Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 6837973 | Apparatus for electrically coating a hot-rolled steel substrate A process and apparatus are provided for producing an electrolytically coated, hot-rolled steel strip without any intervening strips. The apparatus includes a chemical pickling section being combined in one line with an electrolytic coating section containing electr... | 01/04/2005 |
| 6656415 | Process and device for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc Process and device for precipitating solid compounds from zinc metal baths. Partial amounts of the metal phase containing these compounds are exposed to an acceleration higher than gravity and dissociated into fractions containing heavier or lighter compo... | 12/02/2003 |
| 6506294 | Process for regeneration of electrolytes from pickle liquor, in particular of NA2S04 from pickle liquor for stainless steel A process for regeneration of electrolytes, in particular Na2 SO4, from waste pickles created during picking of stainless steel, in particular stainless steel strips. The electrolytes are regenerated by adding Nax Hy | 01/14/2003 |
| 6478928 | Process for dewatering a pulp web The invention refers to a process for dewatering a pulp web, particularly a chemical pulp web, where dewatering takes place between twin wire belts or felts in an initial dewatering zone with a set area pressure and then in a second dewatering zone. It is... | 11/12/2002 |
| 6475345 | Device for feeding a pulp suspension with eccentric shaft adjustment A device for feeding a pulp suspension to a tissue machine includes a headbox having top and bottom lips defining a slice gap forming a free flow jet of the pulp suspension. The device also includes at least one eccentric shaft for setting the slice gap b... | 11/05/2002 |
| 6451194 | Process for preparing and replenishing an electrolyte in an electrolyte bath A process and apparatus for supplying a soluble metal compound to an electrolyte solution uses a powder wetting device in a loop from a working tank. The powder wetting machine supplies the powdered metal compound directly into the electrolyte solution wh... | 09/17/2002 |
| 6427706 | System for continuous treatment of steel strip A pickling tank for the continuous treatment of a steel strip includes a pickling trough and a recovery tank separated from one another by a linkage that allows for limited movement between the trough and recovery tank. The recovery tank includes a pair o... | 08/06/2002 |
| 6368464 | Device for feeding a pulp suspension to a dewatering installation The invention refers to a device for feeding a pulp suspension to a dewatering installation, particularly for a tissue machine. It is mainly characterized by one or several one-piece, wedge-shaped, steel lamella tip(s) being provided to separate the indiv... | 04/09/2002 |
| 6364930 | Process for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc A process and device are disclosed for precipitating solid compounds from the liquid zinc or liquid zinc-based alloys of a metal bath. According to the disclosed process, partial amounts of the metal phase containing the compound(s) are exposed to an acce... | 04/02/2002 |
| 6338773 | Device for dewatering solid/liquid suspensions, especially pulp suspensions A device for dewatering solid/liquid suspensions, especially pulp suspensions, where the suspension is dewatered between two belts, with one dewatering zone being a wedge zone. A pair of rolls downstream of the wedge zone impart both area pressure and lin... | 01/15/2002 |
| 6311849 | Device for dehydrating and washing suspensions of fibrous material The invention relates to a device for dewatering and washing fibre stock suspensions with two counter-rotating rolls (2, 3), a stock feed (4, 5) and a stock discharge (6). It is mainly characterized by the headbox (4, 5) at the two rolls (2, 3) being arra... | 11/06/2001 |
| 6306268 | Device for carrying out continuous electrolytic precipitation A device (1) for carrying out continuous electrolytic precipitation processes has a cathodic live cylinder (3) whose top surface is electroconductive over its whole useful width. An anode A is arranged concentrically to and spaced apart from the cathodic ... | 10/23/2001 |
| 6253818 | Device for changing reels at paper machines The invention refers to a process for changing reels at paper machines, particularly tissue machines. It is mainly characterized by adhesive being applied to an empty reel over almost the entire web width, the core shaft being placed thus prepared on the ... | 07/03/2001 |
