Disk Patents (Class 209/271)
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Patent number: 8522983Abstract: A disc for releasable attachment to a shaft of a disc screen apparatus includes a hub having a bore and a single split defining a pair of opposing ends. The hub also has at least one flexible portion intermediate the opposing ends that permits the opposing ends of the hub to be separated a predetermined distance sufficient to allow the shaft of the disc screen apparatus to pass between the opposing ends into the bore. The hub has plurality of outer impacting portions configured for engaging materials to be classified and propelling the materials in a conveying direction when the hub is rotated. A mechanism is provided to secure the hub to the shaft so that the shaft extends through the bore.Type: GrantFiled: November 11, 2010Date of Patent: September 3, 2013Assignee: CP Manufacturing, Inc.Inventor: Robert M. Davis
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Patent number: 7434695Abstract: Multiple shafts are aligned along a frame and configured to rotate in a direction causing paper products to move along a separation screen. The shafts are configured with a shape and spacing so that substantially rigid pieces of the paper products move along the screen while non-rigid pieces of the paper products slide down between adjacent shafts. In one embodiment, the screen includes at least one vacuum shaft that has a first set of air input holes configured to suck air and retain the non-rigid paper products. A second set of air output holes are configured to blow out air to dislodge the paper products retained by the input holes.Type: GrantFiled: April 13, 2004Date of Patent: October 14, 2008Assignee: Emerging Acquisitions, Inc.Inventors: Engel Visscher, Sean Austin
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Patent number: 7261209Abstract: A modular multi-disc assembly for use in material separation screens and a method of application to those screens are provided. The modular multi-disc assembly includes an inner securing hub that clamps onto the drive shaft of a material separation screen. The modular multi-disc assembly further includes an outer multi-disc module split into halves with each half mounting separately onto the inner securing hub. Multiple discs can be replaced at one time as opposed to replacing each individual disc in a typical screen. The inner securing hub spaces the outer multi-disc module away from the drive shaft so that the primary wear concern reduces to the resilient discs on the outer multi-disc module, allowing for multiple outer multi-disc module replacements before needing to replace the inner securing hub.Type: GrantFiled: December 31, 2004Date of Patent: August 28, 2007Assignee: Bulk Handling Systems, Inc.Inventors: Kim R. Duncan, Roger D. Korstad
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Patent number: 5791491Abstract: An apparatus (110) for extracting impurities from a pulpous slurry. The apparatus has a housing (111) and an auxiliary chamber (113). The housing has a separation chamber (127) having stack of disks (159) spaced from each other so as to form channels (172) therebetween. The disks are mounted to a drive shaft (160) which is rotatably driven by a motor (161). The action of the rotating disks cause impurities to be projected to the outermost portion of the separation chamber while the desired pulpous fibers pass between through the channel to an accept tube (193) for collection.Type: GrantFiled: September 15, 1995Date of Patent: August 11, 1998Inventor: Robert Singleton, Jr.
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Patent number: 5692619Abstract: An apparatus for filtering suspensions is provided with rotatable annular vertical disks (4) covered with filter material and partly submerged in the suspension to be filtered. Each disc is provided with a number of cells (22) for receiving filtrate from the suspension as the disc is rotated. The cells of each disc communicate with a central filtrate chamber (7) via respective accumulation chambers (30) formed by wall means (31) in the filtrate chamber. Each accumulation chamber of each disc extends axially past the disc and has an outlet (32) which also extends axially past the disc. The advantage is that a more concentrated coarse fraction of the suspension can be achieved.Type: GrantFiled: June 5, 1995Date of Patent: December 2, 1997Assignee: Beloit Technologies, Inc.Inventor: Roger Haeffner
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Patent number: 5665207Abstract: A strainer for paper making capable of accomplishing maceration and screening of a paper feedstock with high efficiency and being simplified in structure and manufacturing. The strainer is arranged in proximity to a rotor and formed with a plurality of recesses on a surface thereof opposite to the rotor. Also, a screening apparatus for paper making which uses such a strainer is disclosed.Type: GrantFiled: September 27, 1991Date of Patent: September 9, 1997Assignee: Aikawa Iron Works Co., Ltd.Inventor: Yoshihiko Aikawa
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Patent number: 5441157Abstract: A suspension containing fine and coarse particles is sprayed under high pressure by way of spray nozzles (10) against a rotating filter medium (7), so that the suspension is separated into a fine fraction, which passes through the filter medium and which contains said fine particles, and a coarse fraction, which does not pass through the filter medium and which contains said coarse particles. According to the invention the filter medium (7) is rotated by way of a drive motor (6) at a speed such that coarse particles and liquid developing on the side of the filter medium are removed from the filter medium substantially as the result of the centrifugal force the coarse particles and liquid are subjected to. In consequence the filter medium is efficiently kept clean during operation, which increases the capacity and improves the separation efficiency.Type: GrantFiled: January 12, 1994Date of Patent: August 15, 1995Assignee: Celleco Hedemora ABInventor: Roland Fjallstrom
