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Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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| Number | Title | Issue Date |
| 7374668 | Valve automated in-situ cleaning system for oil water separator An oil/water separator tank having intake, discharge and vent fittings is conditioned for in-situ cleaning of the oil separator plate stacks positioned therein by selective opening of manual valves connected to each of such fittings. When so conditioned by opening o... | 05/20/2008 |
| 7285180 | Perforated deck made out of a plurality of segments A cylindrical rotating thickening device including an axial core, a plurality of longitudinally extending spaced apart support ribs extending radially from the axial core, and a shell surrounding the support ribs and supported thereon. The shell includes a plurality... | 10/23/2007 |
| 7250109 | Back-wash filter In the backflush filter (10) according to the invention, in which the flushing back of the filter inserts (15) which are received in several filter chambers takes place by means of flushing filtrate loaded by compressed air, the flush valve (35)... | 07/31/2007 |
| 7083729 | Device and method for cleaning a fluid, such as water A device for cleaning a fluid comprises at least one set of a first membrane cloth and a second membrane cloth, each being permeable to water over substantially their entire length. The membrane cloths are held taut, substantially parallel to one another in a frame ... | 08/01/2006 |
| 7083735 | High debris content strainer A high debris content strainer that utilizes a cylindrically-shaped screen having four removal assemblies positioned evenly around the screen periphery. Each removal assembly includes a backwash spray bar on the downstream side of the screen and a scraper/brush and ... | 08/01/2006 |
| 6627079 | Apparatus for filtering a liquid The invention relates to a method and apparatus for filtering a liquid. The filtering is conducted using one or several filter elements in the filter housing, the operation being based on the alternation of filtering stages and air flushing stages. Accord... | 09/30/2003 |
| 6607661 | Filtering apparatus The invention relates to a filtering apparatus, the operation of which is based on alternating filtering and flushing stages. The apparatus comprises one or several filter elements placed into a filter housing supported by a casing, the filter housing bei... | 08/19/2003 |
| 6505744 | Solid-liquid separation equipment in particular for biological purification of wastewater An apparatus for the separation of a solid/liquid suspension by filtration includes a tank filled with a suspension to be treated. At least one cavitied plate is located in the tank and has at least one internal cavity. The plate is immersed in the suspen... | 01/14/2003 |
| 6375841 | System for transporting and separating wet chips and delivering dried chips A system for transporting wet chips to a centrifugal separator where the wet chips are separated into dry chips and fluid with the dry chips being transported to a dry chips site and the fluid recirculated or collected. Preferably, the centrifugal separat... | 04/23/2002 |
| 6280632 | Device and method for preparation of substitution solution Apparatus and methods for providing sterile substitution solutions from a dialysis fluid used in connection with the treatment of a patient's blood in an extracorporeal circuit are disclosed. The apparatus includes pumps or valves for comparing the flow o... | 08/28/2001 |
| 5683583 | Sewage dewatering equipment A process of dewatering primary-treated sewage which includes mixing the sewage with a coagulant or flocculant aid, usually activated polymer. The sewage is then mixed and flocculated at conditions which involve extensive mixing turbulence of the sewage a... | 11/04/1997 |
| 5681465 | Filtration equipment with filtrate recovery process In a filtration equipment with a filtrate recovery process, in order to achieve reduction in recovery time of suspension in a tank and allow sludge such as filtration aid to be exfoliated readily from filtration elements and discharged, pressurized water ... | 10/28/1997 |
| 5538638 | Method of testing IV admixtures for contaminants A method and apparatus for testing a pharmacological IV admixture for contaminants, following filtering of turbid liquids such as emulsions through a micropore filter, includes the step of first air purging or gas purging residual emulsion particles throu... | 07/23/1996 |
| 5462678 | Air blast backwash assembly for flexible filter device A filter device including means to produce an air actuated purge for backwashing a filter assembly including a double sieve basket having a flexible filter between the double baskets. The backwash removes caked contaminant from the filter and baskets. The... | 10/31/1995 |
| 5372653 | Cleaning of filters A method of cleaning metal filters of a solvent spun fibre production plant. The method comprises the step of (a) dissolving dope from the filters using a hot solvent for the dope, (b) washing the solvent from the filters using hot water, (c) pyrolysing r... | 12/13/1994 |