| 6250314 | Process of pickling stainless steel A process and apparatus for pickling the surface of stainless steel strip feeds the stainless steel strip through a plurality of pickling tanks containing a hydrochloric acid pickling acid. The pickling acid bath is maintained at a temperature of at least... | 06/26/2001 |
| 6231729 | Apparatus for preparing and replenishing an electrolyte in an electrolyte bath An apparatus for supplying a soluble metal compound to an electrolyte solution uses a powder wetting device in a loop from a working tank. The powder wetting machine supplies the powdered metal compound directly into the electrolyte solution which rapidly... | 05/15/2001 |
| 6221213 | Process and device for measuring slice gap spacing at a paper machine headbox The invention refers to a process for measuring spacing at a paper machine headbox. It is primarily characterized by constant magnetic fields being generated at the headbox slice gap area, the intensity of these fields being measured and these measurement... | 04/24/2001 |
| 6217710 | Process for regulating a screw press The invention refers to a process for regulating a screw press, particularly for dewatering a pulp suspension. It is mainly characterized by the speed being varied as a function of the torque.... | 04/17/2001 |
| 6216610 | Process and device for incineration of particulate solids A process for the incineration of particulate solids, especially biological waste matter with low caloric value, feeds the solids into a combustion chamber of a furnace together with a sub-stoichiometric amount of fresh air to control the rate of combusti... | 04/17/2001 |
| 6214310 | Process for the extraction and regeneration of acids from spent acids Process and apparatus for regenerating spent acid liquor includes a primary roasting furnace for evaporating a substantial portion of the liquid from the spent acid to produce acid vapors and partially roasted metal salts. The partially roasted metal salt... | 04/10/2001 |
| 6206979 | Process and apparatus for treating a strip material in a liquid bath A process and apparatus for surface treatment of strip material with liquids, particularly for pickling rolled metal strip, guides the strip through the shallow treatment bath where the metal strip is treated. The treatment liquid medium is sprayed upward... | 03/27/2001 |
| 6197160 | Apparatus for dewatering a pulp web The invention refers to a process for dewatering a pulp web, particularly a chemical pulp web, where dewatering takes place between twin wire belts or felts in an initial dewatering zone with a set area pressure and then in a second dewatering zone. It is... | 03/06/2001 |
| 6161305 | Process and plant for mechanical and thermal dewatering of sludges A process and apparatus for mechanical and thermal dewatering of solid-liquid mixture, particularly industrial and sewage sludges, feeds the sludge to a dewatering device to produce a dewatered material which is then dried in a thermal drier. The dewatere... | 12/19/2000 |
| 6145766 | Screw device for dewatering and defibrating ligno-cellulose material The invention relates to a device for dewatering and defibrating ligno-cellulose material using a screw. It is primarily characterized by a defibrating element (9) directly adjoining the body (2') of a first screw.... | 11/14/2000 |
| 6120671 | Method and apparatus for electrolytic pickling a metallic strip A system and method is provided for electrolytic pickling a metal strip, where the electric current is conducted through the strip indirectly without electrically conductive contact between the strip and the electrodes. The strip is run vertically or subs... | 09/19/2000 |
| 6076956 | Device for distributing suspensions in a container The invention refers to a device for distributing suspensions, particularly pulp suspensions, in a tank 1, particularly a bleaching tower. It is characterized by a disc 6 being provided near the base 3 of the tank with at least one opening 7 so that the s... | 06/20/2000 |
| 6051109 | Apparatus for distributing fluffed pulp into a static bed reactor A process and apparatus for treating and particularly bleaching pulp contacts a pulp with a gaseous reaction medium in a reactor tower. The pulp is fluffed and refined before being added to the pulp bed and then homogeneously permeated with the gaseous re... | 04/18/2000 |
| 6033579 | Red mud dewatering and washing process The invention covers a process for dehydration/filtration, and washing of red mud, if applicable with addition of sand, particularly from the Bayer process for aluminum production from bauxite, in which filters are used and caustic is washed out on the fi... | 03/07/2000 |
