Doffers Patents (Class 209/229)
  • Patent number: 9011693
    Abstract: The invention provides a process for separating a solution from magnetic resin portions, particles and/or fines by passing a solution containing the resin portions, particles and/or fines through a bed of particulate magnetic material.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 21, 2015
    Assignee: Orica Australia Pty Ltd
    Inventors: Gregory Mark Vero, Anthony Price, Colin Bruce Ritchie
  • Patent number: 8910795
    Abstract: A magnetic separator comprising a vibratory conveyor for vibratorily flowing non-ferrous articles and articles containing ferrous material within the magnetic field of a transverse extending magnet to magnetically capture the articles containing the ferrous material while allowing the non-ferrous articles to flow therepast. The magnet is periodically retractable to remove ferrous articles magnetically adhered thereto. The use of a set of transverse extending magnets enables a continuous on-the-go separation of articles containing ferrous material from non-ferrous articles without having to shut down the vibratory conveyor.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: December 16, 2014
    Assignee: Dynamic Air Inc.
    Inventors: James Steele, Leonard Williams
  • Patent number: 8808548
    Abstract: A magnetic separation apparatus, comprising: a separation tank to which wastewater containing flocculated magnetic flocs is supplied; a disk-shaped or a drum-shaped separator that adsorbs the magnetic flocs with magnetic force while being rotated, the separator being arranged in the separation tank; and a collection device that collects the magnetic flocs adsorbed by the separator, wherein the improvement comprises that a rotational direction of the separator in the wastewater in the separation tank is set to be the same as a flow direction of the wastewater flowing in the separation tank as well as a lower portion of the separator being under the wastewater in the separation tank.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 19, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Miyabayashi, Hisashi Isogami
  • Patent number: 8721882
    Abstract: A magnetic fluid cleaning system that includes a housing and a driven magnetic roller disposed within the housing. A belt is arranged about the magnetic roller. The belt having magnetic particles from the fluid received thereon when within a magnetic field of the magnetic roller. The belt travels about the magnetic roller out of the magnetic field and the magnetic particles remain on the belt for removal.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: May 13, 2014
    Assignee: Magnetic Systems International
    Inventors: Ronald J. Hanna, Angela Schmidt
  • Patent number: 8715494
    Abstract: A device for separating ferromagnetic particles from a suspension may include a tubular reactor through which the suspension can flow and which has an inlet and an outlet, and a means for generating a magnetic field, which means is designed to generate a magnetic travelling field which acts on the reactor.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 6, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Vladimir Danov, Werner Hartmann, Heinz Schmidt, Andreas Schröter
  • Patent number: 8628668
    Abstract: A system, apparatus and method for magnetically separating a fluid flow passing through a pipeline are provided. A magnetic separator assembly having a plurality of elongate magnetic members is provided. Each magnetic member can have a first end and a second end. A cleaner plate can be provided that can move along the magnetic members. After the magnetic separator assembly is used to collect magnetic particles from a fluid flow in a pipeline, the magnetic separator assembly can be cleaned by sliding the cleaning plate along the magnetic members.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: January 14, 2014
    Inventor: Roger M. Simonson
  • Patent number: 8623216
    Abstract: The invention provides a system and process for separating residual magnetic resin from a liquid stream by passing the stream through or over permanent magnets located within the stream wherein the process also includes a means for releasing any resin retained by the permanent magnets and capturing the released resin.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 7, 2014
    Assignee: Orica Australia Pty Ltd
    Inventors: Gregory Mark Vero, Anthony Michael Browne
  • Patent number: 8562829
    Abstract: A magnetic separation apparatus comprising: a separation vessel into which waste water containing a coagulated magnetic floc is supplied; a drum separator that is provided in the separation vessel and adsorbs the magnetic floc with a magnetic force while being rotated; a scraper that is abutted against a surface of the separator and scrapes the magnetic floc adsorbed by the surface of the separator; a scraper guide that is connected to the scraper and discharges the magnetic floc scraped by the scraper; and a scraping brush that scrapes the magnetic floc scraped by the scraper from the scraper and guides the magnetic floc to the scraper guide, wherein a lower portion of the separator is submerged in the waste water in the separation vessel, a rotational direction of the separation vessel in the waste water is set to the same direction as a flow direction of the waste water flowing in the separator, and a rotational direction of the scraping brush is set to a direction opposite to the rotational direction of t
