Stepped Patents (Class 209/314)
  • Patent number: 11718793
    Abstract: Method and apparatus to facilitate recycling of at least one fraction of bitumen-containing materials. This can be accomplished by dissolving the at least one fraction, for example, maltenes or asphaltenes in roofing shingles, into at least one solvent. In one aspect, the apparatus comprises a dissolution vessel, a tumbler positioned therein, and at least one solvent distributor. The tumbler is configured to facilitate wetting the bitumen-containing materials with solvent. In a second aspect, a system comprises the apparatus, a solid-liquid separator, for example, a vibratory screen, and at least one solvent-fraction separator, for example, a flash drum. The at least one solvent can comprise one or more solvents useful to extract the at least one fraction. In a third aspect, a first fraction is extracted from the bitumen-containing materials with a first solvent composition, then a second fraction is extracted from the remaining bitumen-containing materials with a second solvent composition.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: August 8, 2023
    Assignee: Shingle Resource Recycling, LLC
    Inventors: Robert William Palmer, Stephen Woodson Craig, David Woodson Craig, Randell Gween Shelton, Jr.
  • Patent number: 11679941
    Abstract: A vibratory conveyor system includes a product transfer pan linked to a shaker base via spring arms. Vibration transferred from the shaker base to the spring arms causes the product transfer pan to oscillate and convey products across the product transfer pan. The product transfer pan has apertures defined therein, such that excess coatings on (or fallen from) the conveyed products tend to fall through the apertures. A chute situated beneath the apertures collects the fallen coatings, and preferably diverts it to a side of the conveyor for collection and subsequent reuse or disposal. The chute is preferably linked to the product transfer pan such that the chute and pan oscillate in tandem.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: June 20, 2023
    Assignee: Vibratorv Solutions. LLC
    Inventors: James L. Karpinsky, Joshua C. Friede, Brian J. Gilbertson, Scott J. Rose, James M. Bakos
  • Patent number: 11305316
    Abstract: A support structure for vibrating screening machine with either a flat screen deck or a crowned screen deck which use a coped and then capped variation of the same prefabricated rectangular tubular cross-member but in rotated orientations. The machine further providing support for a crowned screen media without using a crowned cross-member by providing stringers with differing vertical heights with the centermost stringer having the most height above a flat top cross-member. A plurality of crown straps coupled to a top surface of a cross-member, where the crown straps have a C-shaped portion at one end which has a portion thereof coupled to a top surface of a cross-member.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: April 19, 2022
    Assignee: Terex USA, LLC
    Inventors: Ryan Anthony Mumm, Alexander Evan Ross, Michael Peter Stemper, Nicholas Samuel Grady, Josh Edward Ellis, David Bryan Stroup
  • Patent number: 11198158
    Abstract: A flip-flow screener machine includes a carrier frame with primary, drive-induced vibration, to which a vibrating frame is coupled in a freely oscillating manner by means of elastic transmission elements and is excited and set to vibrate secondarily by the carrier frame via said transmission elements, transverse carriers being arranged on the carrier frame and on the vibrating frame, a transverse carrier on the vibrating frame lying downstream of a transverse carrier on said carrier frame, with a flexible screen bottom being arranged between two transverse carriers and detachably secured to said transverse carriers, each of the screen bottoms including at least one undercut portion by means of which they can engage behind an undercut on the transverse carrier, and two adjacent screen bottoms abutting one another directly at their front ends.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 14, 2021
    Assignee: HEIN, LEHMANN GMBH
    Inventors: Markus Kirchner, Ernst Grubl, Rolf Kadel, Matthias Sattler, Peter Palmen
  • Patent number: 10532381
    Abstract: A method, apparatus and system for flowing a fluid from an inlet flush nozzle onto tiered plates in a trough is provided. Material may fall from a deck in a vibratory separator, such as a shale shaker, into the trough, which is attached to the separator. The trough has a main inlet and the inlet flush nozzle that opens to tiered plates. An external pipe may feed the fluid into the main inlet and the inlet flush nozzle to lubricate the tiered plates in the trough. Material falling from the vibratory separator may float on the fluid to flow toward an outlet of the trough. A single plate with perforations may be used instead of the tiered plates to permit the fluid to penetrate the perforations to suspend the material, allowing the material to flow across the single plate to an outlet.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 14, 2020
    Assignee: M-I L.L.C.
