Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8042755 | Bar and groove pattern for a refiner plate and method for compression refining A refiner plate for a mechanical refining system, the plate including: a refining surface including bars and grooves, wherein the bars have a leading edge defined by an interior angle of between 150 degrees to 175 degrees. ... | 10/25/2011 |
| 7954745 | Refiner plate segment with triangular inlet feature A refiner plate for refining lignocellulosic materials has an injector inlet having a substantially triangular protrusion. The substantially triangular protrusion may feed the incoming lignocellulosic material into the refining zone and may distribute the material a... | 06/07/2011 |
| 7896276 | Refiner plates with high-strength high-performance bars A refiner plate for mechanical refiner of lingocelluosic material, the refiner plate including: a refining surface including bars and grooves, wherein the bars each have an upper section including a leading edge and a lower section including a root at a substrate of... | 03/01/2011 |
| 7766269 | Refiner stator plate having an outer row of teeth slanted to deflect pulp and method for pulp deflection during refining A refiner including: a rotor disc including a rotor plate including concentric rows of rotor teeth; a stator disc arranged opposite to the rotor disc, wherein the stator disc includes a stator plate; the stator plate includes concentric rows of stator teeth intermes... | 08/03/2010 |
| 7712694 | Disc refiner with plates having logarithmic spiral bars A special shape of bars on refining discs or plate segments of a rotating disc refiner is disclosed including a plurality of bars generally extending outwards towards the outer end of the disk across its surface, arranged in a single, two or more radial zones, the p... | 05/11/2010 |
| 7472855 | Refiner stator plate having an outer row of teeth slanted to deflect pulp and method for pulp deflection during refining A refiner stator plate having concentric rows of teeth wherein an outer row is at or near an outer periphery of the plate, and the outer row teeth include leading sidewalls slanted to deflect high-velocity refining particles moving along a radial line between the pl... | 01/06/2009 |
| 7458533 | Tooth refiner plates with varying feeding angles and refining method A method for refining material between opposing discs in a refiner including feeding the material to an inlet of at least one of the discs rotating one disc with respect to the other disc while the material moves radially outward between the discs, and subjecting th... | 12/02/2008 |
| 7419112 | Refining surface and a blade segment for a refiner A refining surface of a refining member, adapted for use with a refiner for defibrating a lignocellulose-containing material, is provided. Such a refining surface comprises a plurality of first grooves, each first groove being defined between two adjacent first bar ... | 09/02/2008 |
| 7350728 | Refining plate attached to a head in a pulp refiner A refiner plate has an outer circumferential edge, a front surface having comminuting projections, and a rear surface. The refiner plate also has and a single mounting opening radially inward from the outer circumferential edge. The refiner plate also includes a rad... | 04/01/2008 |
| 7350838 | Catch or locking element The invention relates to a catch, in particular a catch for furniture. Said catch comprises at least one first catch element, which has at least one spring-loaded locking part and a second catch element that forms a counter-locking part. According to the invention, ... | 04/01/2008 |
| 7347392 | Refiners and methods of refining pulp A refiner plate for forming accepts and exhaust from a pulp material includes a first side and a second side and defines a channel extending between the first side and the second side. The channel is operable to direct at least some of the exhaust and at least some ... | 03/25/2008 |
| 7322539 | Refining surface for a refiner for defibering material containing lignocellulose The invention relates to a refining surface in a refiner for defibering material containing lignocellulose, which refiner has two coaxially rotating refining surfaces. The material being defibered is fed between the refining surfaces that both have grooves and bars.... | 01/29/2008 |
| 7300540 | Energy efficient TMP refining of destructured chips A system and method for thermomechanical refining of wood chips comprises preparing the chips for refining by exposing the chips to an environment of steam to soften the chips, compressively destructuring and dewatering the softened chips to a solids consistency abo... | 11/27/2007 |
| 7300008 | Tooth refiner plates with varying feeding angles and refining method A refiner plate including: concentric rows of teeth and the teeth arranged facing radially inward, the sidewalls of the teeth are at an angles to radii of the plate such that the angle of teeth in a first row(s) of teeth differs from the angle of teeth in a second r... | 11/27/2007 |
| 7300550 | High intensity refiner plate with inner fiberizing zone Plate elements, a plate configuration, and associated system for thermomechanical refining of wood chips wherein destructured and partially defibrated chips are fed to a rotating disc primary refiner, where opposed discs each have an inner band pattern of bars and g... | 11/27/2007 |
| 7263755 | Method for the manufacture of fillings for utilization in the mechanical processing of aqueous paper fiber stock A method for fabricating fillings that are utilized in refiners for the purpose of refining paper fiber stock. The filling manufactured in accordance with the method of the present invention includes a base body, an overlay template on the base body and processing e... | 09/04/2007 |
| RE39688 | Tangential discharge disk refiner A papermaking refiner has two stationary disks mounted to the support structure of a fixed housing. A rotating disk is mounted on a shaft which extends through the housing. The support structure allows stock to circulate on both sides of the disk support structure, ... | 06/12/2007 |
| 7198216 | Refining element Refining elements for use with disc refiners for the processing of fibrous materials are disclosed. The refining element include a refining surface having a plurality of bars and intermediate grooves, with the bars having an upper surface and a pair of side surfaces... | 04/03/2007 |
| 7191967 | Refiner A refining surface for a refiner intended for defibrating lignocellulose-containing materials, the refiner having at least two refining surfaces arranged coaxially relative to each other, at least one of which rotates around a shaft, and between which the material t... | 03/20/2007 |
