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4754639 |
Device for testing suspensions
Apparatus for evaluating physical properties of suspensions, particularly the tendency of the solid and fluid portions of a suspension to separate under pressure. The apparatus comprises a pressure...
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4740140 |
Pump having integral switch and bypass valve
To provide a filter bypass and indicator, in a pump having an inlet and an outlet with a filter therein, a bypass port is in communication with the outlet upstream of the filter. A bypass valve...
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4740313 |
Method of filtering using a rotating and oscillating spinner
A disposable diagnostic plasma filter dispenser includes a low cost disposable container and a rotor drive for rotationally energizing a rotor within the container. The disposable container is...
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4732671 |
Diesel fuel filter/water separator
A separating device for separating a pair of immiscible components from a fluid mixture, such as separating water from a diesel fuel oil/water mixture, includes a housing and a filter cartridge...
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4717472 |
Oil filter assembly having multiple removable filter members and cooling fins
A multi stage oil filter assembly is disclosed characterized by a housing including base and cover members and at least one intermediate member arranged between the base and cover members. A first...
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4708802 |
Apparatus for hemodiafiltration
An apparatus for hemodiafiltration that maintains the blood concentration of the patient relatively constant. A pump is connected to a branch off the external flow path of the dialysator which...
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4684460 |
Haemodialysis device automatically monitoring loss of weight
This invention relates to a haemodialysis device comprising a dialyzer, a reservoir of dialyzate, a cartridge for regenerating the dialyzate and a positive displacement pump with one rotor which...
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4685066 |
Contamination monitor and method
A contamination monitor for sensing particle contamination in a liquid system having a filter includes a sensor for measuring the pressure differential across the filter, a reference apparatus for...
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4681677 |
Water processor having automatic shutoff and bypass means
A water treatment or processor device for household use or commercial use (for example, in a restaurant) is provided with fail-safe features in accordance with this invention to shut the treatment...
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4659483 |
Method of and a means for feeding material to a filtering apparatus
A filter press (10) is supplied with material to be filtered by a filling pump (20) and a high pressure pump (26). Both pumps are connected in parallel and designed as eccentric worm pumps. The...
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4655908 |
Device for cleaning liquids in sand filters
The present invention relates to a device for cleaning of liquids in sand filters of the up-stream type. The device according to the invention is characterized in that a sand filter bed (5) is...
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4654140 |
Pressure indicating device for indicating clogging condition of a filter
A differential pressure indicator is provided for detecting and indicating a clogging condition of a filter element and subsequently an opening condition of a by-pass valve. The indicator also...
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4651670 |
Pressure indicating device
A device for indicating differential pressures between first and second pressure sources comprising a housing with a bore and a piston member slidably disposed within the bore and dividing the bore...
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4650571 |
Automatic indexer for industrial filters
In an industrial filter apparatus having a tank with an inlet receiving contaminated effluent from an industrial washing device and a discharge outlet connected to the washing device for...
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4648866 |
Process/apparatus for the withdrawal/return of body fluids
Process/apparatus for the processing of body fluids, advantageously comprising plasmapheresis technique for the fractionation of whole blood, features (i) means, e.g., a common blood transfusion...
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4647378 |
Blood dialyzing method and apparatus
A blood dialyzing apparatus having a dialyzer with blood and dialysate chambers defined therein comprises a blood pump for pumping the blood from a cannula, pierced in the patient's A-V fistula,...
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4629557 |
Pump test ring, cover and strainer and method of providing a pressure-testable pump
A test ring for a pump strainer is threadedly attached to both a housing and a cover of the strainer in such a manner that the cover can withstand relatively high internal pressure. When the test...
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4626344 |
Oil filter restriction sensor
An oil filter restriction sensor device for warning the operator of an internal combustion engine when the engine oil filter has become restricted and requires replacement comprising a sensor body...
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4623450 |
Artificial kidney
An artificial kidney comprising a haemodialyser (a) associated with and preferably integrated into a common unit D adapted to be connected simultaneously to a patient P, to a container 34 of fresh...
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4617115 |
Artificial kidney with disposable dialysis liquid circuit
An artificial kidney comprising a haemodialyser connected to a dialysis liquid circuit has the dialysis liquid circuit designed and simplified so as to be entirely disposable. Preferably, the...
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4614590 |
Dialysis apparatus and method for its control
A dialysis apparatus utilizes an expansion chamber in parallel with a pump from which the chamber receives blood via a valve. During the return flow phase the pump rotates in the same direction;...
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4582612 |
Sewage sludge treatment apparatus
The present invention relates to an apparatus for treating sewage sludge in which the sludge is conveyed to a vessel having an oxygen-rich atmosphere. The sludge is channelled through a first...
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4581133 |
Solvent reclamation apparatus
An apparatus (10) for use with a dry cleaning system having a filter for filtering the dirty solvent comprises a first pressure vessel (28) for vaporizing the filtered solvent and a second pressure...
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4578186 |
Swimming pool filter system
A swimming pool filter system is comprised of a pump, a filter and a water conduit means for hydraulically connecting the pump and filter in a hydraulic loop with a swimming pool. The filter is a...
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4565638 |
Method for purifying ink
Excess or unused ink that is recovered from a printing process and which contains fibrous impurities is purified by mixing the recovered ink with virgin ink, heating the mixture to decrease the...
