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3763376 |
DETECTOR DEVICE FOR HAEMODIALYSIS UNIT
The invention relates to a device for detecting blood loss from an electrolytic solution used for haemodialysis. The device comprises a cylindrical chamber having a window in the lower part of each...
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3760829 |
AUTOMATIC CONTROL SYSTEM FOR THE SAFE AND ECONOMICAL REMOVAL OF NH3 BY BREAKPOINT CHLORINATION
An automatic system for controlling the chlorine feed in the breakpoint chlorination process at the optimum dose level, under the conditions of varying ammonia concentration and process flow rates...
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3756408 |
SEPARATION SYSTEM
An improved separation system for reclaiming pollutant material from a waste or rinse solution including a solvent separating means and a concentrate valve and valve control means for controlling...
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3743095 |
VORTEX FLOW SYSTEM FOR SEPARATING OIL FROM AN OIL-WATER MIXTURE
A vortex separator is used to separate oil from an oil-water mixture which results, for example, from oil spills on a body of water. The separated oil may be stored or otherwise disposed of, while...
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3731522 |
METHOD AND APPARATUS FOR DETERMINING OXYGEN CONSUMPTION RATE IN SEWAGE
A continuous respirometer apparatus for measuring the rate at which oxygen in a fluid, such as sewage, is consumed to thereby obtain an indication of the respiration rate of the bacterial...
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3722680 |
HEMODIALYSIS APPARATUS
Dialysate delivery apparatus for use with a hemodialyzer provided with a dialysate inlet and a dialysate outlet comprises conduit means coupled to the inlet and outlet of the hemodialyzer as well...
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3716485 |
PROCESS AND APPARATUS FOR DESTROYING HEXAVALENT CHROMIUM IN SOLUTION
An apparatus and method for precipitating and/or destroying a chemical material comprising a source of material connected in series with an acidification unit, a reduction unit, and a pH adjustment...
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3715308 |
APPARATUS AND PROCESS FOR TREATING TOXIC WASTE MATERIALS
An apparatus and method for continuously treating and destroying toxic constituents in effluent waste streams from metal finishing processes such as aqueous rinse solutions containing dissolved...
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3682305 |
DECANTING AND FILLING APPARATUS
An apparatus for decanting liquid from, and introducing liquid to a vessel such as a centrifuge tube has an upright hollow probe or pipet which is connected to a vertical drive and can ride up and...
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3677406 |
FILTER AID SLURRY METERING PROCESS
A system for measuring the solids content on a dry basis in a filter aid water slurry and pumping the filter aid back into a filter is described herein. The system circulates the filter aid water...
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3676336 |
METHOD AND APPARATUS FOR WATER SOFTENING
The invention provides an improved method and apparatus for controlling the provision of regenerated resin to an ion-exchange column. In carrying out the method, the conductivity of the raw water...
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3674145 |
METHOD AND APPARATUS FOR CLARIFYING LIQUIDS
Liquids containing contaminating particles of various sizes are treated in a multi-stage system wherein the liquid is delivered into the rear end of a first stage of a tank divided longitudinally...
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3668837 |
SEPARATOR OF THE SEMIPERMEABLE MEMBRANE TYPE
A separator is provided that is particularly suited for separating gases from liquids by selective diffusion through a semipermeable membrane. The membrane forms an enclosure into which diffusate...
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3664951 |
APPARATUS AND PROCESS TO TREAT WASTE WATER FOR POLLUTION CONTROL AND INDUSTRIAL REUSE
Apparatus and process for removing colloidal, oxygen demanding and odor causing organic materials, inorganic materials and other pollutants from waste water is provided. The initial pH and...
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3659712 |
REMOVING DEEP SILT AND MUCK DEPOSITS
A method and apparatus for removing silt, muck and other deposits from a water covered basin whose bottom has been covered with a relatively thick deposit, involving the use of a submerged housing...
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3659711 |
DEVICE FOR GRAVIMETRIC SEPARATION OF GRANULAR OR PULVERULENT MATERIALS
A device for gravimetric separation of granular or pulverulent materials includes a means for creating a series of reciprocating pulsations in a fluid, either air, water or a dense liquid. This...
