Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 4976873 | Pulsing portions of a filter cell to extend a filter run An improved method for operating a down-flow granular medium filter is disclosed which increases the effective filtration time between backwashes. The filter tank cell is divided into a plurality of subcells, each individually adapted and controlled for p... | 12/11/1990 |
| 4967593 | Method and apparatus for distinguishing between different substances in a container A method for determining the level of heavier particulate waste material in a storage tank of liquid. The method comprises mounting a heated sensor below an unheated or reference sensor so that the reference sensor is influenced under some circumstances b... | 11/06/1990 |
| 4966711 | Transition metals as treatment chemical tracers Methods for utilizing transition metals as tracers in aqueous liquid systems are provided by this invention. Transition metals with low background levels in system waters are identified as preferred when soluble in said aqueous liquid systems. The transit... | 10/30/1990 |
| 4938878 | Immiscible separating device Method and apparatus for separating immiscible liquids such as water from oil such as lubricating oil or diesel and fuel oil contained in a reservoir, including an outlet adjacent the lowest part of the reservoir, a first conduit having an inlet connected... | 07/03/1990 |
| 4909948 | Above ground waste water disposal system A method and apparatus for disposing of waste water above ground is disclosed. Effluent is deposited in a first tank wherein solids are broken down and liquified by a primary preconditioning unit. The preconditioned effluent is transferred to a second tan... | 03/20/1990 |
| 4904386 | Method of purifying liquids like wastewater by means of a filter bed containing aquatic plants planted in such filter bed The filter bed containing aquatic plants planted therein is provided with a lengthwise and/or transverse drainage arrangement containing a predetermined number of drain pipes. Particularly during the growth phase of the aquatic plants, the drainage arrang... | 02/27/1990 |
| 4902429 | Gas assisted flotation process This invention relates to a gas assisted flotation process and apparatus useful in the separation of solids from liquids in a slurry, such as treated waste waters, paper pulp solution etc. The gas assisted flotation process may be operated on a continuous... | 02/20/1990 |
| 4900453 | Filter centrifuge control A filter centrifuge has a feeler arm which contacts the free surface of the centrifuge contents to signify by the angular displacement of the arm, the thickness of the layer of contents in the filter drum. On the contact surface of the filter arm, at leas... | 02/13/1990 |
| 4898679 | Method and apparatus for obtaining ozone saturated water Gaseous ozone is admixed and stored with water under such conditions that the density of ozone in the water is increased above the normally obtained and held stabily at such levels so that it may be efficiently transported through the processing plant bei... | 02/06/1990 |
| 4898678 | Heavy-metal separator for drinking water An apparatus and method of removing lead contaminants from drinking water wherein the apparatus includes a first lead-separator tank which receives water from an incoming line. Lead particles are allowed to settle to the bottom of the first separator tank... | 02/06/1990 |
| 4897196 | Two-stage batch wastewater treatment A two-stage, batch process for purifying wastewater containing organic and adsorbable pollutants includes the steps of introducing a predetermined quantity of the wastewater into an aeration and settling zone of a primary treatment zone and aerating there... | 01/30/1990 |
| 4895657 | Apparatus for hemodialysis The invention relates to an apparatus for hemodialysis comprising a mixing means which prepares dialysis solution for a dialyzer by mixing concentrate with prepared water. The apparatus comprises a protective system which is independent of the mixing syst... | 01/23/1990 |
| 4895666 | Centrifuge with two withdrawal chambers A centrifuge apparatus and a method of filtration are described. The centrifuge has radial and lateral filtration surfaces and separate discharge chambers for each. The lateral filter is located at an imperforate radial distance from the radial filter. Th... | 01/23/1990 |
| 4880533 | Apparatus and system for treating waste water and sludge The present invention includes an apparatus and system for treating waste water. More specifically, for the removal of a floating component of the waste water from the remaining water relatively free of the floating component. The apparatus includes a sep... | 11/14/1989 |
| 4876888 | Thickness monitor for floated sludge An apparatus is disclosed for determining the thickness of a layer of aerated sludge floating on a layer of heavier liquid in a tank used in the treatment of sewage. The apparatus comprises a frame which can be positioned to extend vertically into the tan... | 10/31/1989 |
| 4874531 | Apparatus and method for separating water from aviation fuel, and float control therefor For use in combination with a system for separating water from pressurized fuel in a filter-separator tank, there is provided a float valve and weight device that prevents fuel from leaving the tank if the interface between fuel and water is at an undesir... | 10/17/1989 |
| 4869831 | Separating immiscible components from toxic fluid An apparatus and method for controlling operating conditions of a corrugated plate interceptor vessel using at least two transparent windows located in proximity of the oil and treated water layers which are maintained transparent by washing their interio... | 09/26/1989 |
| 4867886 | Method and apparatus for controlling sludge flocculant flow The flow of waste water sludge flocculant to a dewatering system is regulated by a surface proximity sensor located downstream of the flocculant addition point. Depth, variability and continuity of a partially drained sludge mat are evaluated by a depth s... | 09/19/1989 |
| 4844812 | Pumped hydrocyclone backpressure control A method and related system are disclosed for controlling the operation of a fixed rate pumped hydrocyclone liquid separation unit to maintain a desired back-pressure therein. A pressure control valve and a liquid level control valve are connected to a se... | 07/04/1989 |
| 4839057 | Water treatment system A method and apparatus for the removal or reduction of inorganic contaminants, hardness, radionuclides, organic contaminants, odor, turbidity, discoloration, and objectionable taste from water, subjects the water to lime-phosphate softening, aeration, sed... | 06/13/1989 |