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 22, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hisashi Isogami, Satoshi Miyabayashi, Minoru Morita
  • Patent number: 8544654
    Abstract: A magnetic separator comprising a vibratory conveyor for vibratorily flowing non-ferrous articles and articles containing ferrous material within the magnetic field of a transverse extending magnet to magnetically capture the articles containing the ferrous material while allowing the non-ferrous articles to flow therepast. The magnet is periodically retractable to remove ferrous articles magnetically adhered thereto. The use of a set of transverse extending magnets enables a continuous on-the-go separation of articles containing ferrous material from non-ferrous articles without having to shut down the vibratory conveyor.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 1, 2013
    Inventors: Leonard Williams, James R. Steele
  • Patent number: 8505734
    Abstract: Disclosed herein are various inventive methods and apparatus related to removing magnetic materials from a liquid solution utilizing an apparatus employing a conveyor belt. The conveyor belt may have a forward run moving in a forward direction from a first pulley to a second pulley and a rearward run moving in a rearward direction from the second pulley to the first pulley. The apparatus may include a longitudinally extending magnet housing interposed between the forward run of the conveyor belt and the rearward run of the conveyor belt and interposed between the first pulley and the second pulley. At least one longitudinally extending magnet may be substantially sealingly enclosed in the magnet housing.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: August 13, 2013
    Inventor: David C. Wise
  • Patent number: 8474629
    Abstract: A tramp metal separation device for removing contaminants from a stream of raw materials that is being conveyed by a pneumatic conveying line. The tramp metal separation device includes a first housing, a drawer, and at least one actuator. The first housing has an inlet and an outlet that are connectable to the pneumatic conveying line. The drawer is supported with respect to the first housing such that the drawer is moveable between an extended position, where a plurality of magnets are positioned within the first housing and a retracted position, where the magnets are positioned outside of the first housing. A wiper assembly removes contaminants from the magnets as the drawer moves from the extended position to the retracted position. The actuator moves the drawer between its extended position and its retracted position.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: July 2, 2013
    Assignee: Industrial Magnetics, Inc.
    Inventors: Dan Allore, Brendan Ingalls
  • Patent number: 8360247
    Abstract: A magnetic separation apparatus (10) for separating magnetic materials from non-magnetic materials in a material flow comprising self cleaning magnetic separators (15) comprising: a cylinder (20) having a first end closer to a material flow than its second end in use, a piston (25) slidingly mounted within the cylinder (20), and a magnetic shaft (30) extending from the piston (25), the piston (25) and cylinder (20) adapted to move the magnetic shaft (30) between an extended position (31) and a retracted position (32), such that in the extended position (32), at least a sleeveless portion of an outer surface of the magnetic shaft (30) is exposed to the material flow and in the retracted position the magnetic portion is retracted substantially or wholly within the cylinder (20), the apparatus including a protected shaft wiper (120) and shaft seal (125) within the first end of the cylinder (20) for removing extracted magnetics.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: January 29, 2013
    Inventor: William John Baker
  • Patent number: 8132674
    Abstract: A tramp metal separation device includes a first housing having an inlet and an outlet, a first drawer and a second drawer. The first drawer and the second drawer each have a plurality of magnets and a wiper assembly, where each drawer is supported with respect to the first housing such that each first drawer is moveable between an extended position and a retracted position. In the extended position, the magnets of the respective drawer are positioned within the first housing and are adapted to be in contact with the stream of raw materials. In the retracted position, the magnets of the respective drawer are positioned outside of the first housing. The wiper assembly of each drawer removes contaminants from the magnets as the respective drawer moves from the extended position to the retracted position.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 13, 2012
    Assignee: Industrial Magnetics, Inc.
