Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7442293 | Oil/water separation apparatus for oil-containing mixture Oil adsorbent layers 4 and packed layers 5 are alternately laminated inside a treatment vessel 2, the oil adsorbent layers 4 comprise ten laminated flat sheets 4a composed of polypropylene, and gelled aluminum hydroxide 1... | 10/28/2008 |
| 7416665 | Pore size controllable filter The pore size controllable filter can separate and remove effectively the suspended solid and eliminate rapidly it captured by the device. The filtering materials (21) are built on the upper filtering material holder (23) and the lower filtering materi... | 08/26/2008 |
| 7396463 | Spiral wound membrane element and a process for preventing telescoping of the filter element A process for ultrafiltration using a spiral wound membrane filter is disclosed where the pressure in the space between the filter element and the pressure vessel is higher than or equal to the pressure inside the filter element. Using these conditions the static fo... | 07/08/2008 |
| 7393388 | Spiral wound fuel stabilization unit for fuel de-oxygenation A deoxygenator includes a plurality of permeable membranes spirally wound about an exhaust tube for removing dissolved oxygen from a hydrocarbon fuel. The permeable membrane is spirally wrapped about the exhaust tube and defines fuel passages and exhaust passages. T... | 07/01/2008 |
| 7371321 | Fluid filtration system A filtration system (10) for removing contaminants from a fluid is provided. The system includes a housing (44) having a convex shaped base (78) and a top (84), with filter media (46) disposed within the housing. The filter media m... | 05/13/2008 |
| 7360658 | Extension and locking assembly for dripless element and container therefore A filter assembly includes housing enclosing a replaceable filter element. A support core is provided in the housing, and includes an extension and locking assembly. The element includes a ring of filtration media with a pair of end caps. The first end cap includes ... | 04/22/2008 |
| 7347937 | Perfluorinated thermoplastic filter cartridge A filtration cartridge having a housing with an inlet and an outlet and a filtration membrane contained within the housing and located between the inlet and the outlet is described. The membrane is sealed in such a manner that all fluid must flow through the membran... | 03/25/2008 |
| 7325566 | Filtering seal for a fluid control valve A filtering seal for a solenoid valve has an annular base member which defines an axial first retainer surface and a radial sealing surface. Legs extend from the base member. An annular screen support member is attached to the legs and has an axial second retainer s... | 02/05/2008 |
| 7284676 | Lid with a filter and the filter therefor A lid for a cup is provided with a filter fitted into a sipping hole which filters solid objects, such as tea leaves, mixed into the beverages so that pure beverage can be drunk. In the preferred embodiment, the filter component is a coil spring 14 having hoo... | 10/23/2007 |
| 7264722 | Filtration system A method and apparatus for removing organic contaminants from an aqueous phase in which the contaminant is solubilized. In the method the aqueous phase is passed through a fluid-pervious filtration media which has been infused with an absorbtion composition comprisi... | 09/04/2007 |
| 7264721 | Filtration system A method and apparatus for removing organic contaminants from an aqueous phase in which the contaminant is solubilized. In the method the aqueous phase is passed through a fluid-pervious filtration media which has been infused with an absorbtion composition comprisi... | 09/04/2007 |
| 7255722 | Gas filter A filtration portion 11 constituting a filter element 3 is composed of a first filtration material 9 wound around the outer periphery of an inner tube 8 and a second filtration material 10 wound tightly around the outer peripheral ... | 08/14/2007 |
| 7240875 | Yarn carrier A yarn carrier is provided in the form of a yarn winding tube having a yarn catch insert. The yarn winding tube is a hollow cylindrical tube having a longitudinal axis extending lengthwise between its first and second opposite ends. The tube has a hole through its s... | 07/10/2007 |
| 7240701 | Method for making a collapsible funnel A collapsible funnel and a method for making a collapsible funnel is disclosed. In accordance with one embodiment of the invention, the collapsible funnel may be provided with a screen for filtering fluids placed into the funnel. In accordance with another aspect of... | 07/10/2007 |
| 7237583 | Multipurpose collapsible funnel A collapsible funnel may be removably secured to a container, label or provided independently. In another aspect of the invention, a business method is disclosed in which a funnel blank or collapsed funnel is used as a substrate for printed indicia and incorporated ... | 07/03/2007 |
| 7198719 | Sealer holding member for membrane element and membrane element using the same A sealer holding member for a membrane element is disposed at an end of a spiral-type membrane element on an outer circumference thereof, and allows a feed to flow into a membrane end of the membrane element. The sealer holding member includes a first annular portio... | 04/03/2007 |
| 7188732 | Method for manufacturing of a liquid cleaner and cleaner manufactured by said method The present invention relates to a method for the production of liquid cleaners, consisting of a cleaner housing with a cleaning chamber exhibiting an inner and an outer end, and a cleaning insert arranged inside the cleaning chamber. The cleaner housing is given a ... | 03/13/2007 |
| 7172697 | Seal ring holder for membrane element and membrane element A seal ring holder for membrane elements which is capable of attaining an increase in the area of membranes packed per element; and a membrane element using the seal ring holder, are provided. The seal ring holder for membrane elements which is disposed at an end pa... | 02/06/2007 |
| 7168574 | Dual filter A dual filter apparatus and a process of making a dual filter apparatus that minimizes disruption to the normal flow pattern through the filter apparatus by forming a porous medium suitable to carry a fluid activator and placing an activator proximate the porous fil... | 01/30/2007 |
| 7163625 | Filtration device The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achievi... | 01/16/2007 |
