentric arrangement of a feeding hose (1) and a riser pipe (2). The ram valve comprises two annular coaxial sleeve parts (4a, 4b) each having a valve seat (7, 8), and annularly surrounds the riser pipe (2). An electrolytical gas cushion vessel (17) having an electrode (18) is attached to the riser pipe (2) which forms an associated electrode. The vessel (17) also contains a float (21) which is connected to the ram valve (4a, 4b) over cables (22). The unit of the riser pipe (2), the ram valve (4a, 4b), the foot valve (12, 13) and the vessel (17) is plugged into a funnel-shaped sleeve (15) which is fixed to the feeding hose (1).

Abstract: A method and apparatus for ejecting fluids through use of a high pressure liquid motive fluid by forming hydraulic slugs from said motive fluid and conducting it through conventional ejection mechanisms, entraining a fluid which is to be ejected and depositing it into containment of user's choice. A pulser apparatus is employed which embodies the concept of abruptly starting and stopping high pressure motive flow, contemporaneously constricting the downstream flow through use of either inlet or instream interruption means, and entraining quanta of fluid to be ejected, said entrainment being the urging of said discrete quanta by the momentum of a series of hydraulic slugs formed by the aforementioned method.

Abstract: The present invention relates to improvements on an "inertia" type pumping system (actually using kinetic energy) including elimination of springs in the valves, include pressure dampening or cushioning means for dampening sharp liquid pressure rises inherent in an inertia type pump, and discharge of pumped fluid directly into a tank rather than through a circulation pump of the system, all of which results in longer pump life, less down time for repairs, smoother, quieter and more efficient operation, and avoids shutdown of the inertia pumping system by eliminating gas entering the circulation pump when pumping oil having entrained gas from a formation.