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5968371 |
Lubricant circulation diagnostic and modeling system
A lubricant filtering and monitoring system and method is provided for a lubricant circulation system circulating lubricant through a filter to a lubricated component. A combination of sensors...
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5954971 |
Pumped-filter blood-processing apparatus and methods
Automated filtration of whole blood or blood components is accomplished in a manner that ensures consistent flow or pressure characteristics through the filter. A feedback circuit monitors pressure...
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5942121 |
Method and apparatus for filtering, degassing, dehydrating and removing products of ageing in petroleum oils
The invention relates to separating different substances, more concretely, to a method and apparatus for filters, degassing, dehydrating and removing products of ageing in insulating and other...
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5922194 |
Filter changing device for plastics processing plants
In a filter changing device with a flow path for the plastic in which one two or more filters can be inserted into the flow path as desired, the invention proposes to fit the filter support in such...
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5914048 |
Adjustable control valve system for rotating disc filter and method of operating the system
A control system for the vacuum cut-off valve of a rotating disc or drum filter is provided. The control system includes an actuator that is connected to the vacuum cut-off valve for adjusting the...
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5914033 |
Insert for a pressure transducer within a medical treatment apparatus
Removable inserts are disclosed for positioning within a dialysis machine in order to connect a pressure transducer to external apparatus such as a drip chamber. The removable insert comprises a...
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5910252 |
Technique for extracorporeal treatment of blood
Blood from a patient is treated extracorporeally by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary...
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5888381 |
Water filter with pressure actuated flow monitor
A faucet mounted water filtration system with a filter life monitor includes a filter housing with a flexible cap which deflects upon introduction of water into the housing. The deflection of the...
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5888401 |
Method and apparatus for reducing membrane fouling
The present invention is directed, among other things, to methods for reducing fouling of a separation membrane having a concentrate side subject to a concentrate pressure (Pc) and a permeate side...
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5885445 |
Belt press for dewatering sludge
This invention relates to a belt press for dewatering sludge, such as sewage sludge. The press includes a camera to monitor physical operation of a gravity belt section of the press. A numerical...
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5879545 |
Cyclonic filter assembly
A compact cyclonic filter assembly used for separating unwanted debris from a fluid. The cyclonic filter assembly uses the centrifugal forces to separate large pieces of debris from the fluid and a...
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5879544 |
Differential pressure indicator
A differential pressure indicator has a piston across which inlet and outlet pressures are applied with a spring preventing movement of the piston until a predetermined differential pressure is...
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5876611 |
Intraoperative blood salvaging system and method
An apparatus is disclosed for salvaging a patient's own blood during intraoperative surgical procedures and reinfusing the blood, washed and filtered, to the patient substantially continuously,...
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5871639 |
Impurity filtration system for drinking water and monitoring device therefor
A monitoring device for an impurity filtration system of drinking water comprising a microprocessor that controls the overall operations of the monitoring system, a LCD indicating circuit that...
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5868935 |
Method and apparatus for extraction and recovery of ions from solutions
A novel hollow fiber membrane-based synergistic extraction technique has been developed for removal and recovery of individual heavy metals from aqueous streams. This technique has a number of...
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5865991 |
Monitoring system for a drinking water purification system
A monitoring device for a drinking water purification system comprising a microprocessor that controls the overall operations of the monitoring system, a LCD indicating circuit that relates...
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5858224 |
Filter with pressure sensor mounted in housing end
A fluid filter (10) includes a housing (14), a mounting head (16), a filter element (34), and a pressure sensor (54) mounted to the housing (14) and having a high pressure port (58) communicating...
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5845597 |
Separation medium efficiency indicator
An efficiency indicator for a separation system, such as a water filter, wherein a first volume of fluid is exposed, under a first pressure, to a separation medium and a second volume of fluid is...
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5843379 |
Sampling device for a chemical analysis apparatus
A sampling means of a chemical analysis apparatus includes a membrane, which is attached to a membrane carrier, which has an inlet passage to the side of the carrier facing the membrane and a...
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5824229 |
Filtration of rolling solutions
Rolling solutions used in cold rolling are pressurized and filtered at working temperature using a filter of the scanning flush type in which flushing nozzles exhausting to a low pressure zone are...
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5804081 |
Wastewater treatment
A wastewater treatment system has been created in which water to be treated is moved into a treatment vessel without pumping action of a pump. Such movement is facilitated by creating and, in some...
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5792367 |
System and method for monitoring a flow of dialysis fluid in a dialysis machine
Apparatus for monitoring flow of a dialysis fluid through a dialyzer is disclosed including a computer for calculating the flow rate of the dialysis fluid into and out of the dialyzer based on the...
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5772867 |
Fluid filtering machine with filtering membrane controlled by PLC
A fluid filtering machine is provided with a filtering membrane made up of filtering substance that collects on a filtering core in a filtering tank and is controlled by a programmable logic...
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5762782 |
Water treatment for dialysate preparation
Water treatment and pretreatment methods and processes for use in a dialysate preparation machine are described. In one aspect, water is passed through a first filter having chlorine removal...
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5762791 |
Systems for separating high hematocrit red blood cell concentrations
Blood separation systems and methods utilize a membrane separation device comprising a gap between a microporous membrane and a surface facing the microporous membrane, one of the microporous...