    Inventors: Dan Allore, John Godzik
  • Patent number: 8079466
    Abstract: The present invention is a packaging article that includes a first chamber defined by a sealed connection between a first film and a second film, a second chamber defined by a sealed connection between a third film and a fourth film, where the third film at least partially abuts the second film, and a third chamber defined by a sealed connection between the first film and the fourth film.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: December 20, 2011
    Assignees: 3M Innovatice Properties Company, 3M ESPE AG
    Inventors: Robert Lee, Brian A. Shukla, Robert W. Petrich, Arno Hohmann, Marc Peuker, John W. Dubbe
  • Patent number: 7841475
    Abstract: A continuously operating magnetic particle separating machine includes an inlet for receiving a material having magnetic particles mixed therein, an outlet for discharging the material after the magnetic particles have been separated therefrom, a first flow path extending between the inlet and the outlet, a first magnetic element positionable in the first flow path, a second flow path extending between the inlet and the outlet, and a second magnetic element positionable in the second flow path. The separating machine includes a control system including a diverter valve switchable between a first position for directing the material through the first flow path and a second position for directing the material through the second flow path, whereby the switching frequency of the diverter valve is responsive to a concentration of the magnetic particles in the material.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: November 30, 2010
    Assignee: Kalustyan Corporation
    Inventors: Rodolfo Ricardo, Savas Ozkan
  • Patent number: 7367457
    Abstract: In an arrangement which including a motor-driven system for the separation of non-magnetisable metals, vibrations and resonances which generally are present in such arrangement, are eliminated. This is accomplished by utilizing a drum mounted on and rotating about a stator, within which a magnetic rotor fitted with permanent magnets is eccentrically arranged and mounted on said stator. The stator is provided with a balance weight for mass balance.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: May 6, 2008
    Assignee: Steinert Elektromagnetbau GmbH
    Inventors: Götz Warlitz, Klaus Dieter Feistner, Uwe Habich, Harald Leinen
  • Patent number: 6902066
    Abstract: Disclosed is a removal unit for removing metallic alien materials, which is adapted to remove metallic alien materials such as metal fragments contained in powder or liquid raw materials. The removal unit includes an outer plate, an inner plate spaced apart from the outer plate, and magnet members coupled between the inner and outer plates. Each magnet member includes a cylindrical stainless steel rod, a magnet received in the stainless steel rod to extend from one end of the stainless steel rod to at least an intermediate portion of the stainless steel rod, a non-magnetic piece received in the other end of the stainless steel rod and coupled to the outer plate, and a fluorine resin coating formed over an outer peripheral surface of the stainless steel rod. A removal member is arranged to be slidable in a longitudinal direction along the magnet members while being in contact with the outer peripheral surfaces of the magnet members.
    Type: Grant
    Filed: June 9, 2001
    Date of Patent: June 7, 2005
    Inventor: Byeong Gon Yang
  • Patent number: 6760585
    Abstract: In a network comprising call handling services for mobile users, services being requested by the mobile user for an active call and wherein each user registers for services with a personal identification number (PIN), a method for updating said personal identification number during an active call, the steps of said method comprising: registering user initially with the network for services with user's personal identification number during an active call; signalling a user preference to update the personal identification number; and updating user's personal identification number during said active call.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: July 6, 2004
    Assignee: Siemens Information and Communication Networks, Inc.