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4556484 |
Water filters
A water filter connects into a waterline which feeds a faucet separate from the filter. A filter cartridge is seated within a canister and has an inlet and an outlet. The canister is removably...
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4534865 |
Method and apparatus for reducing levels of organics in liquids
Apparatus for reducing levels of organic contaminants present in water or other fluid. The apparatus includes a plurality of spaced activated carbon beds and a bed of cross-linked organic polymer...
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4522712 |
Double-ended, spin-on fuel water separator
A spin on fuel water separator having a filter element attached within an electrically grounded housing, means are provided for supplying an electrical potential to the filter element and the...
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4515690 |
Fuel supply system for diesel engines
An apparatus is provided informing when a filter located in a fuel passage between a fuel tank and a fuel injection pump has clogged a predetermined amount. The apparatus is responsive to fuel...
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4514295 |
Dialysis apparatus
A blood accumulator for use in single needle dialysis systems is provided with elastic walls so that expansion of the accumulator in an outward direction may take place and in the filled condition,...
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4512882 |
Single-ended, spin-on fuel water separator
A spin on fuel water separator having a filter element attached within an electrically grounded housing, a circuit (50) is provided for supplying an electrical potential to the filter element and...
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4501583 |
Hemodialysis access monitors
A monitoring arrangement is provided for detecting for extreme pressure conditions in blood tubing lines of a hemodialysis system. The arrangement includes a first pushbutton switch and a pivoted...
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4498495 |
Magnetic differential pressure valve with an indicator showing when valve has opened or closed
A magnetic differential pressure valve is provided, having an indicator showing when the valve has moved into one of the open and closed positions, comprising a housing including a valve seat;...
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4496458 |
Dialysis apparatus and technique
Dialysis apparatus is arranged to enable convenient measuring of ultrafiltration rate from liquid, such as blood, that is to be dialyzed. Dialyzer can have, downstream of a dialysis chamber, a...
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4487699 |
Sewage sludge treatment apparatus and process
The present invention relates to an apparatus and process for treating sewage sludge in which the sludge preferably has its pH adjusted to an acidic range. Then the sludge is conveyed to a vessel...
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4446017 |
Oil filter assembly having a removable filter member
An oil filter assembly is disclosed, characterized by a sectional housing and a removable filter member arranged therein. The housing includes base and cover members having adjacent planar faces...
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4444597 |
Automated cleaning method for dialyzers
A fully automated method and apparatus for cleaning and disinfecting blood dialyzers for reuse. An identification is assigned to the particular dialyzer being cleaned and is stored in machine...
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4443333 |
Portable dialysis system and pump therefor
A system for dialyzing blood in which blood is passed through an exchange station to transfer toxic material across a semipermeable membrane to a dialyzate. Pump means are disclosed for...
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4439315 |
Methane generator
A biogas generator which includes a medium conducive to the growing of plants that are floating and of the family that includes water hyacinths, lily pads, and elodea; a conveyor for transferring...
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4436620 |
Integral hydraulic circuit for hemodialysis apparatus
A one-piece hydraulic circuit is provided for use with a blood dialyzer for performing functions currently performed with a multiplicity of blood inlet and outlet sets and related items comprising...
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4426284 |
Filter condition indicator
A filter comprising a filter head, a canister secured to the filter head and a tubular filter within the canister. The filter head has inlet and outlet ports for connecting into a hydraulic...
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4423751 |
Bypass valve and alarm assembly
A "snap action" early warning bypass valve assembly (2), responsive to fluid pressure differentials and/or low pressure, functions as both an electrical switch to provide an indication of low...
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4412916 |
Airless artificial kidney assembly
The invention provides an artificial kidney extracorporeal circuit assembly including an artificial kidney having detachably attached multifunctional subassembly means for automatically venting gas...
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4374731 |
Method and apparatus for obtaining a desired rate of plasma collection from a membrane plasmapheresis filter
A method and apparatus are described for obtaining a desired rate of plasma collection from a membrane plasmapheresis filter having a blood inlet, a blood outlet, a plasma outlet, outer members and...
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4372848 |
Oil filter apparatus
An oil filter apparatus including a disc element (16) operable to be releasably mounted between a conventional oil filter cannister (14) and a machine (10) to be lubricated. The disc element has...
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4366837 |
Early warning bypass valve assembly
A "snap action" early warning bypass valve assembly (2) responsive to fluid pressure differentials functions as both an electrical switch to provide an indication at impending fluid bypass and as a...
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4348278 |
Settlement tank condition monitoring system
A settlement tank wherein suspended solids or denser fluids are separated from a lighter parent liquid by gravitational settlement is provided with a monitoring arrangement to permit determination...
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4343697 |
Combined hydraulic fluid reservoir and return fluid filter support structure
A pair of return fluid filters are supported within a main cavity of a hydraulic fluid reservoir for receiving fluid from the bottoms of respective return fluid cavities defined by a housing fixed...
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4332679 |
Device for indicating the degree of exhaustion of an adsorption filter
A filtering apparatus for indicating the degree of exhaustion of an adsorption filter which includes a mechanical filter and a pressure meter for detecting the difference in pressure between a...
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4325824 |
Unhooking dirty filter alarm
An unhooking dirty filter alarm for a filter comprising a filter head, canister and tubular filter element. The filter head has a bypass valve therein. Linkages to the outside of the filter element...
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