| 4830757 | Telemetry system for water and energy monitoring A water quality monitor computer (10) repeatedly accesses transducers (12) which monitor physical properties of a water system, such as total dissolved solids, pH, and the like. The water quality monitor computer determines from the monitored water condit... | 05/16/1989 |
| 4828716 | Apparatus and method for separating phases of blood Method and apparatus for partitioning a pre-selected phase of a sample of liquid, such as blood, having a plurality of phases of differing densities the method comprising the steps of introducing a sample into a chamber of constant cross-sectional shape a... | 05/09/1989 |
| 4828717 | Device and method for reducing volume of aqueous waste effluents The device for reducing the volume of an aqueous waste effluent includes a holding tank, a heating tank for receiving waste effluent from the holding tank and including a heater for heating the waste effluent to a predetermined temperature which is below ... | 05/09/1989 |
| 4824579 | Water clarification method and apparatus A primary separation vessel is separated into a plurality of chambers having fluid communication therethrough; in each of the chambers there is further included a downwardly depending eductor system having a coaxial bore wherein fluid induces air into the... | 04/25/1989 |
| 4824581 | Filtration apparatus control In a filtration apparatus in which a flocculant is added to promote flocculation, efficient use of the flocculant is ensured by measuring an operational parameter of the apparatus dependent on the degree of flocculation, and adjusting the amount of floccu... | 04/25/1989 |
| 4818414 | Slime control for primary filtration systems A process and apparatus for protecting a media bed filter with underlying support screen from solids contained in a liquid, such as filtrate from the filter, used to regenerate or backwash the media bed filter. Filtrate enters a first collection chamber c... | 04/04/1989 |
| 4810371 | Process for fine coal cleaning A process for automating fine coal cleaning including monitoring the operation of a flotation cell for separating coal from ash impurities by automatically detecting the coal content of the tailings from the cell and controlling the supply of additives to... | 03/07/1989 |
| 4810386 | Two-stage wastewater treatment A two-stage process for purifying wastewater containing organic and adsorbable pollutants includes the steps of first aerating the wastewater in the presence of a powdered adsorbent, such as activated carbon, and biologically active solids in the aeration... | 03/07/1989 |
| 4810389 | Filtration system A method and apparatus are disclosed for increasing the concentratin of suspended particles within a slurry by removal of the fluid. The slurry is passed along the surface of a porous material such as porous plastic pipe having pores of a diameter greater... | 03/07/1989 |
| 4806252 | Plasma collection set and method An apparatus and method of separating a component from a collected quantity of fluid. The apparatus includes a dual member centrifuge and an associated fluid flow transfer set. The transfer set has a collection container in which a quantity of fluid can b... | 02/21/1989 |
| 4800025 | Apparatus and process for the gas flotation purification of oil-contaminated water Apparatus for the dispersed gas flotation and separation of insoluble, dispersed contaminants from a liquid comprised of a horizontal series of flotation cells, separated by baffles that permit the substantially horizontal flow of liquid from one cell to ... | 01/24/1989 |
| 4795567 | Oil spill separating and recovery system Vacuum pressure applied to a hydrostatic chamber causes a rise of carrier liquid from an underlying flow stream to an equilibrium level in a hydrostatic column passage and stacking of floating liquid thereabove for separation from the carrier liquid by ov... | 01/03/1989 |
| 4769156 | Method and means to pump a well Method and means to pump a well with a hydraulically-driven downhole pump (15) as powered by a hydraulic surface unit (1) are disclosed, including a downhole filter assembly (71) and a flowline mounted oil leach (27) for supplying makeup oil to the surfac... | 09/06/1988 |
| 4747952 | Method and apparatus for plasma treatment Separation apparatus capable of separating plasma into high molecular weight substances and low molecular weight substances containing albumin, regardless of whether plasma is obtained by separation of corpuscular components in a continuous centrifugal se... | 05/31/1988 |
| 4728440 | Apparatus and method for removing a liquid from a mixture of liquids Apparatus for removing a liquid from a mixture of liquids in a collecting tank has a drain box in the collecting tank having a weir for passage of liquid being removed into the drain box and a conduit for discharge of the liquid from the drain box. The dr... | 03/01/1988 |
| 4707272 | Method for controlling and optimizing the operation of a perforated belt press for filtering slurry A level measuring sensor is arranged at the start of the straining zone in the perforated belt press and this in particular measures the level change and then regulates the flocculant inflow. In order that the level in the straining zone is stabilized, th... | 11/17/1987 |
| 4701265 | Chlorinating apparatus An apparatus for chlorinating swimming bath water, includes an electrochemical cell (2) with an anolyte chamber (25) and a catholyte chamber (22), which are separated by an ion-selective diaphragm (290), a metering device (7) for supplying consumption hyd... | 10/20/1987 |
| 4699719 | Process and apparatus for utilizing engine exhaust heat in oil field operations Exhaust heat from engines used in oil field operations can be utilized to (1) at least partially separate a water-containing wellstream fluid into a progressively enlarged hydrocarbon phase which floats on the remainder of the wellstream fluid and/or on a... | 10/13/1987 |
| 4693831 | Rise-rate control of pulsed-bed granular medium filters A method for controlling the pulsing of a granular medium filter, based on determination of the rise rate of liquid level above the filtration medium. A pulse system is activated whereby sub-fluidizing pulses of a fluid are directed upwardly through the f... | 09/15/1987 |
| 4663056 | Vacuum-sewage-collection system Holding tanks in an extremely simple vacuum-sewage system can provide high volume storage against emergencies such as vacuum pump failure, while providing under normal circumstances frequent, sudden, small-volume discharges in which any one holding tank d... | 05/05/1987 |