| 7188792 | Refiner rotor assembly with a hub having flow-through ports A refiner including a material-admitting inlet and an outlet; and spaced apart first and second refining discs mounted in the chamber. The refiner further includes a rotary third ref refining disc disposed between the first and second discs. A first path for the mov... | 03/13/2007 |
| 7172148 | Grooved pyramid disperger plate A disperger plate segment, for removing contaminants from recycled, or recovered, paper and packaging materials includes radially concentric rows of teeth. Each row of teeth includes teeth and channels disposed intermediate the teeth. Each of the teeth have an upper... | 02/06/2007 |
| 7070135 | Chipping apparatus with eccentric chipping tools A chipping apparatus includes a housing arranged about an axis of rotation and a chipping system within the housing rotating in a predefined direction about an axis of rotation. The chipping system has chipping tools that form a circular or ring-shaped chipping zone... | 07/04/2006 |
| 7007879 | Pair of opposed co-operating refining elements Apparatus for refining lignocellulosic material is disclosed having a pair of opposed co-operating refining elements intended for a disk refiner for the disintegration of the lignocellulosic material in a refining gap between two opposed counter-rotating refining di... | 03/07/2006 |
| 7000858 | Apparatus for producing fine powder An apparatus for grinding an organic material into a powder includes a first grinding member with a first grinding surface and a second grinding member with a second grinding surface. The first and second grinding members are rotatably positioned adjacent each other... | 02/21/2006 |
| 6989074 | Paper pulp refiner control system and method using active hydrostatic bearings A paper pulp refiner with control system employs active hydrostatic bearings for supporting the refiner rotor, at least in part, the hydrostatic bearings are defined between the refiner rotor plates (25, 55) and stator plates (22, 60) through openings ... | 01/24/2006 |
| 6935589 | Papermaking refiner plates and method of manufacture Replaceable refiner fillings (10) used for refining of lignocellulosic and other natural and synthetic fibrous materials in the manufacture of paper, paperboard, and other fiberboard products. The refiner fillings (10) include a pattern of blades (1... | 08/30/2005 |
| 6926216 | Material crusher A material crushing device including rotating rotors having first and second crushing surfaces which converge to a nip. One or both of the crushing surfaces may include projections and one or more of the crushing surfaces includes channels disposed at the nip for ej... | 08/09/2005 |
| 6915711 | Method and means for measuring stress forces in refiners Methods and apparatus for measuring the stress forces in refining disks are disclosed. The method includes providing a measuring surface comprising at least a portion of a plurality of refiner bars on the refining surface of a refining disk, resiliently mounting the... | 07/12/2005 |
| 6634583 | Process and device for the dispersion of a fibrous paper material Process and device for dispersing a fibrous paper web which comprises a substantially consistent fibrous paper material. The device includes an inlet for fibrous paper material, a stationary stator, and at least one rotatable rotor. The stator and the at ... | 10/21/2003 |
| 6616078 | Refiner plate with chip conditioning inlet A refiner plate segment for a refiner including opposed first and second refiner plates has radially inner and outer ends, multiple radially disposed bars, and grooves alternating with the bars. The base of at least one of the grooves has a variable base ... | 09/09/2003 |
| 6607153 | Refiner plate steam management system A refiner plate for the face of a refiner disc comprising a plurality of refiner segments arranged side-by-side on the face of the disc to form a substantially annular refining region. Each refiner segment has a plurality bars and grooves for refining a l... | 08/19/2003 |
| 6592062 | Refining element Refining elements for use in a disk refiner are provided, in which the refining elements include an outer surface with a plurality of raised bars separated by grooves, the raised bars including an upper surface having a first longitudinal edge and at leas... | 07/15/2003 |
| 6572040 | Coal grinding, cleaning and drying processor A coal processing mill incorporates integral systems for coarse coal dewatering, grinding, injection of a peptizing agent into the ground coal stream before it enters an agitation zone (where the peptization process takes place), passing the treated coal ... | 06/03/2003 |
| 6502774 | Refiner disk sensor and sensor refiner disk A sensor, sensor disk, sensor measurement correction system, and method used in measuring a parameter in the refining zone. The sensor includes a spacer that spaces its sensing element from the disk. In one preferred embodiment, the spacer is made of an i... | 01/07/2003 |
| 6422496 | Refiner for refining a fiber suspension A refiner for refining a fiber suspension includes a first disk which is rotatable or stationary, and a second disk which is rotatable. A first tackle is coupled with a first disk or the second disk. A second tackle is coupled with the other of the first ... | 07/23/2002 |
| 6402071 | Refiner plates with injector inlet A refiner for refining lignocellulosic material having opposed, relatively rotating, rotor and stator refiner plates. The refiner plates each have radially inner and outer edges and an inlet zone extending radially outward from the inner edge. The inlet z... | 06/11/2002 |
| 6402067 | Refiner for fibrous material A pair of refiner members comprises respective refiner bars which cooperate to refine pulp. At least one the refiner bars extends in a spiral pattern for imparting a screw-like pumping action to the pulp. The refiner bars of the cooperating refiner member... | 06/11/2002 |
| 6325308 | Refiner disc and method A refiner disc and segment for a rotary disc fiber refiner which has a plurality of radial fields each having an angular extent no greater than 30° and preferably no greater than 22° for reducing the amplitude and duration of load swings that take place... | 12/04/2001 |
| 6286771 | Two-stage micronizer for reducing oversize particles Integrated first stage and second stage reduction mechanisms reduce coal, minerals, biomass, and other materials. A portion of the reductive work is done in the first stage by passing centrally fed feed material centrifugally from rotating rings to counte... | 09/11/2001 |
| 6276622 | Refining disc for disc refiners Refining disks are disclosed including a plurality of ribs generally extending outwardly towards the outer end of the disk across its surface, the plurality of ribs having a uniform width and being curved with the shape of an involute arc with circular ev... | 08/21/2001 |