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Patent number: 5297683Abstract: A resin processing system in which a mixture of resins, preferably a mixture of anionic and cationic resins, is separated by a laminar or essentially laminar flowing fluid through a separator module, wherein the anionic particles are removed from the top of the module, and the cationic particles are removed from the bottom of the module. The separated particles can be reused, with or without regeneration of the resins, or can be discarded. Preferably, the mixed resin is cleaned by use of one or more vibrating screen and rotating sprayers which spray water prior to introduction into the separation module. Furthermore, the cleaned mixture can be used without separation. The resin processing system can be used to clean and separate resins which have been used, or to condition resins which have not been used, in water purification processes.Type: GrantFiled: April 7, 1992Date of Patent: March 29, 1994Assignee: AKS, Inc.Inventor: Alfred Stengel, III
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Patent number: 5124029Abstract: A device for fractionating pulp suspensions has a series of vertical filter sheets attached to a horizontal shaft. Suspension is sprayed against the sheets to effect a separation of coarse and fine solids. Cleansing liquid is also sprayed against the sheets to keep the filter holes open and the fabric sheets are movable with respect to the sprays.Type: GrantFiled: July 23, 1990Date of Patent: June 23, 1992Assignee: Celleco ABInventors: Roland Fjallstrom, Rune Frykhult
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Patent number: 5116490Abstract: An improved rotary screen for high volume water screening includes a rectangular truss having a forward bearing surface supporting a rotary screen element supported by a central rotating hub and a plurality of radial beams connecting to a peripheral beam. A curved support on the truss forward surface transfers screen load during use between the peripheral beam to the truss.Type: GrantFiled: March 21, 1990Date of Patent: May 26, 1992Inventor: Herman Fontenot
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Patent number: 4844789Abstract: A slurry of comminuted cellulosic fibrous material (e.g. paper pulp) is acted upon so that particles contained in the slurry are separated out from the slurry and introduced into a second liquid flow, while maintained under superatmospheric pressure. A partition divides a liquid tight pressure resistant vessel into first and second distinct chambers isolated from each other except by a slit at a mid-portion. An inlet for the slurry and an outlet for the first liquid are connected to the first chamber, and an inlet for the second liquid and an outlet for the second slurry to the second chamber. A screening disk is mounted for rotation in the vessel so that it fills the slit, with portions disposed in both the first and second chambers.Type: GrantFiled: June 29, 1988Date of Patent: July 4, 1989Assignee: Kamyr ABInventor: Kjell U. W. Lundqvist
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Patent number: 4579652Abstract: Disk screen shaft assemblies have an array of concentric annular toothed disks mounted in axially spaced relation on and along shaft perimeters, with the inner diameters of the disks having bevelled edges welded to the shaft perimeters in a manner to confine the welding to the grooves defined by the bevelled edges with the shaft perimeters. Method and apparatus for mounting and welding the disks successively on the shaft perimeters attains accurate, warp free and effective mounting and welding of the disks to the shaft perimeters.Type: GrantFiled: October 28, 1983Date of Patent: April 1, 1986Assignee: Beloit CorporationInventor: Joseph B. Bielagus
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Patent number: 4303207Abstract: Screening apparatus for fractionating material suspensions has a screen gap which is defined by a rotatable member and a stationary member. One of these members is provided with at least one projection which extends into the screen gap to inhibit clogging of the gap with coarse suspension materials. Any coarse suspension materials stuck in the screen gap can be removed from the screen gap by a wiper element extending from the rotatable member and overlapping the screen gap.Type: GrantFiled: February 15, 1980Date of Patent: December 1, 1981Assignee: Sunds Defibrator AktiebolagInventor: Alf I. Lindstrom
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Patent number: 4082227Abstract: A mobile slurry mixer and spreader comprising a rotatable screen attached to and rotated by a drive and disposed within a mixing tank over a discharge opening. The rotatable screen prevents debris from entering the discharge opening while allowing a slurry material to enter the discharge opening. The mixing tank is mounted on a mobile chassis and a spreader is in fluid communication with the discharge opening of the tank. An agitator shaft is horizontally disposed within the tank and a plurality of mixing paddles are attached to the shaft and arranged to move slurry material toward the discharge opening while providing an improved mixing of the slurry material. The mixed slurry material passing through the discharge opening is distributed to the area over which the chassis travels.Type: GrantFiled: July 21, 1976Date of Patent: April 4, 1978Assignee: Bio-Life Company, Inc.Inventors: Merle V. McGrane, Earl F. McGrane
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Patent number: 3985233Abstract: A seedling cleaning system has an infeed end and an outfeed end with an agitating conveying surface therebetween in order to shake and remove the soil from seedlings while continuously conveying them. A plurality of agitating cams are laterally spaced along a plurality of longitudinally spaced rotatable shafts. An overhead water spray may be provided towards the outfeed end for further cleaning.Type: GrantFiled: December 11, 1975Date of Patent: October 12, 1976Assignee: Weyerhaeuser CompanyInventor: Charles A. Sherman