Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7166229 | Method and apparatus for extracting liquid present in a humid mass A system for extracting a liquid by pressing a humid mass, the system including at least one extraction channel, while extraction channel being provided with at least one inlet allowing to feed the extraction channel with the humid mass to be treated; with walls pro... | 01/23/2007 |
| 7021089 | Laundry appliance A laundry appliance such as a washing machine includes an outer housing and a drum rotatably mounted therein. The drum has an inner wall and an outer wall separate from the inner wall, the inner and outer walls being perforated to allow washing liquid to flow into a... | 04/04/2006 |
| 6604743 | Replaceable wearing surface for a sealing arrangement The replaceable wearing surface is for a sealing arrangement on drum end walls on a press drum that de-waters fiber suspensions radially into the drum through the shell of the drum. The wearing surface of the sealing arrangement has a wear ring and holder... | 08/12/2003 |
| 6378226 | Screen drum for drying permeable webs of goods Each screen drum design has, in front of the rotating screen drum which transports the web, a stationary screen cover whose purpose is retention of the dry air coming from the fan, uniform throughput of the air through the screen cover, and a uniform dryi... | 04/30/2002 |
| 6257028 | Device for treating a strip of fabric The treatment device includes a container for a treatment fluid, in which a drum around which the web loops rotates eccentrically. The drum is made up of axis-parallel, hollow, sealed rods and possesses a drum shaft structured as a hollow shaft, which tog... | 07/10/2001 |
| 6174369 | Device for impregnation of webs of porous materials A device for impregnation of webs of porous materials with a liquid impregnating medium under increased pressure comprises a roller rotatable about a horizontal axis, a trough arranged so that the roller is partially inserted in the trough to form a chamb... | 01/16/2001 |
| 6021536 | Mechanical desizing and abrading device A rotary barrel-type washer-extractor is provided with at least one slotted or apertured metal panel. The panel contains raised apertures or slots that protrude about 0.2 to 1 cm and have an opening about 0.3 to 1 cm in width. A method is also provided fo... | 02/08/2000 |
| 5768919 | Treatment device for textile webs A treatment device (100) for a textile web (1) comprises a drum (20), rotatable in a container (2) with a treatment liquid (4), around which the web (1) is wrapped. The ends of the drum (20) are supported on bearing plates (10) arranged near the fronts of... | 06/23/1998 |
| 5722264 | Single roll displacement wash press A single roll wash press comprising a housing and a drum rotatably mounted within the housing. The drum includes a perforated outer wall and a longitudinally extending centerline axis and is rotatable about the axis. The press further comprises a means fo... | 03/03/1998 |
| 5570594 | Device for direct-flow treatment of fiber-containing material A permeable drum for wet or dry treatment of textile material, paper or such permeable materials of a certain width comprises narrow sheet metal strips or narrow webs. The sheet metal strips extend in an axially parallel direction. Connector members betwe... | 11/05/1996 |
| 5525751 | System for moving a submerged web Apparatus for moving a submerged web through a liquid, comprising a cylindrical tube with ends adapted to prevent fluid flow out of said ends and/or with a peripheral area containing a plurality of uniformly sized and spaced apertures. A liquid pump, e.g.... | 06/11/1996 |
| 5460019 | Washer The invention concerns a drum washer. The washer has a shaft formed by two cones (46) placed with their bases against one another. The shaft can be used as a supporting structure for the drum. Vanes (48) can also be placed on it for assisting in collectin... | 10/24/1995 |
| 5421176 | Drum washer The invention concerns a drum washer. The washer has two plates (14; 18) located after each other in parallel with the drum, and the pulp to be washed is conducted between these plates. Between the plates there is a gap (22) closed by a flap valve (25) by... | 06/06/1995 |
| 5367894 | Apparatus and method for washing cellulosic pulp A flat bed, Fourdrinier-type, countercurrent washer for cellulosic pulp incorporates a pressing section at the downstream end thereof which includes the couch roll and additional rolls that carry out multiple mechanical pressing operations on the pulp aft... | 11/29/1994 |
| 5275024 | Paper pulp washing A wire-type pulp washing machine includes an endless moving foraminous wire which extends about a breast roll defining an on-running end and a couch roll defining an off-running end with a generally horizontal upper run of the wire extending between the r... | 01/04/1994 |
| 5235828 | Apparatus for low liquid wet treatment of a textile material Apparatus for low liquid wet treatment of a textile material in various forms, such as lengths of fabric in rope form or yarn in skein form, through a treating chamber in the presence of a treatment liquid with the textile material being circulated throug... | 08/17/1993 |
| 5221434 | Method for treating fiber suspensions A method and apparatus for the treating of fiber suspensions in the pulp and paper industry and particularly to a method and apparatus for washing fiber suspensions. The method is characterized in that the fiber suspension is fed into the treatment appara... | 06/22/1993 |
| 5203043 | Method for continuously intensively wetting a flat article, especially a textile strip The process for continuous intensive wetting of a textile strip with a wetting fluid, e.g., water, includes providing an outer surface of a permeable drum (1) with a permeable accompanying member (2) contacting the outer surface; pressing a textile strip ... | 04/20/1993 |
| 5119647 | Dyeing padder for the dyeing of warp yarn A dyeing padder for the dyeing of warp yarn includes a dyeing vat having at least two sectional and mutually connected vat chambers both used in a dyeing process with indigo dyes or alternatively, only one of the sectional vats is used, a displacement bod... | 06/09/1992 |
| 5116423 | Apparatus for washing pulp The present invention relates to a method and an apparatus for washing pulp according to which method the pulp is supplied onto a movable liquid-pervious support surface to form a substantially continuous layer; and washing liquid is supplied to the pulp ... | 05/26/1992 |