    Inventors: Colin Stewart, Zakhar Chizhov, Mazin Philip, Mandeep Singh Ahuja, Richard Bingham
  • Patent number: 10307793
    Abstract: A disc assembly with a substantially rigid disc core includes a first section removably attached to a second section and mounted to a disc screen shaft. The disc core includes a transport surface extending between a left side of the disc core and a right side of the disc core, and a replaceable coating of textured wear material is deposited along the transport surface.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: June 4, 2019
    Assignee: EMERGING ACQUISITIONS, LLC
    Inventor: Christopher Parr
  • Patent number: 9579692
    Abstract: A system for eliminating residue from a flow of harvest containing fruit, includes a motorized conveyor for feeding the flow of harvest towards an inclined surface that is arranged to allow the flow of harvest to travel over it, the surface including air passages. The system further has a blower for blowing air through the passages in order to eject residue from the flow of harvest as it is routed over the surface.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: February 28, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Daniel H. A. M. Le Nevé, Vincent Rico
  • Patent number: 8678197
    Abstract: Powder (b) cut and attached to tablet pieces (T1, T2) can be removed smoothly. A tablet dividing feeder (A1) cuts and divides a tablet (T) in a receiving pocket into two halves with a fixed blade as a rotor rotates. Powder removing plates (64a, 64b, 66) are installed in a tablet supplying passage (14) of the feeder. The powder removing plate (64b) is vibrated by a vibration motor (71) to peel the powder (b) attached to the tablet on the powder removing plate and drop the powder (b) from a slit (a). The peeling operation is performed by temporarily leaving the tablet pieces (T1, T2) between the powder removing plates (64a, 64b). The powder removing plate (64b) is fluctuated by a plunger, and the tablet pieces may be left and dropped due to the fluctuation. The tablet piece drops along the powder removing plate (66), and the attached powder is peeled to be guided to a packaging process through a supply opening (90).
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: March 25, 2014
    Assignee: Yuyama Mfg. Co., Ltd.
    Inventors: Naoki Koike, Mitsuhiro Mitani
  • Patent number: 8636150
    Abstract: An upper deck in a top flume before a lower deck in a bottom flume, each deck is adjustable from form about 10 to about 70 degrees, or from about 20 to about 45 degrees, and has a frame divided into a grid containing blank or screen panels that have openings to selectively permit smaller aggregate to pass through, while larger aggregates pass over the screens. The top flume has an opening for feeding the larger aggregates to the top of the deck adjacent the flume, and a bottom with an opening for feeding smaller aggregates under the deck. The bottom flume has an upstream side with an opening at the bottom to receive the smaller aggregates from the upstream adjacent flume and a downstream side having an opening adjacent the bottom of the side to discharge the larger aggregates, and the bottom has an opening it discharge the smaller aggregates.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 28, 2014
    Assignee: Dewar of Virginia, Inc.
    Inventors: Uriah Shelby Akers, Jr., Wendell B. Shrewsbury, Keith W. Martin, Sr.
  • Patent number: 8251226
    Abstract: The apparatus for separating residues from a thermal waste treatment into one fine fraction and one coarse fraction comprises a housing (1) abutting on swinging elements (2), said housing having a plurality of diagonally offset plates (3.1-3.5) that are disposed one beneath the other and are connected to said housing (1) by their side edges, and being equipped with means (5) for generating a vibration component oriented in the direction of the plates (3.1-3.5) disposed diagonally offset downward. The apparatus further comprises one suction line (6) as well as an inlet opening for a gas that may be passed between the plates for wind sieving. Residues or slag from a waste treatment plant or an incineration plant are supplied to this apparatus in order to separate them into at least one fine fraction and one coarse fraction.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 28, 2012
    Assignee: Martin GmbH für Umwelt- und Energietechnik
    Inventors: Johannes Martin, Michael Busch, Eva-Christine Langhein, Dragutin Brebric
  • Patent number: 7954644
    Abstract: A separator system may include a first trough having an inlet end, a downstream, outlet end and a trough floor, a first screen section supported in the trough spaced from the trough floor, the first screen section having a first end and a second downstream end, a material-retaining surface disposed at the downstream end of the first screen section, the material-retaining surface disposed at an angle relative to the first screen section to limit the movement of material across the first screen section, and a vibratory generator coupled to the trough. The separator system may alternatively or in addition include a gate disposed at the end of the screen section, the gate having a first position and a second position.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: June 7, 2011
    Assignee: General Kinematics Corporation
    Inventors: Daniel T. Lease, Dan Britton, Steve C. Wiechmann
  • Publication number: 20100206782
    Abstract: A cone lip assembly for use in directing particulate material from a vibrating screen unit to a cone crusher includes separate mounting brackets to facilitate the attachment and detachment of the cone lip assembly from the vibrating screen unit. The cone lip assembly includes a main body defined by a pair of side plates that transition from an infeed end to a discharge end. The cone lip assembly includes a pair of mounting brackets that allow secure attachment and detachment of the entire cone lip assembly from the vibrating screen unit. The mounting brackets are formed separate from the main body of the cone lip assembly.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 19, 2010
    Applicant: METSO MINERALS INDUSTRIES, INC.
