Abstract: A filter screen assembly for removing particulate material from a slurry in a vessel. Mass producible slotted faced plates are assembled in pairs to enclose a chamber means between two slotted faces, an apertured edge and three closed edges mounted on a collector tube with the chamber in communication with the bore of the tube through said apertured edge, one end of the tube being closed and the other end being in communication with an intake port of a pump and said chambers. A filter media envelopes assembled pairs of slotted faced plates and the portion of the collector tube they are mounted on, while the other portion of the collector tube projects from an opening in said envelope and is sealingly engaged by a collar portion of the media secured against the collector tube. Reduced pressure impressed on the interior of the collector tube causes a slurry of liquid and particulate no greater than a predetermined size to be drawn through the media and slots in the plates.

Abstract: A water purification system includes a settling tank to allow small particulate material to settle on the bottom of a conical section. The liquid from the bottom of the tank is pulled to the top of a drum bagger which is a depressurized filtration apparatus. The drum bagger includes a filter bag separated from the outer walls of a drum and a vacuum source at the bottom of the drum adapted to suck liquid from the bottom of the drum. The vacuum source is an eductor which creates a vacuum by pumping liquid through the eductor either to a holding tank or back to the settling tank. This drum bagger separates the liquid from solid material and can even dry the solid material reducing disposal costs.

Abstract: A filter screen assembly for removing particulate material from a slurry. The assembly includes filter media for accumulating particulate of larger than predetermined size as filter cake exteriorly of plates having a plurality of slots therein. A hook member along an edge of each of the plates engages a tubular distributor having slots therealong. Each of the slots of the tubular distributor receives the hook member of one of the plates so that the plates are mounted on the tubular distributor. Other edges of the plates are connected to form chamber means therebetween. The chamber means communicates with the interior of the tubular distributor. A reduced pressure is impressed on the interior of the tubular distributor to cause liquid of the slurry to be drawn through the slots in the plates so that the particular material collects on the outside of the plates.

Abstract: A suction apparatus useful as a vacuum pump, aerator or the like comprises a fluid inlet housing having a nozzle support plate which includes a plurality of nozzles having a discharge outlet located within a suction chamber. These nozzles each align with the passageway of a hollow suction tube having an inlet within the suction chamber and an outlet spaced from a deflector plate. A fluid such as liquid is ejected from the discharge outlet of the nozzles and in the course of passage into the suction tubes a negative pressure is created within the suction chamber which draws a second fluid such as air through the suction chamber and into the passageway of the suction tubes for combination with the liquid therein forming a combined liquid-gas fluid stream.

Abstract: A centrifuge system for removing impurities from metal working coolant. The centrifuge of the system includes a liquid inlet, a first liquid outlet for high density liquid, a second liquid outlet for low density liquid, a discharge means for a shoot of particulate material, and a pressure port for receiving liquid under pressure to cause the shoot. A line receives high density liquid from the first liquid outlet. The line discharges into a tank. A branch line connects the line to the pressure port. A valve in the line can stop flow to the tank. When the valve is closed, pressure at the pressure port is increased to cause the shoot.

Abstract: A water distillation system which includes a storage tank for impure water and a storage tank for distilled water. Impure water is pumped through a heater to an evaporator. Impure water is also pumped through an impure water jet ejector. Distilled water is pumped through a distilled water jet ejector. The impure water jet ejector withdraws water from the bottom of the evaporator. The distilled water jet ejector withdraws water vapor from the top of the evaporator. Distilled water from the distilled water jet ejector passes through a heat exchanger in the impure water tank to heat input water. Impure water from the impure water jet ejector passes through a heat exchanger in the distilled water tank to cool the distilled water.

Abstract: A device for removing water from hydraulic fluid of a machine tool having a coolant system. The hydraulic fluid is passed through a tower to be exposed to a vacuum inside the tower. A first jet ejector is powered by coolant from a coolant circulating pump and draws a vacuum on an upper portion of the tower. A second jet ejector is powered by hydraulic fluid from a hydraulic fluid circulating pump and draws hydraulic fluid from a lower end of the tower. The ejectors impress a vacuum on the interior of the tower to cause vaporization of water carried by the hydraulic fluid and the water is returned to the coolant system through the first ejector.