    Inventors: Peggy M. Stumer, Dennis L. Kucmerowski
  • Publication number: 20030209472
    Abstract: A magnetic sweeper includes a tubular body made of a non-magnetic material, a magnet unit, and a slider made of a non-magnetic material. The magnet unit is disposed inside the tubular body, and is capable of attracting and retaining magnetically attractable pieces on an attracting portion of the tubular body. The slider is mounted on and is slidable along the tubular body such that movement of the slider on the tubular body can result in pushing of the magnetically attractable pieces out of the magnetic range of the magnet unit such that the magnetically attractable pieces can fall freely from the tubular body.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 13, 2003
    Inventor: Chieh-Jen Hsiao
  • Publication number: 20030021278
    Abstract: The invention relates to a method for setting up telecommunications connections, in particular packet-switched telecommunications connections, in the access area (SN, LM) of a local access (ER) comprising the following steps:
    Type: Application
    Filed: July 23, 2002
    Publication date: January 30, 2003
    Applicant: ALCATEL
    Inventors: Peter Domschitz, Thomas-Rolf Banniza
  • Patent number: 6513121
    Abstract: Periodically sending by a telecommunication controlled application an encrypted message to a licensed server to request permission to run and to obtain a list of permitted features. The license server application is executing on the same processor as the controlled application. Also resident on the same system is a license file which contains a list of applications that are permitted to run, the version number of the permitted applications and a list of permitted features. The license server is responsive to the encrypted message from the controlled application to read and decrypt the license file, read the serial number of the processor controlling the telecommunications system, compare the serial number obtained from the processor with the serial number stored in the license file. If there is a mis-match, no license is granted to the control applications and it will not be allowed to run.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: January 28, 2003
    Assignee: Avaya Technology Corp.
    Inventor: Robert J. Serkowski
  • Patent number: 6250475
    Abstract: A magnetic separator includes a housing defining a product flow path through which material may pass. The separator also includes a drawer and a plurality of non-magnetic tubes operatively connected to the drawer and within which are supported a corresponding plurality of magnets. The drawer is movable between a first position wherein the plurality of magnets are positioned within the product flow path and a second position wherein the plurality of magnets are withdrawn from the flow path. A stripper plate is disposed between the housing and the drawer. The stripper plate has a plurality of apertures corresponding to and in close conforming contact with the plurality of non-magnetic tubes and through which the plurality of tubes pass as the drawer is moved between its first and second positions.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Magnetic Products, Inc.
    Inventors: Ron W. Kwasniewicz, Dennis Trestain
  • Patent number: 5797498
    Abstract: A magnetic separator for separating a magnetic substance such as metal parts or workpieces from a nonmagnetic substance such as abrasives used in a barrel finishing includes an infeed passage along which a mixture of the workpieces and the abrasives is conveyed. A rotary drum is rotated in a direction crossing the infeed passage, and a magnet is mounted in the rotary drum so that the magnetic substance is attracted to a circumferential surface of the rotary drum. The workpieces picked up onto the rotary drum are conveyed along an outfeed package, and a demagnetizer establishes an alternating field in the middle of the outfeed passage along a direction in which the magnetic substance is conveyed along the outfeed passage. A sweeping brush is located on the infeed passage in the vicinity of the rotary drum so as to scrape the surface of the workpieces attracted to the surface of the rotary drum to sweep off granular abrasives adherent to the surface of the workpieces.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 25, 1998
    Assignee: Tipton Corp.
    Inventors: Hisamine Kobayashi, Katsuhiro Izuhara
  • Patent number: 5190159
    Abstract: A self-cleaning grate magnet made up of an enclosure having a discharge duct adjacent a product duct separated by a partition and a magnet tube frame having magnetic tubes fixed thereto. The magnetic tubes extend through first holes in the enclosure, the discharge duct and through second larger holes in the partition and into the product duct where the magnetic tubes collect ferrous material on their surface. Wiper bushings are slidably received on the magnetic tubes and disposed in the discharge duct. The wiper bushings are too large to pass through the second holes in the enclosure in the partition. The holes in the partition between the discharge duct and the product duct are substantially larger than the magnetic tubes so that ferrous material is carried by the magnetic tubes into the discharge duct. The wiper bushings are stopped by the discharge duct walls and wipe the ferrous material from the magnetic tubes as the magnetic tubes are pulled through the product duct.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: March 2, 1993
    Assignee: Eriez Manufacturing Company
    Inventor: Anthony J. Barker
  • Patent number: 5188239
    Abstract: A tramp metal separation device adapted to be removably inserted into a housing which directs pelletized raw material to an industrial machine and to separate tramp metal contaminants therefrom. A drawer frame having an outer face plate with a plurality of openings disposed therethrough is adapted to be removably inserted into the housing. A plurality of cylindrical magnets adapted to be inserted through the plurality of openings in the outer face plate are secured to a drawer plate. In one embodiment of the present invention, the at least one silicon-based O-ring disposed in a groove in on of the plates so as to form an air tight seal between the face plate and the magnetic drawer. Additionally, a plurality of silicon-based O-rings may be disposed in grooves on the inner surface of the openings so as to form a wiper mechanism to aid in removing particles from the magnets.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: February 23, 1993
    Assignee: Industrial Magnetics, Inc.