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3652861 |
APPARATUS FOR DETECTING THE HARDNESS LEVEL OF WATER
A control including a sampling means for periodically extracting a sample of water from a water system and a detection means for determining the hardness level of the sample. The sample is mixed...
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3652910 |
AUTOMATIC CONTROL DEVICE FOR THE REGENERATION OF ION-EXCHANGE RESINS
A device for automatically controlling the regeneration of an ion-exchange resin. Two pairs of electrodes are spaced in the resin, one above the other. A variation in capacitance or resistance...
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3622721 |
CONTROL DEVICE FOR ACTIVATING A SWITCH
A control device for activating a switch is disclosed. This device comprises a contractile sensing element sensitive to the concentration of ions in a body of water. The switch is activated in...
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3618767 |
PROCESS AND APPARATUS FOR CONTINUOUS LIQUID SAMPLING
Clear samples of fluids containing solids suspended therein are continuously taken without filter-clogging using a filter apparatus immersed in the suspension comprising a rotatable filter disk...
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3618769 |
APPARATUS FOR ION EXCHANGE PROCESS CONTROL
A method and apparatus for ion exchange process control which delivers a voltage proportional to the quotient of two resistances, a first resistance being measured between two electrodes disposed...
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3595252 |
APPARATUS FOR CONTROLLED WASHING BY DE-IONIZED HIGH-PURITY, RECIRCULATED WATER, PARTICULARLY ADAPTED FOR SCIENTIFIC GLASSWARE
Apparatus for controlled washing of scientific glassware, articles and materials, comprising an open-topped housing adapted to use the de-ionized water produced by one or more ion exchange columns...
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3557327 |
ION-CHANGE-RESPONSIVE SWITCH
A material, such as polymeric fibers, which change dimensionally in response to increases or decreases in ions such as calcium or magnesium are connected to a first member. A second member is...
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3541008 |
METHOD AND APPARATUS FOR NEUTRALIZING ACID WASTE WATER
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3531402 |
APPARATUS AND METHOD FOR REGENERATING A WATER SOFTENING SYSTEM
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3523891 |
ELECTROLYTIC SEWAGE TREATMENT SYSTEM AND PROCESS
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3522530 |
DEVICE FOR DETECTING QUANTITY OF WATER IN A LIQUID FUEL
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3522173 |
WATER PURIFICATION METHOD
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3515276 |
METHOD AND APPARATUS FOR DECONTAMINATING FLUID
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3515275 |
HEMODIALYSIS METHOD AND EQUIPMENT
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3508656 |
PORTABLE DIALYSATE SUPPLY SYSTEM
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3506126 |
CLOSED RECIRCULATING HEMODIALYSIS SYSTEM
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3505213 |
METHOD AND APPARATUS FOR PURIFYING A NATURAL BODY OF WATER
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3495943 |
PROCESS AND APPARATUS FOR DETECTION OF IONIC CONTAMINANTS
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3490591 |
DIALYSATE CONCENTRATION CONTROL IN ARTIFICIAL KIDNEY MACHINES
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3477575 |
METHOD OF CONTINUOUS DYNAMIC FILTRATION AND AN APPARATUS FOR CARRYING OUT THE SAME
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3464555 |
AUTOMATIC CONTROL FOR CHLORINE FEED
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3463316 |
CENTRIFUGAL SEPARATING SYSTEM
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3459304 |
PHOTOSENSITIVE FLUID MONITORING DEVICE
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3459947 |
RADIATION SENSITIVE APPARATUS FOR ANALYZING GAS
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3459303 |
WASTE TREATMENT SYSTEM
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3445000 |
WATER PURIFICATION
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3441956 |
LIQUID TREATMENT METHOD AND APPARATUS
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3441136 |
CONTROLLED BLOOD DIALYSIS SYSTEM
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3434486 |
FUEL TRANSFER DEVICE HAVING WATER SENSING SHUTOFF VALVE
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3428557 |
METHOD AND APPARATUS FOR CONTROLLING BOILER SYSTEMS
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3410292 |
Apparatus for detecting or measuring the conductivity of a liquid
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3406826 |
Artificial kidney liquid metering and dispensing device
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3399133 |
Method for developing a control signal and flocculating process employing same
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3394080 |
Method and apparatus for automatically measuring cyanide concentration and ph valuesand use in treating waste waters
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