    Inventors: Richard C. Britting, Marko Makinen, George W. Schlemmer, James Michael Anderson, David Brian Cody, D. Leon Luadzers
  • Patent number: 7703612
    Abstract: An apparatus for separating solids from a drilling fluid that includes a basket having two opposed spaced-apart side walls having first ends and second ends, the first ends spaced apart by an end wall connected to each of the side walls, the basket further including a bottom wall through which a fluid outlet passage is defined, a plurality of screening surfaces having a front edge and a back edge and positioned within the basket between the side walls with each screening surface spaced apart vertically from adjacent screening surfaces and the back edge spaced apart from the end wall of the basket, wherein the back edge of each screening surface is lower than the front edge of the corresponding screening surface, a plurality of weirs, each weir retained along the back edge of a corresponding screening surface and spaced apart from the end wall to define a fluid passage between each weir and the end wall, wherein each weir has a top edge extending to a weir height above the back edge of the corresponding screen
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: April 27, 2010
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Brian Carr
  • Patent number: 7665614
    Abstract: A screening arrangement in a vibrating screen for screening of material, such as crushed stone, gravel or the like, the screening arrangement having one or more screening decks placed at different heights and provided with directing means, where the directing means are provided on the underside of at least one upper screening deck to direct the screened material upstream onto a screening deck located below the at least one upper screening deck.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: February 23, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Publication number: 20100012556
    Abstract: A material separation system for separating material into different sizes of material. The material separation system includes a support structure, a rotating screen, and a feed plate, to feed the material to the exterior of the rotating screen. The system can be used to separate a desired material from an aggregate material which includes the desired material.
    Type: Application
    Filed: October 6, 2008
    Publication date: January 21, 2010
    Inventor: Daniel L. Pohle
  • Patent number: 7637378
    Abstract: A screening deck for the screening of crushed stone material includes a plurality of screening elements arranged adjacent one another. At least one side of each screening element is non-parallel with respect to a longitudinal direction of the screening deck. The screening deck includes at least two different types of screening elements which are arranged at different heights in the screening deck for creating narrowing passages and/or winding paths and/or steps for the material traveling on the screening deck.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: December 29, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Publication number: 20090211949
    Abstract: A separator system may include a first trough having an inlet end, a downstream, outlet end and a trough floor, a first screen section supported in the trough spaced from the trough floor, the first screen section having a first end and a second downstream end, a material-retaining surface disposed at the downstream end of the first screen section, the material-retaining surface disposed at an angle relative to the first screen section to limit the movement of material across the first screen section, and a vibratory generator coupled to the trough. The separator system may alternatively or in addition include a gate disposed at the end of the screen section, the gate having a first position and a second position.
    Type: Application
    Filed: May 4, 2009
    Publication date: August 27, 2009
    Applicant: GENERAL KINEMATICS CORPORATION
    Inventors: Daniel T. Lease, Dan Britton, Steve C. Wiechmann
  • Publication number: 20090120848
    Abstract: Polycrystalline silicon fragments are sorted into defined particle fractions in a flexible manner independent of initial particle size distribution and desired fraction size by a first mechanical screening into a fine fraction and residual fraction, followed by optoelectronic sorting of the residual fraction.
