Abstract: Disclosed is a displacement pump especially suited for use in very small well bores. The pump includes a piston working in a cylinder, driven by a rotating cam shaft having closed loop cams for effecting reciprocation of the piston. The rotating cam shaft carries spool valves for positive control of liquid flow into and out of the pumping chambers. Also disclosed is a transmission mechanism especially suitable for use in reducing the speed of an electric motor power source to a level suitable for driving the cam shaft. The pump includes a small diameter high speed electric motor, on which is mounted the transmission mechanism, which in turn carries the pumping mechanism. An electrical power conduit runs through the pumping mechanism and transmission mechanism to the motor.

Abstract: A valve means for changing over concrete material passage is disclosed, wherein a rotational frusto-conical valve body is provided in a hopper. The interior of the valve body is provided with curved circular concrete material intake and discharge passages, the openings of which are alternatingly communicated with openings of double cylinders having pistons therein by rotating the valve body. The other end of the discharge passage is rotatably connected to a pipe to supply the concrete material into the outside of the hopper.

Abstract: Time delay valve means are provided in a conduit through which an actuating vacuum signal is supplied to a valve for controlling the recirculation of exhaust gases in an internal combustion engine. The time delay valve means include a pressure responsive vacuum relay valve for opening and closing the conduit in response to an increase in engine intake manifold vacuum to a predetermined level and an orifice for increasing the time required after engine starting for the predetermined level of intake manifold vacuum to be applied to the vacuum relay valve.

Abstract: A submersible pump apparatus including a fluid distribution system for injection of fluids into one or more areas adjacent the pump. In one embodiment an apertured ring directs water downwardly onto the motor case for cooling the pump, permitting the pump to run in an unsubmerged condition and thereby pump down to a lower fluid level, and stripping away debris, grease, and other unwanted material collections. Another apertured ring can be used to spray water upwardly against the motor case or against any surrounding sump walls to roil and mix the material to be pumped, such as in sewage, chemical, or industrial waste applications. The apertured ring may carry fluid for floating away accumulated grease or debris on the motor case, or may be used to apply foam or carbon dioxide to the pump in the event of a fire.

Abstract: Blowing apparatus suspensible from one's shoulder is provided with an axial blower having the rotor thereof coupled with the crankshaft of a gasoline engine. The stator blades of the blower are removably fixed peripherally to the housing of blower and partially to the casing of the engine. The engine does not require a cooling fan because it is sufficiently cooled by the suction-air flowing around. Further an independent fuel tank is not required because of a hollow guide disposed in front of the rotor and serving as a fuel storage. The nozzle, flexible tube, and the discharge housing of the blower can be made of synthetic plastics in the form of a single annular body without any connecting means. Consequently, the apparatus of the present invention is remarkably light and compact.

Abstract: A hermetic refrigerant compressor includes an electric motor mounted within a sealed housing with a crankshaft extending vertically from the motor to connect with a plurality of radially disposed compressor pistons. The lower end portion of the crankshaft extends into a sump of lubricant collected in the lower end of the housing and first and second stage pumping means are formed in the lower end of the housing to pump lubricant to upper and lower bearings which support the crankshaft within the housing. A vent communicates with the inlet to the first stage pumping means for venting flashed refrigerant gases from the system before the lubricant enters the first stage pumping means. In addition, a filter may be provided for continuously cleaning some of the lubricant discharged from the first stage pumping means without interfering with the flow of lubricant from the first stage pumping means to the second stage pumping means.

Abstract: A method and a device for transport of manure under pressure through a pipe, including a mainly cylindrical housing with a piston member having a circle segment cross-section, said piston member being arranged to perform a rotary reciprocal movement in forward and reverse direction and to move manure from an inlet to an outlet communicating with a transport pipe, both sides of the piston member acting as pressure surfaces and utilized alternately depending on direction of rotation, said pressure surfaces interworking with a disc shaped valve member extending tangentially from the axis of rotation, arranged to perform a pendular movement and alternately take up contact with one of two opposed edge portions in the outlet.

Abstract: Efficient downhole cooling of the electric pump motor, motor protector, and thrust bearing of a submergible pump assembly in a high temperature environment is accomplished without significant modification of the pump assembly itself. Coolant flows through an insulated shroud as a high velocity annular fluid sheet surrounding the components to be cooled. In a closed loop system, coolant from a heat exchanger is supplied to the shroud via insulated supply tubing, which contains a cable for energizing the motor, is injected into the shroud by a coolant discharge head from which the pump assembly is suspended, and returns to the heat exchanger via insulated return tubing. The walls of the shroud and tubing include expansion element which accommodate the difference between interior and exterior temperatures.

Abstract: A pumping apparatus actuated by waves in a large body of water for pumping water to a remote location. The pumping apparatus is bouyant and comprises a barge structure carrying a compression system having a plurality of pumping units disposed substantially colinearly along the length of the barge structure. The pumping units are actuated by float members which rise and fall responsive to waves in the water body in which the pumping apparatus is disposed. To this end, each of the float members is connected to a piston head of one of the pumping units through a linkage system. Actuation of the piston heads serves to force water under pressure through a suitable discharge pipe to a remote location such as a reservoir where the water can be converted into a usable form of energy.