    Inventor: Michael W. Stowe
  • Patent number: 5066390
    Abstract: A magnetic separator includes a plurality of elongated magnetic members generally disposed with longitudinal axes extending in parallel relationship with one another. A first end plate is connected to adjacent terminal ends of the magnetic members to hold the magnetic members with the longitudinal axes generally defining a common plane. Non-magnetic sheathing members are disposed sheathing the entire longitudinal length of the magnetic members. A second end plate is connected to adjacent terminal ends of the non-magnetic members to provide longitudinal sheathing and unsheathing movement of the sheathing members with respect to the magnetic members for cleaning accumulated magnetic particles from the exterior surface of the non-magnetic members. The first and second end plates are adapted for reciprocating movement in the commonm plane, preferably in a direction generally perpendicular to the longitudinal axes of the magnetic members to reduce bridging and clogging of the material flow.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: November 19, 1991
    Inventors: Keith J. Rhodes, Scott D. Voorheis
  • Patent number: 4946589
    Abstract: A permanent magnetic filter is provided in a form that includes a closed vessel having an inlet plenum, a central filtering region, and an exit plenum. The central filtering region includes a plurality of magnet filter tubes arranged in a substantially uniform array that is supported in a manner which achieves satisfactory filtering, minimizes fluid pressure drop, and permits easy cleaning.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: August 7, 1990
    Assignee: Combustion Engineering, Inc.
    Inventor: James K. Hayes
  • Patent number: 4929345
    Abstract: A carpet sweeper for removing metallic staples, paper clips and the like from carpet wherein a semi-circular wire mesh fabric is secured to the forward end of a housing or base member and a magnet is secured to the bottom of the base member and extends along the trailing edge of the wire mesh fabric. The wire mesh fabric dislodges the metallic fasteners from the carpet and the magnet attracts and accumulates the dislodged fasteners. A scraper is removably mounted on the housing for removing the accumulated fasteners from the surface of the magnet, and a rod having a slotted magnetic end is provided for manually removing deeply embedded metallic fasteners from the carpet.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: May 29, 1990
    Inventor: Hilman J. Meador
  • Patent number: 4895647
    Abstract: A filtering apparatus filters cutting oil containing metal chips so that the filtered cutting oil can be recycled. The filtering apparatus includes a reservoir, a filtering drum journalled within the reservoir and having a filtering screen extending about the periphery of the drum, chip discharge device for carrying separated metal chips of the reservoir, a discharged chip receiving bin disposed outside of the reservoir adjacent to the discharge end of the chip discharge device and a filtered oil receiving bin disposed outside of the reservoir adjacent to a filtered oil discharge area of the reservoir. A permanent magnet is disposed outside the reservoir so as to attract metal chips to the bottom of the reservoir from where the chips are discharged by the chip discharge device.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: January 23, 1990
    Inventor: Tadao Uchiyama
  • Patent number: 4883584
    Abstract: A process for separating special steel components from lump shredder scrap includes first removing the ferromagnetic content from the shredder scrap and thereafter dividing the shredder scrap into a normal size fraction and an undersize fraction. The undersize fraction is then treated by separating the special steel content from the undersize fraction by a magnetic drum having a field strength above 0.2 tesla.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: November 28, 1989
    Assignee: Metallgesellschaft AG
    Inventors: Hans-Peter Sattler, Bernd Nichtweiss
  • Patent number: 4842721