| 6006444 | Process and a device for reducing dust deposits on the drying hood or duct work of a paper machine The invention relates to a process for reducing dust deposits on the drying hood of a paper machine. It is primarily characterized by additional fresh air being blown over the upper side of the paper machine drying hood. The invention also relates to a de... | 12/28/1999 |
| 6003684 | Device for dewatering solid-liquid suspensions A device for dewatering solid-liquid suspensions, in particular pulp suspensions, in which the suspension is dewatered between two belts and a dewatering zone is formed in the shape of a wedge between the two belts. The wedge height at its end closest to ... | 12/21/1999 |
| 5980850 | Process and plant for extraction or recovery of acids from solutions of these acids Process for extraction or recovery of acids, in particular hydrofluoric acid, hydrochloric acid and nitric acid, from solutions of these acids containing metal, by pyrohydrolytic treatment and subsequent absorption and/or condensation of the acid gases th... | 11/09/1999 |
| 5966838 | Process and apparatus for drying material with indirectly heated driers and for decontaminating waste gas A process and apparatus for drying material, particularly sludges, with indirectly heated driers includes a system for the thermal decontamination of exhaust air from the drier. Excess exhaust air from the drier loop is fed as secondary air to the heating... | 10/19/1999 |
| 5960559 | Process and apparatus for drying material A process and apparatus for drying material, in which a previous dried material is mixed into the wet material to be dried to produce a dried mixture of different particle sizes. The process for drying material requires less industrial equipment implement... | 10/05/1999 |
| 5940987 | Heat exchanger with concentric tubes A heat exchanger particularly for use in fluidized-bed driers, includes at least one supply pipe and one discharge pipe for the heat transfer fluid, and at least one heat exchange tube carrying the heat transfer fluid. In order to make the heat exchanger ... | 08/24/1999 |
| 5942096 | Method and apparatus for electro-depositing a metal or alloy coating onto one or both sides of a metal strip An apparatus and method for electro-depositing of a material on at least one side of a metal strip. The apparatus includes at least one casing having a first container section adapted to store under pressure a liquid including the material, a second conta... | 08/24/1999 |
| 5938913 | Process and device for electrolytic treatment of continuous running material Process for electrolytic treatment of continuous running material in which the material runs through an electrolytic liquid and electric potential is applied to the material. In order to guarantee freedom from differential potential in the material to be ... | 08/17/1999 |
| 5918978 | Device for mixing chemicals into a fibrous material suspension The invention refers to a device for mixing chemicals into a pulp suspension, where a high-speed rotor (5) with an open center is mounted inside a mixing chamber (2). It is mainly characterized by at least one further high-speed rotor (5') with open cente... | 07/06/1999 |
| 5868903 | Device for dewatering and/or washing suspensions, in particular suspensions of fibrous materials The invention refers to a device for dewatering and/or washing suspensions, especially fibre stock suspensions, with two dewatering rolls rotating in opposite directions, where at least a further two guide rolls, especially press rolls, are provided and a... | 02/09/1999 |
| 5857406 | Screw press for separating liquids from solid-liquid mixtures A screw press for separating liquids from solid-liquid mixtures, especially pulp suspensions, which has a casing 2 provided with liquid passages, especially divided into segments 3, 3', as well as having a screw 4 rotating inside the casing, a shaft 5, pr... | 01/12/1999 |
| 5849202 | Rotary disc filtration process having means to prevent settlement of solids A process and device for the filtration of solid-liquid mixtures, in particular, solid-liquid suspensions with readily sedimenting substances, uses a filtration device such as a rotary filter optionally operating at an overpressure and in a pressure vesse... | 12/15/1998 |
| 5800694 | Process and plant for pickling materials made of steel, in particular stainless steel The invention concerns a process for pickling material strips made of steel, in particular stainless steel, where the strip passes through at last one pickling bath with at least one pickling acid. It is above all characterized by the fact that the acid c... | 09/01/1998 |
