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7617939 |
Faucet mounted water filter
A faucet mounted water filtration system includes a base having an inlet, a water receiving chamber, and at least one outlet. The inlet is configured to be coupled to a faucet. A body is coupled to...
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7453271 |
Apparatus and method for sensing water within a fuel-water separator assembly
A method of sensing water within a fuel-water separator assembly disposed within a fuel system of an internal combustion engine is provided. The method includes the steps of: A) monitoring a single...
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7037430 |
System and method for desalination of brackish water from an underground water supply
A system and method of desalinating brackish water from an inland, underground water supply is disclosed. The system includes a source of underground water, at least one distillation and/or...
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6916424 |
Method and apparatus for a hemodiafiltration delivery module
This invention provides a method and apparatus for a hemodiafiltration delivery module that is used in conjunction with a UF controlled dialysis machine to enable hemodiafiltration therapy to be...
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6773588 |
Purified water supply system
A system ( 11 ) for providing purified water comprises a plurality of individual modules, each of which includes a separable head ( 13 ) and a canister ( 17 ), which modules are joined one to...
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6696963 |
Method and system for anticipating salt depletion
The present invention provides a method and system of anticipating salt depletion in a brine tank of a water softener system, the system including a controller having a user interface and display,...
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6423230 |
Method for improving the permeate flux of a cross-flow membrane filter
A method for improving the permeate flux of a cross-flow membrane filter having at least two membrane ports through which the feed solution passes and at least two permeate outlets. The method...
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6355177 |
Water filter cartridge replacement system for a refrigerator
A water filtering system for a refrigerator determines a need for a filter change by timing the period of actuation of at least one valve used to regulate the flow of filtered water to both a water...
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6120688 |
Portable reverse osmosis unit for producing drinking water
A method of purifying impure water to provide drinking water using an apparatus, the method comprising the steps of providing a microfiltration unit, a reverse osmosis unit and a CIP...
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6080313 |
Point-of-use water purification system with a cascade ion exchange option
A modular water treatment and purification system, suitable for home use, is connected to a water supply and contains a closed fluid treatment circuit extending to a water outlet. The closed fluid...
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6001249 |
Multi-stage water filter system
A water filter system having a housing for a plurality of serial-flow connected filter cartridges with distinct filtering characteristic related to the direction of flow of water being filtered....
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5925240 |
Water treatment system having dosing control
A water treatment system having dosing control for providing treated water having very low organic and ionic contamination, that can be accurately dispensed. The water treatment system having...
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5690829 |
Conditioning process and device for producing pure water
The invention pertains to a process for the production of pure water, in which raw water, or feed water similarly, is fed to a treatment apparatus (1) that has at least one semi-permeable membrane...
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5544072 |
Method for regeneration of a water softener
A demand initiated method for regenerating a water softener which operates the softener ion exchange bed over a capacity range in which the resin is most efficiently restored by exposure to brine....
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5540107 |
Liquid flow meter
An improved liquid flow meter for measuring moderate to low liquid flow rates with improved accuracy and minimal back pressure. The flow meter has a housing with two halves, a cover and a body,...
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5522998 |
Hemodialysis apparatus having a single balance chamber and method of dialyzing blood therewith
In a dialysis apparatus having a dialyzer and a single balance chamber, the internal volume of the balance chamber is preferably at most 2/3 of the volume of the dialysis fluid chamber within the...
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5422014 |
Automatic chemical monitor and control system
An automatic system to precisely maintain bactericidal action in a reservoir of water equipped with a recirculation system, such as a swimming pool, decorative fountain, spa, cooling water...
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5389254 |
Water treatment system
A method system for treating water in which the incoming effluent water is pre-filtered, passed through a reverse osmosis unit, post filtered to remove taste and odor and then passed to a holding...
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5288398 |
Filter bed backwashing devices and methods
Methods and systems of the prior art for cleansing a plurality of seriate filter cells in automatic backwash filters by backwashing the cells one at a time with backwash liquid wherein the...
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5277828 |
Steam regenerable filter and method
A filter assembly for fluids such as air and water employs a cleanable filter. The filter is located within a housing having a reservoir, and a steam generator which can be selectively operated to...