    Abstract: A materials separator apparatus comprising a base supporting a ramp type of materials receiving surface sloped longitudinally and transversely with respect to the base for directing commingled dielectric items and electrically conductive items of nonferromagnetic materials deposited on its upper end portion along a fall path extended longitudinally and transversely downward of the surface, and a planar series of substantially parallel permanent bar magnets supported in contiguous rows in a plane substantially parallel to the material receiving surface and sufficiently close thereto for establishing along the surface a spatially alternating array of oppositely directed static magnetic fields which extend in substantially parallel relationship transversely of the surface at an oblique angle with the fall path of the commingled items.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: June 27, 1989
    Assignee: Raytheon Company
    Inventor: Ernst F. R. A. Schloemann
  • Patent number: 4818378
    Abstract: An apparatus (10) for handling parts (a,a') by magnetic attraction includes a cylindrical casing (18) of nonmagnetic material having an uninterrupted surface throughout its length and a magnet (20) for magnetically attracting parts (a,a') to the casing (18). Nonmagnetic ramps are spirally wound around the casing (18). A drive mechanism (26) rotates the magnet (20) relative to the ramp. The magnet (20) attracts the parts to the casing (18) and causes the parts (a,a') to rotate about the axis of the casing (18) while the ramps (30) cause the parts (a,a') to advance along the length of the casing (18). The ramps (30) include a multiple part segregating mechanism for segregating parts received and discharged along the length of the casing (18).
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: April 4, 1989
    Inventor: Eldon G. Elliott
  • Patent number: 4717469
    Abstract: A metal scavenging device is disclosed which includes a frame carrying a plurality of generally parallel spaced-apart scavenger elements. In one embodiment the elements are comprised of flat plates having parallel walls. In another embodiment the elements are comprised of plates having inclined walls with the walls adjacent plates forming V-shaped spaces. In another embodiment the elements are comprised of elongate cylinders. A control circuit is provided to apply electrical charges of opposite polarities to adjacent plates. The circuit is closed when metal bodies contact adjacent surfaces of the plates. Current flow through the bodies creates a magnetic field, and strong permanent magnets provide a flux attracting the field about the bodies which are wedged and captured between the plates. The circuit includes a normally closed circuit breaker switch together with an indicator bulb which provides a visual signal when a metal body makes contact between the plates.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: January 5, 1988
    Inventor: Anton Pirc
  • Patent number: 4667832
    Abstract: A magnetic can separator where a supply device drops crushed cans onto a mechanism that includes a non-magnetic separator disc positioned by a shaft for permitting rotation of the disc at a controlled speed, a plurality of magnetic members secured to the under surface of the disc for attracting magnetic cans and retaining them on the disc, and a guide secured adjacent to and above the top surface of the disc to engage any articles thereon and extending generally radially of the disc offset from its center to engage cans or articles on the upper surface of the disc and as the disc is rotated, the crushed cans are progressively stripped from the upper surface of the disc by the guide whereas the non-magnetic cans are thrown circumferentially from the disc substantially immediately upon deposit thereon. The separator disc can be positioned at an angle of up to about 50 degrees to the horizontal for improved operation.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: May 26, 1987
    Inventor: Nyles V. Reinfeld
  • Patent number: 4539102
    Abstract: A method and apparatus are disclosed for removing and counting artificial drill cuttings from a returning drill mud containing a mixture of both artificial and natural drill cuttings. The artificial drill cuttings are injected into the drilling fluid and supplied to a drill string and have magnetic properties, while the natural drill cuttings do not. A rotary magnetic drum having a first endless belt travelling therearound receives the cuttings mixture and the magnetic artificial cuttings adhere to the first belt by being attracted to the drum, while the natural drill cuttings do not, thereby permitting separation of the two. The artificial cuttings are removed from the drum by a second endless belt cooperating with the first endless belt to define a nip between them. The belts positively engage with and remove the artificial cuttings from the drum.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: September 3, 1985