| 5227048 | Backwashable filter device having means to add additional fluids to filtrate backwash fluid The invention concerns a backwashable filter device, specially for domestic water conduits that includes an inlet for raw water, a raw water chamber connected to the inlet, an outlet for clean water, a clean water chamber connected to the outlet, a filter... | 07/13/1993 |
| 5051173 | Device to remove oil from oil filter A device which employs high pressure air to remove oil from a used oil filter of a motor vehicle. High pressure air directed into a central core of an oil filter forces out oil in the filter, thereby permitting the filter to be disposed of in an environme... | 09/24/1991 |
| 5045188 | Recirculating toilet water system with self-purging valve operable by a restoring spring A recirculating toilet water system includes: a toilet, a main water tank for storing water and receiving waste matters from the toilet, a filtered water supply means for supplying filtered water as filtered through a screen from the main water tank for f... | 09/03/1991 |
| 5024762 | Concentration of solids in a suspension A method of concentrating solids in a liquid suspension using a filter having a plurality of hollow, microporous, elastic fibres with a shell or housing, comprising applying the suspension to an outer surface of the fibres whereby a portion of the suspens... | 06/18/1991 |
| 4702833 | Filter apparatus A filter apparatus is disclosed having a multi-stage filter tower and a plurality of liquid reservoirs, each reservoir having an approximately horizontal filter surface at its lower surface. The reservoirs are connected to each other centrally and in a ve... | 10/27/1987 |
| 4591873 | Ink jet printing apparatus with orifice array cleaning system A cleaning system for ink jet printing orifices includes cooperative elements which provide varying pressure differentials across the orifice plate that oscillate ink into and out of the orifices. In one embodiment the pressure differentials are implement... | 05/27/1986 |
| 4552669 | Pneumatic hydro-pulse filter system and method of operation A repeatably rejuvenating filtration system of the pneumatic hydro-pulse type is disclosed as including the feeding of a solid/fluid feed slurry to be filtered into operative engagement with the interior porous wall surfaces of a plurality of open ended t... | 11/12/1985 |
| 4529516 | Self-flushing magnetic separtor A self-flushing, magnetic separator technique including feeding the medium to be separated to one end of a matrix in a container; collecting separated fluid from the other end of the matrix; accumulating at least one matrix volume of the separated fluid i... | 07/16/1985 |
| 4483160 | Dry cleaning apparatus for cleaning pieces of fabric A dry cleaning apparatus for pieces of fabric such as clothing has a tumbler drum with a washing space within it in which the clothing is firstly washed with solvent and thereafter is dried and if necessary aired. To this end the drum space with the cloth... | 11/20/1984 |
| 4282105 | Filter Disclosed is an improved liquid filter in which contaminated liquid is pumped into an inlet chamber, through a filter element, into an outlet chamber and out of the filter through an outlet pipe. The inlet and outlet chambers have compartments which hold ... | 08/04/1981 |
| 4277337 | Deposit filtering apparatus for filtering turbid liquids A deposit filtering apparatus and method for filtering turbid liquids. The apparatus is provided with an essentially cylindrical, vertical filter container, in which sieve-like plate-shaped filter elements are arranged vertically between the turbid liquid... | 07/07/1981 |
| 4177138 | Dialysis method and apparatus therefor Dialysis apparatus has dilution and concentration chambers arranged alternately, which chambers each are defined by ion exchange membranes and frames each disposed therebetween. Passages for introduction of air into the dilution and concentration chambers... | 12/04/1979 |
| 4127486 | Apparatus for the pressure impingement of a pressure filtration cell A pressure filtration cell includes a reservoir for liquid to be filtered, a filter at the bottom of the reservoir, and a manually actuable pump for supplying compressed air. The pump is detachable from the reservoir. The air is introduced near the bottom... | 11/28/1978 |
| 4043918 | Self cleaning filter assembly with fluttering inner filter member A hydraulic filter is provided with means for effectively cleaning its mesh filtering element during a flushing or "blow-down" cycle, wherein unfiltered liquid is passed rapidly along the surface of the tubular mesh to be exhausted from the filter substan... | 08/23/1977 |
| 3947361 | Filter The cylindrical filter surface of a drum filter is increased in effective area by providing radial inward and outward undulations in the general cylindrical shape instead of the cylindrical surface of the prior art.... | 03/30/1976 |
| 3933648 | Screening apparatus A screening apparatus comprising a water receptacle, a screen frame mounted on the water receptacle with a screen covering the opening of the water receptacle, a sprinkler for sprinkling water into the screen frame and a vibrator for expanding and contrac... | 01/20/1976 |