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5215657 |
Water treatment system
Water treatment apparatus includes a housing, and at least one canister disposed within the housing. Inside the canister are disposed a first water treatment material and a second water treatment...
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5173178 |
Water purifying apparatus with timed discharge after non-use periods
An under-sink type water purifier with a water-tap portion connected to a purified-water outlet of the purifier having a sensor for sensing an object to issue a signal, and a solenoid valve for...
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5152895 |
Method for cleaning filter elements and filter for implementing it
In relation to time intervals or pressure loss, the successive flushing via the same flushing channel (10) of several filter elements (7) is brought about by the direct sweeping of the internal...
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5026476 |
Antivibration cover for rotary machine
A rotary machine having a machine body and a cover covering an opening of the body. The cover is fixed to the body by an improved vibration-absorbent structure. A peripheral edge of the cover which...
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4961845 |
Apparatus and method for filtering particulate matter from dielectric fluids
The present invention is an apparatus and method for filtering particulate matter from dielectric fluids, and for maintaining and monitoring of the purity of said fluids. The invention operates by...
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4918426 |
Method and apparatus for sensing fluid flow volume to indicate end of filter life
A method and solid-state electronic flowmeter with no moving parts is provided for monitoring instantaneous and/or accumulated fluid flow. A preferred application for the method and flowmeter is...
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4911832 |
Automatic drain system treatment apparatus
An apparatus for automatically treating a drain system to prevent or at least minimize clogging problems particularly in grease traps of the type provided in restaurants and other food preparation...
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4797208 |
Automatic drain system treatment process
A process for automatically treating a drain system to prevent or at least minimize clogging problems particularly in grease traps of the type provided in restaurants and other food preparation...
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4771801 |
Protective cover assembly with reverse buckling disc
A protective cover assembly for a fluid end of a plunger-type pump or other positive displacement pump. The protective cover assembly includes a cover adapted to fit in an open end of the fluid end...
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4490249 |
Microcomputer controlled demand/scheduled water softener
An improved control for a resin bed water softener includes a microcomputer which is supplied with input data from a flowmeter indicative of the quantity of soft water leaving the softener. In...
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4470911 |
Microcomputer controlled demand/scheduled water softener with variable capacity
An improved control for a particle bed water treatment device includes a microcomputer which is supplied with input data from a flowmeter indicative of the quantity of treated water leaving the...
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4379057 |
Method for the cyclic regeneration of water-softening systems and programmed water-softening system for applying the method
Ion exchange medium in a water softening system is regenerated cyclically, in response to both a preset timer and a metering device responsive to the degree of hardness of the untreated water and...
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4313825 |
Control system for meter actuated regeneration in a water treatment system
This invention relates to a control system for regeneration of a water treatment system in which a water meter monitors water usage and mechanically drives a water volume wheel to an operative...
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4063554 |
Single needle alternating flow blood pump system
A blood pump system, typically employed in dialysis, includes a blood pump for withdrawing blood via a single hypodermic needle and valve means operated in synchronism therewith for returning...
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4032443 |
Removal of grease and oil from particulate bed granules by backwashing with a detergent
Filtering solids from waste water liquids and cleaning, degreasing and restoring the filtering media through the use of cleaning compounds forced up through the filtering substances.
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3616912 |
WATER-SOFTENING SYSTEM FOR WELL-DRILLING UNITS
A system for supplying a continuous flow of calcium-free water especially for use in oil-well-drilling operations that is portable in nature and is self-contained for automatic regeneration and...
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3595385 |
METHOD AND APPARATUS FOR CONTROLLING LEVELS IN AN ION EXCHANGE RESIN SEPARATOR
An improved method and apparatus are provided for controlling both the resin level and the quantity of fines above the resin in an anion-cation exchange resin separation column. In carrying out the...
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3530710 |
APPARATUS FOR THE CONTINUOUS WITHDRAWAL OF SLUDGE DURING THE MUD LOGGING OF WELLS
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3358712 |
Water softener control apparatus
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3311552 |
Continuous brine pulsing softener
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3308955 |
Apparatus for injecting into water softening systems
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3286839 |
Brine saver device
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3164550 |
Apparatus for softening water
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3160008 |
Flow responsive signal generator
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