Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7255786 | Skimmer with rotatable filter cartridge for spas and pools A pool/spa skimmer includes a housing, a face plate, and a flexible weir gate. The housing and plate are dimensioned to allow water to flow in a vertical column. The interior of the housing has a curved wall so that when a column of water passes through the open gat... | 08/14/2007 |
| 7220353 | Skimmer with rotatable filter cartridge for spas and pools A pool/spa skimmer includes a housing, a face plate, and a flexible weir gate. The housing and plate are dimensioned to allow water to flow in a vertical column. The interior of the housing has a curved wall so that when a column of water passes through the open gat... | 05/22/2007 |
| 6558545 | System for cross-flow permeation by means of a membrane The invention encompasses a system for the cross flow filtration of fluid media using membranes. The system has in a first embodiment two shafts, only one of which is hollow, with each shaft running through an axis of its given disc. The disc of each shaf... | 05/06/2003 |
| 6461507 | Continuous squeeze-dewatering device A continuous compression-type dewatering apparatus has a filter chamber (3), a drive shaft (17), a vane (15), and a supply path (50). The filter chamber (3) is delineated by an annular plate (2) and two side plates (1, 1). The drive shaft (17) passes thro... | 10/08/2002 |
| 6283306 | Rotating filter A rotating filter having at least two annular filter disks each having a plurality of filter elements and being carried by a shaft for rotation about an axis perpendicular to the planes defined by the disks. A discharge chute extends into the space betwee... | 09/04/2001 |
| 6251294 | Ultrasonic filter regenerating apparatus and method A self-regenerating filter unit having a housing which carries an ultrasonic transducer periodically energizable to dislodge caked solids from a filter element in the housing. The removed solids collect in a storage zone where they are periodically remove... | 06/26/2001 |
| 6117322 | Dynamic filter system A dynamic filter system includes a dynamic filter assembly including one or more filter elements and one or more members disposed within a housing. The filter elements and the members are interleaved and arranged to rotate with respect to one another. The... | 09/12/2000 |
| 6106713 | Dynamic filter system A dynamic filter system comprises a dynamic filter assembly including one or more filter elements and one or more members disposed within a housing. The filter elements and the members are interleaved and arranged to rotate with respect to one another.... | 08/22/2000 |
| 5951861 | Device for filtration and a method for conversion A device for filtering a liquid substance comprising a container (1) having an inlet (2), a rotor (6), an inner rotor part (7), at least one disc filter (8). Spray nozzles are provided for releasing material filtered away from the substance and deposited ... | 09/14/1999 |
| 5804071 | Rotating disc filter means A rotating disc filter for separating coarse phase from a liquid mixture having carrier elements and blocking means that prevent the coarse phase from falling back into the pool of incoming liquid mixture. The capacity of the filter is increased by the pr... | 09/08/1998 |
| 5725767 | Torsion resistant filter structure A filter cartridge for separation of aqueous colloidal suspensions utilizing a shell which forms a chamber having a colloidal suspension inlet and outlets for permeate and concentrate streams. A core is placed within the shell and includes a plurality of ... | 03/10/1998 |
| 5690824 | Septic system screened pump vault A septic system filtered pump vault comprises a housing for an effluent pump, a plurality of effluent filters contained within a filter compartment that is located in the housing, a filter support within the housing. The filters are secured to the filter ... | 11/25/1997 |
| 5679249 | Dynamic filter system A dynamic filter system comprises a dynamic filter assembly including one or more filter elements and one or more members disposed within a housing. The filter elements and the members are interleaved and arranged to rotate with respect to one another.... | 10/21/1997 |
| 5656162 | Rotating filter A rotating filter including a container (11) for a liquid or suspension to be filtered and a rotor structure (17, 21, 22, 25, 26) being provided at its outer periphery with a filter medium arranged in the shape of at least one circular ring (33) having it... | 08/12/1997 |
| 5620598 | Suction head arranged between a filtrate channel and a barometric leg of a rotating filter A suction head arranged between a filtrate channel and a barometric leg of a rotating filter having at least one filter means communicating with the filtrate channel. The filtrate channel is connected to the barometric leg through the suction head. In ord... | 04/15/1997 |
| 5593583 | Filter for continuous filtration of liquids containing solids in a closed cylindrical vessel Filter for continuous filtration of liquids containing solids in a closed cylindrical vessel with a pressure difference between the liquid to be filtered and the filtrate, with disks which are formed by hollow filter sectors and supported at a distance fr... | 01/14/1997 |
| 5330645 | Apparatus for continuously separating solid and liquid fractions of a mixture of solid and liquid fractions Apparatus for continuously separating a solid fraction from a liquid fraction in a mixture of such fractions has a stationary cylindrical vessel which is filled with the mixture and confines a rotary carrier as well as a battery of parallel disc-shaped fi... | 07/19/1994 |
| 5296098 | Method and device for separating a fibre suspension A fibre suspension is separated by a filter device having a hollow filter body (1) with a wall (2) of filter material, and a container (3). The entire fibre suspension to be separated is sprayed in the form of at least one liquid jet onto said wall (2) to... | 03/22/1994 |
| 5160428 | Continuous filter press The device is the dual functional filter of the slurry, scraping of the filtered cake, compression the scraped cake and discharging the compressed cake, continuously. The device is composed of both the filter part and the cake compression part. While the ... | 11/03/1992 |
| 5154825 | Automatic filter press Disclosed is a filter press comprising a substantially cylindrical vessel, a plurality of filter elements disposed in the vessel parallel to one another, and a rotor having a rotor shaft rotatably mounted in the vessel and a plurality of rotor elements fi... | 10/13/1992 |