    Type: Application
    Filed: March 28, 2007
    Publication date: May 14, 2009
    Applicant: WACKER CHEMIE AG
    Inventors: Marcus Schaefer, Reiner Pech
  • Patent number: 7527153
    Abstract: A separator system may include a first trough having an inlet end, a downstream, outlet end and a trough floor, a first screen section supported in the trough spaced from the trough floor, the first screen section having a first end and a second downstream end, a material-retaining surface disposed at the downstream end of the first screen section, the material-retaining surface disposed at an angle relative to the first screen section to limit the movement of material across the first screen section, and a vibratory generator coupled to the trough. The separator system may alternatively or in addition include a gate disposed at the end of the screen section, the gate having a first position and a second position.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: May 5, 2009
    Assignee: General Kinematics Corporation
    Inventors: Daniel T. Lease, Dan Britton, Steve C. Wiechmann
  • Patent number: 7188730
    Abstract: A screening system designed to provide separation of multiple fractions of New Screens Fines. News Screens Fines (“NSF”) contain a mix of compressed, unmarketable recyclables that are generally less than four inches in size created as a by-product of current Material Recovery Facility (MRF) plant designs used to process single-stream recyclables. The NSF separation system uses a series of primary and secondary classification apparatus to separate materials into marketable products that meet legislative requirements. A series of screens, conveyors and air moving systems are designed to separate waste from fractions of glass, plastic and ferrous metals that can be sold.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: March 13, 2007
    Inventors: Michael C. Centers, Stephen A. Young
  • Patent number: 7004332
    Abstract: A disc screen apparatus for classifying a stream of mixed recyclable materials of various sizes and shapes, including newspaper, clean mixed paper, magazines, plastic bottles, glass bottles and jars, cans, and the like. The apparatus has an inclined fixed first disc screen section and an inclined articulating second disc screen section whose angle of inclination can be independently adjusted via a hydraulic cylinder or other angular adjustment mechanism in order to improve the separation of newspaper and/or clean mixed paper without impairing the ability of the fixed disc screen section to separate mixed containers. The first and second disc screen sections are supported by first and second frames that carry the parallel driven shafts and discs that form the disc screen sections. The frames have complementary mating surfaces that limit the range of articulation of the second disc screen section.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: February 28, 2006
    Assignee: CP Manufacturing, Inc.
    Inventor: Robert M. Davis
  • Patent number: 7000776
    Abstract: Screen assemblies for a vibratory separator and methods of using them, the screen assemblies in one aspect including a first screen portion having a first end and a second end spaced apart from the first end, a second screen portion adjacent the second end of the first screen portion, the second screen portion projecting down from the second end of the first screen portion.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 21, 2006
    Assignee: Varco I/P, Inc.
    Inventors: Joseph C. Winkler, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Jr., Charles N. Grichar, Guy L. McClung, III
  • Patent number: 6868972
    Abstract: A vibratory separator including basket apparatus for holding screening apparatus, at least one upper screen apparatus in the basket, the at least one upper screen apparatus having a fluid exit end, at least one lower screen apparatus in the basket below the at least one upper screen apparatus, fluid flowable from the at least one upper screen apparatus down onto the at least one lower screen apparatus, flow diffusion apparatus mounted below the fluid exit end of the at least one upper screen apparatus and above the at least one lower screen apparatus, so that fluid flowing down from the at least one upper screen apparatus flows onto the flow diffusion apparatus and is diffused thereby, and vibrator apparatus for vibrating the basket and the screen apparatus therein.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: March 22, 2005
    Assignee: Varco I/P, Inc.
    Inventors: Kenneth W. Seyffert, Gary Steven Strong, Guy L. McClung, III
  • Patent number: 6820748
    Abstract: A vibratory screening machine including an outer frame, an inner frame resiliently mounted on the outer frame, a plurality of screening units mounted in stacked and staggered relationship on the inner frame, each of the screening units including a screen-supporting surface and a chamber underlying the screen-supporting surface and an outlet duct in communication with the chamber, an undersize trough underlying the plurality of stacked and staggered screening units, a plurality of inlet ducts in the undersize trough with each of the inlet conduits in communication with one of the outlet conduits, and an oversize trough underlying the undersize trough and the stacked and staggered screening units.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: November 23, 2004
    Assignee: Derrick Manufacturing Corporation
    Inventor: Thomas M. Fallon
  • Patent number: 6820749
    Abstract: A method of manufacturing a large stationary, aggregate processing screening tower by fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules, transporting the preassembled weldment modules to a field work site where the tower is to be erected on a foundation, aligning the modules and stacking the modules in layers and then bolting adjacent modules together. A large stationary, aggregate processing screening tower has weldment modules preassembled with aggregate processing equipment internal within the modules. The preassembled modules are stacked up on one another and secured together and can receive aggregate product at the top module and the product is processed by screening and sizing as it moves downwardly by gravity through the modules and their processing equipment for final clarification and collection of the product.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: November 23, 2004
    Assignee: Astec Industries, Inc.