| 5052197 | Apparatus for flow-through treatment of textile material, paper or the like A highly permeable drum for the wet or dry treatment of textile material, paper or other permeable materials of a certain width consists solely of narrow sheet metal strips and narrow webs, the extension in width of which is oriented in the radial directi... | 10/01/1991 |
| 5046338 | Multiphase pulp washer Multiphase washing of pulp is accomplished on a fully pressurized drum filter by employing compaction baffles to increase the consistency of the pulp mat and by providing a separate pump for each wash zone so that there is no pressure difference between t... | 09/10/1991 |
| 5012657 | Machine for the continuous dynamic-fluid treatment of aggregated filiform materials Machine for the continuous dynamic-fluid treatment of grouped filiform materials, which includes in combination a device (9) to feed previously treated grouped filiform materials (T), a device (1) for producing separation or change of density, or separati... | 05/07/1991 |
| 4986881 | Method and apparatus for liquid treatment of and liquid extraction on a paper pulp It is desirable to be able to treat medium consistency (e.g. about 8-12% by weight) paper pulp suspensions with treatment liquid (e.g. a wash liquid), and to thicken the pulp to about 30-50% consistency at the same time. A moving (e.g. rotating) channel i... | 01/22/1991 |
| 4970879 | Apparatus for flow-through treatment of textile material, paper, or the like A highly permeable drum for the wet or dry treatment of textile material, paper or other permeable materials of a certain width has an outer shell comprising narrow sheet metal strips and narrow webs, the extension in width of which is oriented in the rad... | 11/20/1990 |
| 4952314 | Apparatus for treating pulp An apparatus for treating, e.g., washing or filtering, fiber suspensions having a consistency of 8-20%, the apparatus including at least on rotatable filtering surface, an arrangement for feeding the suspension to a treatment region of the apparatus, and ... | 08/28/1990 |
| 4938038 | Material processing system The invention relates to a device for the treatment of a material, in particular a web or material or pulp, which is made to pass between at least two endless, permeable belts, for instance screen belts or the like conveying means, in particular for the d... | 07/03/1990 |
| 4926520 | Method and apparatus for cleaning carpet tiles A method and apparatus for cleaning carpet tiles is disclosed. The apparatus which accomplishes the present method includes a machine having a frame structure, a loading station connected to the frame structure and adapted for receiving a carpet tile, and... | 05/22/1990 |
| 4922567 | Treating fabrics A method for preshrinking tubular knit fabrics in which the fabric is treated as a continuous length in tubular form. The elongated tube is continuously fed lengthwise into a series of liquid baths which include a wetting agent, scouring and washing const... | 05/08/1990 |
| 4912945 | Device for through-flow treatment of fabric, paper, or the like The permeable drum for the wet or dry treatment of textile material, paper, or other permeable materials of a certain width consists solely of narrow sheet metal strips or narrow webs. The sheet metal strips extend axially parallel, their extension in wid... | 04/03/1990 |
| 4894121 | Pressure pulp washer A method and apparatus for forming on the outside of a permeable, rotatable drum by feeding a pulp slurry through a mat forming and pressing zone, followed by a mat washing zone. In the mat washing zone, the mat is washed with liquid from the first source... | 01/16/1990 |
| 4890550 | Apparatus for treating fibre material containing liquid An apparatus for treating fibre material containing liquid, comprising two rotating drums (2, 3), an endless driven belt (17) pervious to liquid and gas and extending between and passing around the surfaces (8, 9) of the drums, a feeding device (10) for t... | 01/02/1990 |
| 4889146 | Apparatus for cooling a web Two endless belts are formed of steel mesh. The belts are run side-by-side spiralling into the center of the apparatus, reversed and spirally wound out of the apparatus with the outgoing convolutions interleaved between the incoming convolutions. The belt... | 12/26/1989 |
| 4849261 | Pattern forming saturator and method A saturator of the type comprising a chamber situated between a chamber defining element and a mandrel, in which a web is moved between the chamber defining element and the mandrel to impregnate the web with a saturant contained in the chamber includes at... | 07/18/1989 |
| 4829792 | Double drum batch washing machine A double drum batch washing machine comprises an inner cylinder, an outer cylinder, an inner helical transfer screw with the inner cylinder and an outer helical transfer screw within the space between the inner and outer cylinders. The inner helical trans... | 05/16/1989 |
| 4827741 | Pulp washer discharging a pulp slurry at a controlled consistency An air-tight vat under pressure completely encloses a rotatable drum. The vat is constructed so that it may be completely submerged in liquid. The vat has a liquid filled take-off chamber. The pulp is fed to the vat through a pulp inlet. The pulp is forme... | 05/09/1989 |
| 4821536 | Rotating drum end seal The seal has particular use as a seal in vats having a rotatable drum. The seal prevents material from getting between the ends of the drum and adjacent vat inside surface.... | 04/18/1989 |
| 4811574 | Apparatus for flow-through treatment of textile material, paper, or the like A permeable drum for the wet or dry treatment of textile material, paper, or other permeable materials of a certain width has a screen-like cover supported solely on narrow sheet metal strips or narrow webs. The sheet metal strips extend axially parallel,... | 03/14/1989 |
| 4745935 | Submerged nozzles in two-zone bath where conveyor belts pass through a slotted wall In apparatus for treating a product in a liquid bath having two different temperature zones separated by a slotted wall and equipped with at least two continuous conveyor belts arranged to transport the product while captured between the belts through one... | 05/24/1988 |
| 4702943 | Pattern forming saturator and method A saturator of the type comprising a chamber situated between a chamber defining element and a mandrel, in which a web is moved between the chamber defining element and the mandrel to impregnate the web with a saturant contained in the chamber includes a ... | 10/27/1987 |