| 5143555 | Travelling doctor blade A method and apparatus for doctoring (cutting) the solids off a precoat filter. A stationary doctor blade continuously doctors mud (from a mud bath) from the surface of a rotating porous surface vacuum drum. A traveling doctor blade, located upstream of t... | 09/01/1992 |
| 5114583 | Filter unit with high volumetric efficiency and reduced filtering surface The filter unit is of the type comprising a casing (2), filter tubes (5) associated with a filtering surface (6), shaker means (7) for the filtering surface (6), a suction pipe (10) associated with the casing and a suction pipe (11) associated with one or... | 05/19/1992 |
| 5074999 | Filter system having multiple filter elements and backflushing assemblies A backflushable filter including a housing having an inlet coupled to an upstream fluid inlet and an outlet coupled to a downstream fluid outlet, a filter assembly including a plurality of cylindrical filters, defining an upstream surface communicating wi... | 12/24/1991 |
| 5047123 | Apparatus for clarifying liquids A system for clarifying liquids, having particular utility in dry cleaning operations. The system includes a filter apparatus which includes a plurality of axially spaced filter elements each having a high pressure side through which unclarified liquid is... | 09/10/1991 |
| 5032267 | Apparatus for filtering a heat-softened stream of plastic material In the filtering apparatus for an extrusion machine, a stream of heat-softened plastic material arrives via a flow conduit in a filter housing at an outlet, and thereby permeates replaceable filter means which are carried by a slide which is temporarily s... | 07/16/1991 |
| 5030347 | Multiple filter elements with movable flushing assembly A multiple element filter system comprising a filter housing defining a water inlet for water to be filtered, a filtered water outlet, a plurality of cylindrical filter elements, each defining upstream and downstream surfaces, disposed in the filter housi... | 07/09/1991 |
| 4935137 | Filter apparatus for a liquid mixture Filter apparatus where two or more chambers are each provided with an inlet 23, 26, 29, 32, and outlets 25, 28, 31, 34 and means 2, 27, 30, 33, for removing substances retained in the filter. It is desirable that the filter apparatus be suitable for separ... | 06/19/1990 |
| 4919806 | Cross-flow type filter system A cross-flow type filter system includes a filter body divided into an inner primary chamber and an outer secondary chamber by a partition for fixing a plurality of flat filter media in parallel with each other, a rotor located within said primary chamber... | 04/24/1990 |
| 4906373 | Multiple filter elements with movable flushing assembly A multiple element filter system comprising a filter housing defining a water inlet for water to be filtered, a filtered water outlet, a plurality of cylindrical filter elements, each defining upstream and downstream surfaces, disposed in the filter housi... | 03/06/1990 |
| 4906357 | Filter system having multiple filter elements and back flushing assemblies A backflushable filter including a housing having an inlet coupled to an upstream fluid inlet and an outlet coupled to a downstream fluid outlet, a filter assembly including a plurality of cylindrical filters, defining an upstream surface communication wi... | 03/06/1990 |
| 4830747 | Filter apparatus for removing plankton A filter apparatus for removing plankton out of fresh or sea water containing the plankton. The filter apparatus comprises a filter housing provided with a partition plate having a plurality of through-holes thereby to partition the housing into a non-fil... | 05/16/1989 |
| 4814186 | Polymer filtration apparatus Polymer filtration apparatus comprising a body having a pair of upstream passages each terminating at a slide channel and a pair of downstream passages respectively opposing the upstream passages, and a slide member in the channel having apertures for a p... | 03/21/1989 |
| 4755302 | Method and apparatus for matrix magnetic separation A method and mechanism for the magnetic separation of material from a fluid containing magnetic and non-magnetic material, passing the fluid through matrix containing canisters wherein the canisters are carried on a turret which moves axially and rotatabl... | 07/05/1988 |
| 4673500 | Sand separation and removal method and apparatus Methods and apparatus for separating and removing sand from fluid streams are provided. The apparatus is comprised of a closed separator vessel having first and second compartments therein. An inlet connection is attached to the vessel for introducing the... | 06/16/1987 |
| 4626351 | Filter, especially for dry-cleaning machines A filter device for a cleaning machine includes a plurality of disk-like filter elements accommodated within a casing and connected to a hollow shaft to be rotatable therewith. Arranged between adjacent filtering elements are stationary disks which extend... | 12/02/1986 |
| 4608169 | Filter brush There is provided a filter brush for applying a substantially constant biasing force between adjacent filter elements and including a spring biasing system positioned between adjacent filter brush portions to exert an outward force on the brush bristles i... | 08/26/1986 |
| 4568459 | Filtering device A filtering device for filtering solids from liquids or liquid-like materials comprising a housing within which a filter member is rotatably mounted. The filter member which is traversed radially by the material to be filtered, comprises an outer sleeve m... | 02/04/1986 |
| 4525275 | Concentric filter elements A filter, especially suitable for liquids which are difficult to filter and comprising a closed cylindrical filter container (1) having an inlet (5) for the liquid to be filtered and an outlet (7) for the filtrate and enclosing a filter unit (3) comprisin... | 06/25/1985 |
| 4519910 | Apparatus for removing a fiber layer from a rotating disc filter An apparatus for removing a fiber layer from a rotating disc filter consisting of a number of filter discs mounted side by side on a common shaft includes gas or liquid nozzles for said removal. The spray nozzles are rigidly connected to slide shoes, each... | 05/28/1985 |
| 4517086 | Tubular filter apparatus An apparatus for filtering solids suspended in a slurry has a housing divided by a horizontal partition into a lower filtrand chamber and an upper filtrate compartment, the partition serving as a vibratile suspension for a multiplicity of filter tubes dep... | 05/14/1985 |