    Inventors: J. Don Brock, William R. Gray
  • Patent number: 6715611
    Abstract: A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator in one particular aspect being a shale shaker, the vibratory separator including a basket for holding screening apparatus, the basket having two sides spaced-apart by a first end at which the material is introduced into the basket and a second end spaced-apart from the first end, components separated from the material exiting the basket from the second end, vibrating apparatus connected to the basket for vibrating the basket, screening apparatus mounted in the basket, the screening apparatus having at least a first portion and a second portion, the first portion at the first end of the screen and the first portion lower in the basket than the second portion, receptacle apparatus below the screening apparatus for receiving material components flowing through the screening apparatus, maintenance apparatus for maintaining height of a portion of the screening apparatus, and a pool of the mate
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: April 6, 2004
    Assignee: Tuboscope I/P, Inc.
    Inventors: Mark Crabbe, David L. Schulte, Charles N. Grichar
  • Patent number: 6607080
    Abstract: A screen assembly for a vibratory separator, the screen assembly having a first screen portion having a first end and a second end spaced apart from the first end, and a second screen portion formed integrally of or connected to the second end of the second screen portion. A screen assembly with a first portion of screening material and a second raised portion of screening material, the second raised portion extending from a material introduction end of the screen assembly to a material exit end thereof, the raised portion, in one aspect, culminating in an apex above the first portion of screening material.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: August 19, 2003
    Assignee: Varco I/P, Inc.
    Inventors: Joseph Charles Winkler, Thomas C. Adams, David L. Schulte, Kenneth W. Seyffert, David W. Largent, Charles N. Grichar, Guy L. McClung, III
  • Patent number: 6490941
    Abstract: An elliptic motion driving apparatus for a step screen in which the elliptic motion of an elliptic motion driving unit is transferred to a driven link so as to make steep movable plates, connected by a movable column, perform elliptical movement in a longitudinal direction of the movable column, includes a driving rotation cam combined to a power transmission shaft rotating in linkage with a worm reduction gear of a driving motor, a horizontal motion eccentric shaft axially combined to the driving rotation cam so that a horizontal eccentric bearing of the horizontal motion eccentric shaft moves horizontally along a horizontal motion guiding rail, and a vertical motion eccentric shaft combined to the horizontal motion eccentric shaft through an eccentric rotation cam so that a vertical eccentric bearing of the vertical motion eccentric shaft moves vertically along a vertical motion guiding rail as the horizontal motion eccentric shaft rotates.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: December 10, 2002
    Inventor: Sung Hur
  • Patent number: 6431366
    Abstract: A vibratory screening machine including an outer frame, an inner frame resiliently mounted on the outer frame, a plurality of screening units mounted in stacked and staggered relationship on the inner frame, each of the screening units including a screen-supporting surface and a chamber underlying the screen-supporting surface and an outlet duct in communication with the chamber, an undersize trough underlying the plurality of stacked and staggered screening units, a plurality of inlet ducts in the undersize trough with each of the inlet conduits in communication with one of the outlet conduits, and an oversize trough underlying the undersize trough and the stacked and staggered screening units.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: August 13, 2002
    Assignee: Derrick Manufacturing Corporation
    Inventor: Thomas M. Fallon
  • Patent number: 6412644
    Abstract: A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator including a basket for holding screening apparatus, the basket having two sides spaced-apart by a first end at which the material is introduced into the basket and a second end spaced-apart from the first end, certain components separated from the material exiting the basket from the second end, vibrating apparatus connected to the basket for vibrating the basket, screening apparatus mounted in the basket, the screening apparatus having at least a first portion and a second portion, the first portion lower in the basket than the second portion, and receptacle apparatus below the screening apparatus for receiving material components flowing through the screening apparatus.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: July 2, 2002
    Assignee: Varco I/P, Inc.
    Inventors: Mark D Crabbe, David L. Schulte, Charles N. Grichar
  • Publication number: 20020079251
    Abstract: A vibratory separator with a base, vibrating apparatus, a screen container on the base, the screen container having a plurality of spaced-apart drain holes, a plurality of spaced-apart screens in the screen-container, said screens oriented vertically within the screen container, and the screens positioned so that screened fluid passes through the screens and flows from the container through the plurality of spaced-apart drain holes.