| 7147625 | Leg bag accessory An accessory is connected between a leg bag and a urinary catheter to prevent microorganisms migrating from the leg bag up through the catheter. The accessory has a sleeve, connectors to connect the sleeve to the leg bag and to the urinary catheter, a filter positio... | 12/12/2006 |
| 7125490 | Porous filter A filter has a longitudinal axis with an inner diameter defined by a hollow longitudinally extending center. The filter has fingers extend radially outwardly arcuately from the longitudinal axis. The fingers have base ends near the longitudinal axis and outer edges ... | 10/24/2006 |
| 7125434 | Deep gradient-density filter device A deep gradient-density filter device capable of effectively filtering a fluid containing a distribution of particles in the range of approximately 25 microns to approximately 0.2 micron at a fluid velocity of at least approximately 100 cm/hr and an initial hydrauli... | 10/24/2006 |
| 7122120 | Filter element, particularly for the static or dead-end filtration of fluids, and corresponding filter device The invention relates to a filter element (F), particularly for the static or dead-end filtration of fluids, comprising an inner, essentially hollow supporting core (10) and at least one filter layer (12–14) placed thereon. The inner supporting core ... | 10/17/2006 |
| 7074326 | Curb-and-grate inlet filter A curb-and-grate inlet filter is provided for temporarily covering, during nearby construction activities, the curb-and-grate inlet of a storm drainage system so as to filter from storm water runoff silt and debris attendant such construction. The curb-and-grate inl... | 07/11/2006 |
| 7063790 | Filter candle A filter candle for a precoated filter for filtering and/or stabilizing fluids, especially beer, the filter candle comprising a tubular filter body that is formed from a spirally wound wire, with gaps being provided between the wire windings as fluid passages. To im... | 06/20/2006 |
| 7059481 | Filter element A filter element (10) having a supporting body (11) around which a filter medium (12) is wound. The filter medium (12) is a weldable material and is sealingly affixed to the supporting body (11) two radial weld seams (18) an... | 06/13/2006 |
| 7048855 | Cross flow filtration materials and cartridges Cross flow filtration cartridges are made using semipermeable membrane of sheet formation that was cast upon an integral polymeric fibrous support material which exhibits excellent permeate flow in the plane thereof and serves as both backing material and permeate c... | 05/23/2006 |
| 7033497 | Filter cartridge A filter cartridge formed by winding, in a twill construction, a band-shaped unwoven cloth, which contains thermoplastic fibers and at least a part of its fiber intersections are stuck thereon, so that a cylindrical shape can be obtained, wherein 1. two types of fil... | 04/25/2006 |
| 7025212 | Plasma- or serum-collecting device A plasma- or serum-collecting device with simple structure and easy to handle is provided. The device comprises a vacuum blood drawing tube accommodating a blood-filtering unit, wherein the vacuum tube contains a space above the blood-filtering unit to preserve bloo... | 04/11/2006 |
| 7014050 | Filter cartridge A filter cartridge comprising a strip, long fiber non-woven fabric which comprises a thermoplastic fiber and in which at least a part of fiber intersections is adhered, which is wound around a perforated cylinder in a twill form, has made it possible to obtain a cyl... | 03/21/2006 |
| 6997969 | Filter material and method A filter is provided including a synthetic filter material formed into a filter structure and having at least one embossment having a depth of at least about 1.5 mm, preferably at least about 4.0 mm, and more preferably at least about 5.0 mm. A method for making the... | 02/14/2006 |
| 6942106 | Wound polypropylene yarn filter cartridge and method for making same A filter cartridge formed of wound polypropylene yarn lacking a spin-finish and method of making same are disclosed herein. The method includes the steps of: providing a filter core; providing a plurality of continuous polypropylene filaments; applying water to the ... | 09/13/2005 |
| 6938781 | Three-dimensional non-woven filter A non-woven depth filter cartridge includes a cylindrical mass of essentially continuous melt-blown polymer filaments and an essentially continuous traversing melt-blown polymer filament extending through the mass. The mass has a depth dimension, a longitudinal dime... | 09/06/2005 |
| 6916395 | Process for making three-dimensional non-woven media A method of continuously producing a melt-blown polymer filament mass includes producing a first set of melt-blown polymeric filaments, collecting the first set of filaments on a rotating collection device to form a tubular filament mass having a plurality of layers... | 07/12/2005 |
| 6905534 | Method and apparatus for removing vapor phase contaminants from a flue gas stream The present invention provides a method and apparatus for removing trace contaminants from a gas stream or flue gas. In one embodiment, the present invention an apparatus for removing a trace contaminant from a gas stream, comprising a gas duct configured to receive... | 06/14/2005 |
| 6874642 | Filtering element made of absorbent paper material in the form of a tubular cylinder The invention relates to a filter system (10) including a filter element (14) for filtering a fluid within a cylindrical case (12). The filter element is an absorbent tissue paper material in the form of a sheet compactly wound to form inner win... | 04/05/2005 |
| 6860393 | Filter device and filter element comprising at least one negatively charged membrane The present invention provides, in certain embodiments, a negatively charged microporous membrane comprising a porous substrate and a crosslinked coating having fixed negative charges. The crosslinked coating can be prepared, e.g., from a polymerized composition com... | 03/01/2005 |
| 6851560 | Drain element comprising a liner consisting of hollow rods for collecting in particular hydrocarbons The drain element for collecting hydrocarbons comprises a screen (TM) surrounding a suction cylinder (CA) extending in a longitudinal direction (AL). The screen is made up of rods (TT, TC) which extend along said longitudinal direction (AL) and which are regularly s... | 02/08/2005 |
| 6836963 | Process for production of conical filter elements A process for production of conical filter elements, in particular slotted tube filter elements, includes forming a support structure of a plurality of support rods around which is wound at least one wire profile in individual turns. Slots are left clear in the wire... | 01/04/2005 |
