Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8051990 | Oil canning of mesh screen for filter A method of reducing if not eliminating the possibility of tearing or ripping of a mesh screen of a filter during the manufacturing process includes the step of intentionally deforming the mesh screen. With this technique, as the plastic material that forms the fram... | 11/08/2011 |
| 7448501 | Concentric C-shaped filter and screen topology A screen for separating solids and liquids is formed from parallel strips of wedge wire or similar material into a substantially cylindrical two-sided enclosure in a generally C-shaped profile. Unfiltered liquid containing solids contacts the screen surface on both ... | 11/11/2008 |
| 7431165 | Liquid/solids waste separator A liquid/solids waste separator apparatus for use in separating animal waste or waste water into filtered liquid and collected solid particles. It has an elongated housing having a pair of support legs attached to the rear end of the housing for varying the inclinat... | 10/07/2008 |
| 7431837 | Mixing vessel and method of use A mixing vessel contains a septum, dividing a first chamber from a second chamber. By relatively moving the septum with respect to the ends of the vessel, and flowing a fluid through the septum, the fluid is treated as it moves from the first chamber to the second c... | 10/07/2008 |
| 7413089 | Reusable cartridge oil filter A replacement filter for conventional throw-away spin-on oil filter cartridge on an internal combustion engine. The replacement filter uses a porous metallic filter element, preferably a woven stainless steel, pleated filter element, within a housing physically simu... | 08/19/2008 |
| 7410569 | Filtration system for metalworking fluids A filtration system for metalworking fluids has panel filter elements arranged in cells in which the filter frames and panels are approximately parallel to one another. The filter frames are disposed such that the filter surfaces are oriented at an acute angle with ... | 08/12/2008 |
| 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 |
| 7374050 | High capacity and high efficiency filter deck assembly A rotary drum filter has a plurality of longitudinally extending division grids mounted about the outer circumference of a drum. A plurality of corrugated sheets are provided, with the leading and trailing edges of each sheet mounted to circumferentially adjacent pa... | 05/20/2008 |
| 7370766 | Filter cloth and replaceable filter module A filter cloth whose underside comprises substantially parallel, additional yarns 8 that are thicker than the rest of the yarns of the cloth, substantially parallel channels 9 being formed between the yarns, wherein filtered liquid passed through the c... | 05/13/2008 |
| 7344580 | Filter unit Converting machines give rise to polluted air which must be removed with the aid of fans and filters. The invention aims at removal of the polluted air in such a way that the servicing interval is greatly extended by the use of a filter unit having a number of part-... | 03/18/2008 |
| 7325694 | Flexible strainer A strainer is provided to facilitate the washing of an item in a conventional sink. The strainer includes a flexible sheet having a plurality of apertures extending therethrough. Handles project from the outer periphery of the flexible sheet to move the flexible she... | 02/05/2008 |
| 7311751 | Filter medium A filter medium includes at least a first and a second layer. Both first and second layers have a layer volume VLq and a layer filtering surface SLq, where SLq is the accumulation of all mantle surfaces of the fibers present in this layer q. The first layer has a SL... | 12/25/2007 |
| 7282142 | Fluid strainer assembly A fluid strainer device is disclosed. The device includes a housing which defines an open chamber, the chamber having both at least one fluid input port and at least one fluid outlet port. A plurality of spaced strainer baskets are disposed within the chamber. Each ... | 10/16/2007 |
| 7270747 | Storm water drain system An in-line storm water drain system and a filter basket for a storm water drain system are provided in which the storm water drain system has a housing having an inlet and outlet thereinto and interior walls forming a plurality of chambers therein. The filter basket... | 09/18/2007 |
| 7264645 | Plate-shaped filter element A plate-shaped filter element made from several wire cloth layers and having at least one layer in the form of a filter cloth is designed to allow particles of a certain size can be filtered out from a filterable material, whereby, in particular, particles can be fi... | 09/04/2007 |
| 7258785 | Apparatus for separating oil and debris from water run-off A method and apparatus for separating oil and debris from urban water run-off, the apparatus being made up of a chamber which is mounted in a storm drain system and has an inner basin with a tilted wire wedge wire screen filter in the path of flow of the run-off, an... | 08/21/2007 |
| 7243715 | Mesh screen apparatus and method of manufacture The present invention provides for a design and method of manufacture for a mesh-type screen to be used in subsurface well completions to prevent the production of sand. ... | 07/17/2007 |
| 7237518 | Oil filter for continuous variable valve timing apparatus in engine An oil supply passage of a cylinder head increases design freedom of cylinder heads. The oil filter variously sets the oil supplying position through which oil enters into an oil filter. This improves fuel consumption by simplifying the oil supply passage of the cyl... | 07/03/2007 |
| 7232517 | Passive freestanding portable liquid filtration device A freestanding portable liquid filtration device (18) having an upper housing (24), a lower housing (32) and a base (36) which are secured together with an interference fit, with an enclosed lower portion of the upper housing (24) ... | 06/19/2007 |
| 7216767 | Screen basket and shale shakers A screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, the basket including two opposed spaced-apart side walls having first e... | 05/15/2007 |