    Type: Application
    Filed: October 4, 2001
    Publication date: June 27, 2002
    Inventors: David L. Schulte, Thomas C. Adams, Kenneth W. Seyffert, David W. Largent, Guy L. McClung, Jeffrey E. Walker, Hector M. Murray
  • Publication number: 20020056668
    Abstract: A mobile screening unit for screening bulk material. The screening unit comprises a first screener, a second screener, and an elongated mobile support frame having a longitudinal axis. The first screener is mounted to the support frame and extends longitudinally thereon. The first screener has an inlet for receiving the bulk material containing large-sized, medium-sized, and small-sized particles. The first screener also has a first outlet for releasing large-sized particles and a second outlet for releasing medium-sized and small-sized particles. The first screener is used for screening the bulk material along a first direction substantially parallel to the longitudinal axis of the support frame. The second screener is mounted to the support frame and extends longitudinally thereon.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 16, 2002
    Inventors: Jean-Denis Dube, Eric Houle, Frederic Gauvin
  • Patent number: 6250478
    Abstract: A disc screen apparatus is disclosed for separating mixed recyclable materials of varying sizes and shapes. The disc screen apparatus has an enclosure or frame with an input, a container discharge location and a paper discharge location. A first plurality of shafts and second plurality of shafts are rotatably supported by the frame. The first plurality of shafts form a first disc screen disposed in a first plane and the second plurality of shafts form a second disc screen at least a portion of which is disposed in a second plane. The second plane is disposed beneath and angled with respect to the first plane such that the planes at least partially overlap. One or more motors rotate the first and second plurality of shafts. Each shaft has a plurality of discs positioned along it. The discs are offset between adjacent shafts such that discs on each shaft interleave with discs on an adjacent shaft but do not touch the adjacent shaft. The discs are substantially square in shape with radiused corners.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: June 26, 2001
    Assignee: C P Manufacturing Inc.
    Inventor: Robert M. Davis
  • Patent number: 6142308
    Abstract: An apparatus for separating components of free-flowing material contained in a cotton-like, mat-like carrier, includes an air accelerator providing an accelerated air stream for tearing apart the carrier to form flakes. Positioned downstream of the air accelerator is a separation deck which includes a screen surface and a trough. A vibratory unit is associated to the separation deck for oscillation thereof, thereby realizing a separation of the components.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: November 7, 2000
    Assignee: Ventilatorenfabrik Oelde GmbH
    Inventors: Sakti Ghosh, Michael Coxon, Klaus Gnegel
  • Patent number: 6138834
    Abstract: A recovering system includes at least one shale shaker having at least one screen and a hydrocyclone manifold system; a recovery tank having a cavity and a base, the tank having at least one inlet and at least one outlet, the recovery tank having at least one agitation system for creating force within the cavity of the recovery tank; and at least one recovery shaker having at least one screen.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: October 31, 2000
    Assignee: Sun Drilling Corporation
    Inventor: Ricky Southall
  • Patent number: 6079568
    Abstract: A vibrating dual deck dewatering unit which includes a lower screen deck and an upper screen deck. Material being processed by the unit is discharged from the upper screen deck onto the lower screen deck in such a manner that excess water is allowed to backflow beneath the upper screen deck, while solids are directed in an opposite direction. The upper screen deck is provided with a jagged discharge lip which creates interruptions or gaps in the flow of discharged solids. The excess water which is discharged from the upper screen deck is allowed to backflow through the interruptions or gaps in the discharged solids that are created by the jagged discharge lip of the upper screen deck.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: June 27, 2000
    Assignee: Deister Machine Company
    Inventor: Dale Loshe
  • Patent number: 6000554
    Abstract: A screening conveyor (10) for conveying particulate matter, such as comminuted wood fiber, in a forward direction while also screening to separate particles over a predetermined size from small particles under a predetermined size. The screening conveyor includes a frame (17, 50) and first and second conveyor bed sections (16, 30) supported by the frame. Each conveyor bed section defines a longitudinal axis and an upper surface (22) formed from a tiled series of trough shaped trays (20). Each tray defines a step including an ascending surface portion (96). The first and second conveyor bed sections are reciprocated in opposing balanced fashion along the longitudinal axis by a motor (48), cam assembly (54) and connecting rods (64, 66). The received particulate matter is carried on the stepped upper surfaces of the reciprocating conveyor bed and thrown forwardly from tray to tray. The upper surfaces further each define a plurality of apertures of predetermined size.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: December 14, 1999
    Assignee: ComCorp, Inc.