Abstract: A turbo-fluid device in the form of a package, in which a heat exchanger used as a cooler for a turbo-compressor, desiccator, or turbo-refrigerator; or a heater for a turbo-generator is formed in an annular form, while there are housed in the interior of the annular heat exchanger an electric motor or generator, transmission, compressor and/or turbine, oil feed device and other accessories, thereby decreasing sound level and reducing the size and the weight of the device.

Abstract: An adjustable coupling for operatively connecting the shaft of a low-pressure deep well pump to the shaft of a high-pressure booster pump whereby both pumps may be driven by a common prime mover.

Abstract: A variable dosing piston pump having a cylinder made of two parts, the fixed part through which the piston rod extends and a part adapted to be inserted more or less within said fixed part and means to fix said parts relative to each other, an outlet in said fixed part for the dosed liquid, an inlet controlled by a non-return valve in said movable part, the piston having a diameter adapted to that of the movable part and comprising a non-return valve. By changing the positions of the two cylinder parts relative each other, and retaining the same piston movement, the effective stroke of the piston is changed, thereby changing the dosing.

Abstract: The invention relates to an encapsulated motor compressor assembly for refrigerators. An integrated motor compressor unit is resiliently supported inside the casing of the assembly on helical springs which engage the lower side of the stator laminations. The points of spring engagement are in a lower plane in which it is desired to prevent or minimize radial deflection of the motor compressor unit. This is accomplished by placing certain constraints on the design of the vertical motor shaft which has the usual eccentric crank for driving the compressor piston and a compensating weight for balancing the centrifugal effects of the crank. It was discovered that certain relationships between (1) the mass of the compensating weight and the spacing of its center of gravity from the shaft axis, and (2) the mass of the eccentric crank and the spacing of its center of gravity from the shaft axis, are in fact effective to minimize radial deflection of the motor compressor unit in the above referred to lower plane.

Abstract: A peristaltic pump comprises two concentric cylinders at least one of which includes a plurality of piezoelectric elements which are successively electrically energized to produce moving seals in the region between the cylinders.

Abstract: A pump for use in a doll having a transparent front torso through which is viewed simulated internal organs, the pump being connected to coiled transparent tubing for passage therethrough of a liquid-air mixture. The pump has a main body portion with a generally cylindrical recess having a circular surface with a coaxial annular groove in the surface and an arcuate groove disposed radially outwardly from the annular groove. An inlet aperture is disposed radially outwardly from the annular groove and is in fluid communication therewith while an outlet aperture is in fluid communication with the arcuate groove with the two grooves being interconnected by a groove segment. A one-piece diaphragm is provided with a flange adapted to sealingly engage the surface, the diaphragm having a deformable dome-shaped portion extending outwardly from the surfce to form a chamber, the diaphragm having a skirt portion fitting within the annular groove with the skirt having a cutaway portion in proximity to the groove segment.

Abstract: An automatic locking system is provided for securing a submersible pump to vertical guide wires. The pump is automatically locked to the wires upon lowering of the pump and released upon raising the pump. Stationary cams in the pumping station actuate the locking system. The system assures locking when the pump is lowered and eliminates the need for manual unlocking by the serviceman when raised.

Abstract: A casing pressured operated, variable orifice valve is employed as the operating valve in a single point injection well assembly with tubing pressure (fluid) operated unloading valves acting above the operating valve to provide a continuous flow system. The operating valve includes a throttling range which extends between optimum injection gas pressure levels based on the amount of injection gas pressure available at the well head to thereby increase the overall efficiency of the system. The variable orifice valve includes a pressure charged bellows and a coil spring in series to produce a linear resultant load rate which in turn cooperates with contoured closure surfaces in the valve to produce a linear relationship between orifice size and injection gas pressure. Gas is thus injected into the production column or tubing at a rate which is linearly related primarily to the casing pressure with the throttling range of the operating valve producing a broad response in the gas injection rate.

Abstract: A compact fluid compressor embodying a housing formed of a plurality of stacked sections with relatively large fluid flow passageways cast therein and wherein the overall outline of the compressor's housing is substantially rectangular. This arrangement eliminates numerous external piping and the connections needed therefor, found in prior art compressors, and provides a lightweight and good appearing compressor as well as a highly efficient one. The small size, considering the horse power thereof, is due in part to the utilization therein of the Braun mechanism, a counterbalancing and anti-vibration drive mechanism between the power means and the compressor piston or pistons, which mechanism is fully disclosed in Braun U.S. Pat. No. 3,861,222. Even in the two-stage embodiment of the compressor, an inter-cooler, an after-cooler and an inlet fluid (air) filter lie within the above-mentioned outline.

Abstract: A basin for containing water is provided and a heavy buoyant body is guidingly received in the basin for back and forth reciprocal movement therein and also raising and lowering within the basin in response to changes in the elevation of the water level therein. One end of the basin opens toward and in opposition to a source of wave movement and the body is drivingly connected to a rotary output shaft to be driven in response to back and forth reciprocal movement of the body. The output shaft includes eccentric crankpin portions and connecting rods operably connect the reciprocal body to the crankpin portions of the output shaft. The basin opens toward the source of wave movement through a straight channel having a wave modulating gate operatively associated therewith.

Abstract: Purging passages are machined or cast into the casing of a liquid ring compressor through which soluble or nonsoluble contaminants which may be present in the liquid ring may be removed from the compressor. These passages in single lobe pumps are located in the outer peripheral zones of the casing approximately 240.degree. from the pump land in the direction of rotation of the rotor in the area of the drive and idle ends of the rotor.