| 7210584 | Filter device, in particular for high-pressure applications in a molten polymer filtration A filter device, in particular, for high-pressure applications in a molten polymer filtration, has a screw-in piece (10), provided with a first threaded section (12) for fixing the filter device, and a second threaded section (14) for fixing a f... | 05/01/2007 |
| 7198714 | Gutter screen assembly with water tension breaker The present invention provides a gutter screen attachment and a ridged filter assembly for minimizing water film runoff and debris collection adjacent a screened gutter. The screen attachment comprises a superior breaker edge, an inferior breaker edge, and a screen-... | 04/03/2007 |
| 7186347 | Vibratory apparatus for separating liquid from liquid laden solid material A vibratory apparatus for separating a liquid from a liquid-laden solid material. The apparatus includes an inclined trough having a base with a first end and a second elevated with respect to the first end. A deck is attached to the trough base, the deck defining s... | 03/06/2007 |
| 7182754 | Containerless tissue sample collection trap A containerless tissue sample collection trap featuring, in the preferred embodiment, a flexible filter and an applicator having a shaft terminating in a distal end with a channel therein receiving a portion of the flexible filter, the combination of the applicator ... | 02/27/2007 |
| 7178675 | Drain water filter assembly A drain water filter assembly for filtering debris laden liquids. The filter assembly has an apertured filter holder constructed and arranged to be placed into a basin, tub or sink. A removable and disposable filter is provided for placement within and securement to... | 02/20/2007 |
| 7179377 | Filter for sludge filtration A sludge filter is comprised of a mesh filter media secured to a support net. The support net includes a front surface adjacent the filter media and a rear surface opposite the filter media, the rear surface having a plurality of outwardly extending nodes to define ... | 02/20/2007 |
| 7174688 | Non clogging screen A filter assembly is provided that has a filtering screen and a skeletal structure, the skeletal structure being attached to the filtering screen. At least one of the filtering screen and the skeletal structure form a plurality of downward extending channels. ... | 02/13/2007 |
| 7166316 | Fat replacement material and method of manufacture thereof The present invention provides a method for the manufacture of a fat replacement material suitable for use in the manufacture of food products. The method comprises the steps of: a) providing a substantially homogeneous aqueous flu... | 01/23/2007 |
| 7156145 | Apparatus and method for inserting parts into a mold A dispensing arrangement for inserting a part into a cast iron mold includes a dispenser apparatus configured to dispense a predetermined number of parts, a staging apparatus configured to position the parts in a selective orientation and a jig apparatus configured ... | 01/02/2007 |
| 7125491 | Screen and process for manufacturing a screen of this kind A flat or cylindrical screen includes rods and rod-bearing supporting elements. The rods have protrusions in the side walls which are received into inversely shaped recesses in a supporting element. The screen is manufactured by bending the supporting elements open ... | 10/24/2006 |
| 7122119 | Sieve separator A sieve separator and a method of slurry separation that uses two or more levels of filtration screens. In some embodiments, the filtration screens on different levels may be used to separate solids of various sizes at each level. ... | 10/17/2006 |
| 7117957 | Methods for drilling and lining a wellbore A method includes drilling and lining a wellbore, in one aspect by mounting a drill bit on a drill string including a section of expandable tubing and providing a tubing expander in the string, rotating the drill bit and advancing the drill string through a bore, an... | 10/10/2006 |
| 7108793 | Method of separating liquid from liquid laden solid material A method of separating a liquid from a liquid-laden solid material includes providing a trough having a deck defining a support surface with passages extending through the support surface. The liquid-laden solid material is deposited onto the support surface so that... | 09/19/2006 |
| 7090770 | Filter cloth and method for producing the same The invention relates to a filter cloth for a filter press and to a method for producing said filter cloth. The inventive filter cloth has a filtration section through which the filtrate reaches a filter element of the filter press, and an edging section which rests... | 08/15/2006 |
| 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 |
| 7048850 | Water screen A traveling water screen comprising an endless foraminous belt with flights. The foraminous belt forms a water screen extending from a lower end in a flowing stream to an upper end above the surface of the stream. The stream flows through openings in the foraminous ... | 05/23/2006 |
| 7041217 | Filter rings A filter ring includes a first filter member including a first end portion and a second filter member including a second end portion. The filter ring also includes at least one snap latch mechanism for detachably engaging the first end portion with the second end po... | 05/09/2006 |
| 7029555 | Diagonally joined cylindrical fabric and manufacturing method thereof A diagonally joined cylindrical fabric in the form of a cylindrical endless fabric is obtained by shifting ends of facing wefts of a non-endless fabric leftward or rightward and joining together the ends of the wefts to thereby form a joining portion inclined relati... | 04/18/2006 |
| 7005061 | Drain filter device A drain filter device includes a body formed from wire mesh having a plurality of side edge portions integral with each other and forming a substantially square shape. The body further has substantially planar top and bottom surfaces and includes a plurality of elon... | 02/28/2006 |
| 7000777 | Vibratory separator screens Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies. ... | 02/21/2006 |