    Assignee: Mobil Oil Corporation
    Inventors: William G. Boston, Robert T. Strong
  • Patent number: 4457838
    Abstract: A magnetic separator for mixtures of powdered plastic and metal comprises a housing having an inlet, a base plate and side plates. A plurality of vertically spaced staggered rows of laterally spaced pilot tubes span, extend through and are secured to the side plates to define a circuitous material falling path. An upright tube clearance plate is arranged intermediate the side plates and has a corresponding plurality of vertically spaced rows of laterally spaced apertures, oversized with respect to and loosely receiving the tubes defining clearance apertures. The clearance plate defines on one side an upright plastic feed chamber having an outlet in the base plate. An upright wiper plate is arranged between the clearance plate and one side plate having a corresponding series of apertures snugly receiving the tubes and defining with the adjacent side plate an upright metal feed chamber having an outlet.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: July 3, 1984
    Inventor: Ronald Carr
  • Patent number: 4420390
    Abstract: A magnetic separator for particulates containing prime material and ferrous particles includes a housing having a removable cover having a central throated inlet along its length. A pair of vertically and laterally displaced hollow metallic rolls are journaled upon the end walls and extend the length of the housing, and enclose an elongated semi-cylindrical permanent magnet within each roll, the magnets being of opposite polarity. A pair of elongated, vertically and laterally displaced flow control dampers extend along the length of the housing and are pivotally mounted thereon and define with the inlet and rolls a vertical first feed path for the particulates. A first elongated hopper underlies the first flow path and has an elongated outlet overlying a first conveyor for receiving and delivering prime materials from the housing. Second and third elongated hoppers are arranged upon opposite sides of the first hopper under the rolls respectively.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: December 13, 1983
    Inventor: Ronald Carr
  • Patent number: 4394264
    Abstract: A machine for filtering particles, in particular magnetically attractable particles, from a liquid comprises a housing having a vessel, a weir in the vessel subdividing same into an elongated treatment compartment having a predetermined compartment length and an outlet compartment, this housing being formed in the treatment compartment with a sump, and an inlet for introducing a liquid to be cleaned into the treatment compartment and an outlet for withdrawing liquid from the outlet compartment. In addition the apparatus has a carriage displaceable longitudinally on the vessel above the treatment compartment and suspending a vertical carriage frame in the treatment compartment, an array of horizontally extending spaced magnetic bars carried on the carriage frame in the treatment compartment, with the bars each having a bar length measured parallel to this treatment compartment that is substantially less than the compartment length.
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: July 19, 1983
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Werner Schimion, Josef Herbrand
  • Patent number: 4325717
    Abstract: Apparatus to remove dust, fibers, lint or other undesirable particles from air. Air ladened with dust, lint or other undesirable matter is drawn into a filtering housing to contact the surface of a rotatable screen-covered drum. The air passes through the drum while the particles remain on the drum surface. The air passes from a higher pressure area exterior of the drum into a lower pressure area within the center of the drum and is conveyed away. The particles are retained on the exterior surface of the drum which is covered by the fine mesh screen. The particles, which form a bat, are then separated from the rotating drum surface by being moved into contact with a smooth compressor roll cooperating with a flighted doffing to lift away the bat from the drum and drop it to a collection zone. Fixed rubber seals are located to contact the rotating edges of the drum.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: April 20, 1982
    Assignee: Continental Conveyor & Equipment Co.
    Inventor: John E. Crowley, Jr.