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5755968 |
Dialysis system and method for removing toxic matter from the serum of the large intestine
A dialysis system and method for removing toxic matter from the large intestine comprises an input tube, an output tube concentric with the input tube, both of which tubes are to be inserted in the...
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5741416 |
Water purification system having plural pairs of filters and an ozone contact chamber
The present invention provides a self-contained, self-monitoring water purification system able to be transported to and used in remote areas. The system processes contaminated water through a...
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5733441 |
Pre-wet system for a filter
The present invention is a prewet system for a filter. The present invention includes a power controller. A first container is used for storing iso-propyl alcohol liquid. An air pump is connected...
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5730861 |
Swimming pool control system
A swimming pool control system automatically controls the daily maintenance functions of a swimming pool. The control system actively monitors system conditions, makes adjustments for abnormal...
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5725768 |
Granulocyte removing apparatus
Granulocytes can be removed from blood by bringing the blood into contact with a carrier having higher affinity to granulocytes than to lymphocytes. the carrier may preferably be a substance having...
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5718822 |
Differential pressure apparatus for detecting accumulation of particulates in a filter
An apparatus and a method are provided for detecting accumulation of particulates in a fluid stream. A differential pressure switch is incorporated in the apparatus for detecting changes in...
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5702592 |
Filter monitoring device which monitors differential pressure and temperature
A filter monitoring device for use in monitoring the purity of a fluid through a filter includes a pressure differential sensing device in communication with the filter. The filter monitoring...
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5702597 |
Device for preparing a treatment liquid by filtration
A device for treatment of blood by extracorporeal circulation comprises a dialysis liquid circuit having a supply tube (9a, 9b) on which is arranged a filter (21) having a first chamber and a...
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5674397 |
Debubblers
Apparatus for removing air bubbles from blood and from a dialysate solution are described herein. In one cassette-style embodiment of a blood debubbler, the debubbler includes front and rear...
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5674380 |
Oil filter and filter blockage alarming system
A lubricating oil filter and filter blockage alarm system for internal combustion engines. At least one filter element is disposed within a housing. A condition representing a degree of blockage of...
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5674404 |
Filter integrity test method for dialysis machines
A method is described for automatically testing the integrity of a dialyzer filter within a dialysis machine. The method consists of substantially removing fluids which may be present from the...
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5667670 |
Wastewater effluent management system using a sand filter
A system for controlling effluent discharge having an inlet for passing wastewater, a filter connected to the inlet for removing solids from the wastewater, a filtered water retaining tank...
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5665904 |
Osmometric device and process for determining the analyte content of a solution of mixed substances
In an osmometric measurement device and a method for determining the content of an analyte in a solution of a mixture of substances including the analyte, the mixture solution is admitted to a...
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5662793 |
Valve assembly of a reverse osmosis water purification system
A valve assembly for a reverse osmosis water purifier system that contains all of the control and check valves required for the system. The valve assembly is operative to provide squeeze water...
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5660722 |
Hemo(dia)filtration apparatus and filtrate flow regulator
Described is a hemo(dia)filtration apparatus (10) with two blood filters (60) and (12) connected in series and a sterile filter (38) connected upstream thereof. The first chambers (64) and (14) and...
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5660723 |
Water conserving cooling tower system
A water treatment device for use with cooling towers and heat exchangers includes a pump in fluid communication with the heat exchanger to pump a stream of liquid from the heat exchanger. A...
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5653889 |
Process for filtering polyamide oligomers from aqueous streams containing the same
A filter element surface is coated with particulate polyamide which serves as a filter aid to trap polyamide oligomers suspended in water. The particulate polyamide is preferably coated onto a...
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RE35560 |
Fluid strainer and method of converting the same between motorized and manual modes with pressure-sensitive switch
An improved fluid-strainer is provided which makes provision for improved methods of converting the same between motorized and manual modes. Included in the fluid strainer is a gear motor housing...
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5641405 |
Method and apparatus for purified pulse peritoneal dialysis using a single pump
The present invention provides an improved peritoneal dialysis method and system. The system comprises a single catheter that is placed in the patient, a source of dialysate, and a diatyzer in...
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5637208 |
Solvent pumping system for chromatography with switching-valve
A pumping system for continuously delivering fluid at a selected flow rate to a receiving system. The system includes at least a first and a second pumping unit, each of the individual units...
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5635074 |
Methods and systems for controlling a continuous medium filtration system
A plurality of sensors sense a plurality of parameters including flow rate of a slurry being filtered sensed along a filtration medium and differential pressure across the medium which characterize...
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5632902 |
Filtering method and apparatus including valves with valve plugs of a cooled fluid substance
Filtering apparatus including two or more passages acting in parallel, each having an extended filter which passes through inlet and outlet ports preferably sealed by substantially solidified plugs...
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5624551 |
Hydraulic safety circuit for a hemodialysis apparatus
A hemodialysis apparatus is supplied with dialysis fluid or a dialysis fluid component through a supply loop conduit 12. A shut-off device 22, such as a magnetic valve, is arranged between the...
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5620593 |
Multi-stage in-well aerator
An in-well system for simultaneously treating and extracting groundwater by injecting compressed gas through the groundwater in multiple successive stages as it is pumped out of a well. The process...
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5597601 |
Cooking oil filtering apparatus and process employing cylindrical sintered metal filters
Improved apparatus and process for filtering cooking oil of the type used in deep fat fryers such as are used in restaurants and bakeries. Full cooking temperature oil from the fryer vat is...
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