    Inventor: John H. Hughes
  • Patent number: 5950840
    Abstract: A bar screen is combined with a wire or punch screen which is suspended beneath the screen deck from a pair of oscillating bar support beams so that a single bar screen, screen combination, may not only size materials for thickness but remove small particulate material from the chips or materials which pass through the screen deck of the bar screen.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: September 14, 1999
    Assignee: Beloit Technologies, Inc.
    Inventor: Eduard J. Thoma
  • Patent number: 5941395
    Abstract: Used single use camera bodies (10) and miscellaneous loose parts (130, 132, 134) are dumped into a receiver conveyor (72) from which they move to a metering conveyor (88) which delivers them to a series of vibratory grid separators (106, 108, 110) having grid bars (124) separated by slots (126) configured such that each camera body can be positioned with at least one lengthwise corner (148-154) located in the slot and the center of gravity (156) of the camera body positioned above the slot. Camera bodies are thus conveyed lengthwise along the vibratory grid separators to enable loose parts to fall more readily through the slots. Camera bodies are then separated by types at a plurality of sorting stations (186).
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: August 24, 1999
    Assignee: Eastman Kodak Company
    Inventors: Jon Juhani Aho, Alan Victor VanDeMoere
  • Patent number: 5904254
    Abstract: A vibratory particle separating apparatus for separating a supply of particulate material into two streams according to particle size. The apparatus includes an inclined particle separating screen secured in a mount frame and characterized by multiple steps disposed perpendicular to the path of material flow. The mount frame is suspended in a support frame by resilient float mounts and vibrated by a vibratory motor mounted on the mount frame. The particulate material is loaded on the top inclined end of the vibrating screen and as the material cascades down the steps of the screen, particles smaller than a selected size fall through one of multiple, adjacent openings provided in each step and are collected or discharged for further processing in a stream below the screen, whereas larger particles are collected or discharged in a separate stream at the foot of the screen.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: May 18, 1999
    Assignee: Tinsley, Inc.
    Inventors: Travis M. Tinsley, Douglas M. Tinsley, Gary G. Gathright, Christofer B. Blank, Justin R. Price, Lorina J. White, Philip E. Begley
  • Patent number: 5769240
    Abstract: A screening system, preferably a finger screening system, for screening particulate material is provided.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 23, 1998
    Assignee: Western Wire Works, Inc.
    Inventors: Paul H. Middour, Frederick W. Oldenburg, Cletus E. Riedel, Thomas E. Teeter
  • Patent number: 5749471
    Abstract: A vibrating screen for the sizing of granular material such as gravel, sand, crushed stone, etc., having a frame (1) and a screen body (2) supported on springs (6), directional oscillating movements being imparted to the screen body by a motor powered vibrator mechanism (3). The screen has two or more screen decks (11-13), each one divided into three component screens (14a-c, 15a-c, 16a-c) having successively decreasing inclinations in a direction towards the discharge end (9) of the screen, each lower screen deck furthermore having an increased inclination in relation to the nearest deck above.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: May 12, 1998
    Assignee: Svedala-Arbra AB
    Inventor: Anders Andersson
  • Patent number: 5735409
    Abstract: Detachable screen cloths (14) are fixed on a screen cloth element (11) having a rigid support frame (12, 13) serving as a holder and intended to be fixed in the screen frame (10) of a screening machine. The detachable screen cloths (14) have a rigid screen cloth frame (30, 31) surrounded at least partially by elastomeric material. The rigid mounting frame (12, 13) of the screen cloth element has a guide device (32, 33) which is laterally open for receiving and holding the screen cloth (14). The screen cloth (14) is in sliding engagement with the guide device (32, 33) during the insertion thereof into the guide device. The screen cloth (14) and the guide device (32, 33) have inter engaging surfaces preventing, during the screening operation, relative movements between the screen cloth (14) and the rigid mounting frame (12, 13) of the screen cloth element in directions making an angle with the plane of the screen cloth.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: April 7, 1998
    Assignee: Trellex AB
    Inventor: Mats Anders Malmberg
  • Patent number: 5641070
    Abstract: A shale shaker has been developed which, in one aspect, has one or more upper screens and one or more lower screens with an upper screen at a discharge end of the shale shaker and a lower screen disposed to receive material discharged from a discharge end of one of the upper screens. In one aspect a portion of a lower screen underlies the discharge end of the upper screen. In another aspect a solid flowback pan prevents material falling through the upper screen(s) from falling onto the lower screen(s); and, in another aspect, the pan prevents material on a top of the lower screen(s) from falling into a bottom sump of the shale shaker which receives material which has fallen through the screen(s).