  • Patent number: 4134829
    Abstract: Magnetizable particles are separated from a sludge which includes fine-grained particles and the magnetizable particles suspended in a carrier by creating a laminar flow of the sludge over a surface which is disposed at an angle to the horizontal. The surface is included in a magnetic system which has a plurality of supra-conducting magnets with coils which are energizable to provide alternate north and south poles longitudinally and transversely of the surface. The supra-conducting magnets each have an end adjacent the surface and short-circuited opposite ends to amplify the magnetic force in the direction of the surface.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: January 16, 1979
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Hans Bender, Karl-Heinz Unkelbach, Wolf Zabel
  • Patent number: 4115262
    Abstract: Suspended contaminated particles are removed by magnetic separation from a liquid containing ferromagnetic particulate material to which the particles adhere. A plurality of radially extending filter discs are provided on a horizontally disposed rotatable shaft for rotation therewith, the liquid being directed toward the discs and through gaps provided therebetween. Permanent magnets are provided on the discs for producing local magnetic field gradients in the gaps, and the discs have non-magnetic portions outwardly of the magnets along the periphery of the discs. The particulate material is scraped from the discs which adhere thereto when the liquid passes the gaps, and the scraped material is moved outwardly of the discs.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: September 19, 1978
    Assignee: ASEA Aktiebolag
    Inventors: Rolf Gustavsson, Per Hedvall
  • Patent number: 4042492
    Abstract: A magnetic separator includes a channel, having a plurality of walls, one of which includes a vertically traveling conveyor belt; a magnetic coil is arranged on one channel wall for producing a high intensity magnetic field; inlet means is provided for introducing a carrier medium into the channel and an injecting means on a side channel wall opposite the magnetic coil and downstream of the inlet charges material into the medium. A doctoring member removes magnetic particles drawn to the conveyor belt and means spaced from said one wall removes non-magnetic particles and carrier medium.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: August 16, 1977
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Hanns Decker, Roland Pfeiffer, Lothar Wenz, Horst Cordes
  • Patent number: 3998741
    Abstract: A device for use in separating magnetically attractable particles from a stream of liquid in which they are entrained, and segregating the separated particles in a confined space. The separated particles may be periodically discharged from the confined space into a suitable container without interrupting the flow of stream of liquid. A window in the device permits the user to visually observe the separated particles moving by gravity from the stream of liquid to the confined space.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: December 21, 1976
    Inventor: Graham D. Councell
  • Patent number: 3980562
    Abstract: A magnetic separator is formed of a number of substantially parallel filter discs which are attached on a rotatable shaft extending radially therefrom with gaps between the discs. The discs are arranged to produce local magnetic field inhomogeneities in the gap between the discs. Stationary scraper means in the form of channel-like bodies of plastic material are arranged between each pair of discs with their free edges engaging the opposed faces of the discs. An endless belt is arranged to run in the channel for carrying out the material scraped from the discs to the outside.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: September 14, 1976
    Assignee: Allmanna Svenska Elektriska Aktiebolaget
    Inventor: Harald Nilsson
  • Patent number: 3960716
    Abstract: A magnetic system is mounted for rotation in a housing along the inner surface thereof. The housing is stationarily supported in a jacket having an inlet and outlet and defining with the outer surface of the housing a passage for a material containing magnetically attractable particles between the inlet and the outlet. As the material passes through the passage, the magnetically attractable particles are attracted to the outer surface of the housing and dragged along the same to a predetermined location.
    Type: Grant
    Filed: December 6, 1973
    Date of Patent: June 1, 1976
    Inventor: Heinrich Spodig
  • Patent number: 3959145
    Abstract: A magnetic separator for removing contaminations from a liquid to which a ferromagnetic particulate material has been added is formed of a plurality of discs arranged along a shaft parallel to each other with spaces therebetween, the bottom parts of which dip into a container for the liquid. The discs contain permanent magnets of substantial coercive field strength over at least the greater part of their areas. The ferromagnetic material and contaminants carried thereby are scraped off the surface of the discs by belts which surround the shaft and which extend outside the discs to discharge the material scraped off of the discs.
    Type: Grant
    Filed: February 8, 1974
    Date of Patent: May 25, 1976
    Assignee: Allmanna Svenska Elektriska Aktiebolaget
    Inventors: Bertil Lundquist, Harald Nilsson, Jorgen Zinck-Petersen