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: June 24, 1997
    Assignee: Environmental Procedures, Inc.
    Inventor: Kenneth W. Seyffert
  • Patent number: 5462175
    Abstract: This invention concerns a screen lining for a screening machine whose screen frame has parallel supporting sections running in the direction of conveyance of the screened material, with plate-shaped screen elements made of plastic that form the screen surface and have locking devices at least on the sides facing the supporting sections with which they can be locked on strips having corresponding locking devices, which strips in turn have locking devices on the lower side for detachable connection to the supporting sections.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: October 31, 1995
    Assignee: Western Wire Works, Inc.
    Inventor: Anton Bokor
  • Patent number: 5398815
    Abstract: A waste material separating apparatus and method of separating waste landfill material which apparatus and method includes a frame and a vibratory screening deck or tier within the frame, the screening deck having a plurality of generally parallel, straight rod elements to act as bludgeons on the waste material. The rod elements are removably extended from a transverse rail. Waste material to be separated into a coarse material and a finer material is discharged onto the rod element. The separating apparatus has an eccentric rotating shaft secured to the deck to impart vibratory motion to the rod elements so that the free ends of the vibratory fingers vibrate in a generally vertical direction, and bludgeon and break up the compacted solid waste landfill material.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: March 21, 1995
    Assignee: The Read Corporation
    Inventor: Robert J. Hadden
  • Patent number: 5337901
    Abstract: An apparatus and process for screening a product grade of particulate matter from a feed-stream of particulate matter is provided. Specifically, the apparatus is a vibration screening action machine which vibrates, including motion having a component thereof perpendicular to the plane of the screen deck, at least one screen deck having a mesh defining the lower limit of the product grade. Such vibration screening action machine is optimized for ensuring the throughput of particulate fines through the mesh defining the lower limit of the product grade and thus substantially removing particulate fines from the product grade by setting the screen deck at a relatively low angle, as measured from horizontal, of less than 15 degrees.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: August 16, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Dean A. Skaer
  • Patent number: 5333738
    Abstract: A method is proposed for recovering valuable substances, particularly from construction site wastes and industrial trash as well as a system for implementing the method in which the essential sorters are disposed in a closed container which can be placed onto an elevated foundation. The foundation is formed by intersecting walls which simultaneously serve as partitions for various bunkers.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: August 2, 1994
    Assignee: Maschinenfabrik Bezner GmbH & Co. KG
    Inventors: Dieter Fuchs, Peter Strohhacker
  • Patent number: 5322170
    Abstract: A waste material separating apparatus and method which comprises a frame and a vibratory screening deck or tier within the frame, the screening deck having a plurality of generally parallel, straight rod elements to act as bludgeons on the waste material. The rod elements are removably extended from a transverse rail. Waste material to be separated into a coarse material and a finer material is discharged onto the rod element. The separating apparatus has an eccentric rotating shaft secured to the deck to impart vibratory motion to the rod elements so that the free ends of the vibratory fingers vibrate in a generally vertical direction, and bludgeon and break up the compacted solid waste landfill material. The solid material is progressively moved from the tall to short end of the frame by forward rotary motion of the rotary shaft and falls off the ends of the vibratory rod elements onto the lower tiers to decompact and break up and tumble the waste material.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: June 21, 1994
    Assignee: The Read Corporation
    Inventor: Robert J. Hadden
  • Patent number: RE38367
    Abstract: A recovering system includes at least one shale shaker having at least one screen and a hydrocyclone manifold system; a recovery tank having a cavity and a base, the tank having at least one inlet and at least one outlet, the recovery tank having at least one agitation system for creating force within the cavity of the recovery tank; and at least one recovery shaker having at least one screen.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: December 30, 2003
    Assignee: Sun Drilling Products Corporation
    Inventor: Ricky Southall