With Overload Release Means Patents (Class 241/32)
  • Patent number: 9174219
    Abstract: A radially projecting member (e.g., a paddle assembly) including a pin having a head; a paddle pivotally engaged to the head; and a shear member engaged to the head and to the paddle, the shear member being constructed and arranged to fracture to permit pivotal rotation of the paddle relative to the head.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: November 3, 2015
    Assignee: Scott Equipment Company
    Inventors: Richard V. Lucas, Glen A. Jeurissen, Richard R. Lucas
  • Publication number: 20150107232
    Abstract: A hydraulic system for controlling the position of a movable jaw of a jaw crusher includes a hydraulic cylinder having a piston with a piston rod for positioning the movable jaw. The hydraulic cylinder has a bore side space for containing a hydraulic fluid taking up crushing forces exerted by the movable jaw on the piston rod, and an annular side space containing a hydraulic fluid pressing the piston against hydraulic fluid of the bore side space. The hydraulic system further includes an annular side space accumulator having a fluid compartment, which is in fluid contact with the annular side space, and a gas compartment containing a pressurized gas applying a pressure on the hydraulic fluid in the annular side space.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 23, 2015
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Kristian Burhoff, Patrik Sjoberg, Andreas Wood
  • Patent number: 8967507
    Abstract: A moveable shaft assembly including a frame, a first shaft, and a first drive assembly. The frame includes a first support wall and a second support wall opposite the first support wall. The first shaft includes a drive end and a support end and defining a first axis therebetween. The first shaft extends between the first support wall and the second support wall. The first drive assembly rotates the first shaft about the first axis, and the first drive assembly is coupled to the drive end of the first shaft. The first shaft and first drive assembly are moveable relative to the frame in response to a reaction force acting on the first shaft in a direction oblique or transverse to the first axis.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: March 3, 2015
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Bernard Pusheck, Russell Cascio, Justin Zunker
  • Patent number: 8850910
    Abstract: An apparatus for the shredding or mixing of bulk material, which is mounted on a mobile chassis which may be driven by a power source on the chassis or pulled by a tractor or truck therefor. A power assist transmission is capable of changing a transmission power ratio between the power source and a shredding or mixing member, such as an auger, without any interruption of power to the auger. An oil pump forms part of the transmission for delivery of hydraulic fluid to components in the transmission, and means are provided to reverse the direction of rotation of the oil pump and to also increase the rate of rotation of the oil pump with respect to the rate of rotation of the input shaft, to generate oil pressure required at very low motor rotations per minute to enable the necessary rotation of augers with a full load.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: October 7, 2014
    Inventor: Conrad Ten Have
  • Publication number: 20140166792
    Abstract: The invention refers to a comminution device, such as for example a shredder (II) or the like for in particular large-size materials, with a main drive (I) generating a rotational movement for a shredder shaft (2), wherein the rotational speed of the shredder shaft (2) can be changed continuously by means of a gear interposed between main drive (I) and shredder (II), wherein as gear a planetary gear, in particular a planetary superposition gear (1), preferably a hydrostatic superposition gear is provided. The invention is characterized in that the hydraulic engine (4) as additional drive aggregate can be impinged in two different rotational directions.
    Type: Application
    Filed: July 26, 2012
    Publication date: June 19, 2014
    Applicant: DOPPSTADT FAMILIENHOLDING GmbH
    Inventors: Johann Doppstadt, Horst Berger
  • Patent number: 8727254
    Abstract: A radially projecting member (e.g., a paddle assembly) including a pin having a head; a paddle pivotally engaged to the head; and a shear member engaged to the head and to the paddle, the shear member being constructed and arranged to fracture to permit pivotal rotation of the paddle relative to the head.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 20, 2014
    Assignee: Scott Equipment Company
    Inventors: Richard V. Lucas, Glen A. Jeurissen, Richard R. Lucas
  • Publication number: 20130334348
    Abstract: A crusher adapted to crush feed materials comprising a main frame, a secondary frame disposed adjacent to the main frame, a crushing chamber adapted to receive feed materials, and a tramp iron relief system comprising a cylinder. The tramp iron relief system is adapted to allow a portion of the secondary frame to move away from the main frame. The cylinder is disposed substantially adjacent to the secondary frame. A method for installing a cylinder on a crusher and a method for removing a cylinder from a crusher wherein a lifting device remains attached to the cylinder continuously during each operation.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 19, 2013
    Inventors: Chuck Dricken, Alan Eisner, Dean Wolfe, Albert Van Mullem, Sean Neitzel, Matthew B. Haven
  • Publication number: 20130186989
    Abstract: A radially projecting member (e.g., a paddle assembly) including a pin having a head; a paddle pivotally engaged to the head; and a shear member engaged to the head and to the paddle, the shear member being constructed and arranged to fracture to permit pivotal rotation of the paddle relative to the head.
    Type: Application
    Filed: November 27, 2012
    Publication date: July 25, 2013
    Applicant: SCOTT EQUIPMENT COMPANY
    Inventor: Scott Equipment Company
  • Patent number: 8187064
    Abstract: A chopper for an agricultural combine has blades with an overload release mechanism that permits them to pivot out of the way when the chopper is obstructed and experiences an overload condition.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: May 29, 2012
    Assignee: Deere & Company
    Inventors: Benjamin J. Schlesser, Justin C. Freehill
  • Patent number: 8104701
    Abstract: A grinding machine having a mounting arrangement and an anvil. The grinding machine generally including a feed table and a grinding drum positioned within a mill box. The mounting arrangement being configured to support an end of the feed table and the anvil. The anvil including a wedge-shaped portion and having a length. The length of the anvil being configured to extend beyond sides of the mill box.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: January 31, 2012
    Assignee: Vermeer Manufacturing Company
    Inventors: Brian Smidt, Darin Dux, Scott Eberts, Duane Harthoorn
  • Patent number: 7971818
    Abstract: A grinding machine having an improved anvil mounting arrangement is provided. The mounting arrangement according to the present disclosure is configured to securely support an end of the feed table and an anvil, and also enables easy replacement of the anvil.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 5, 2011
    Assignee: Vermeer Manufacturing Company
    Inventors: Brian Smidt, Darin Dux, Scott Eberts, Duane Harthoorn
  • Patent number: 7900858
    Abstract: A material reducing apparatus comprising a feed conveyor, for conveying material to be reduced, and a feed roller cooperating with the feed conveyor. An upwardly rotatable rotor carrying a plurality of strikers which facilitate reduction of the material to be reduced and an anvil cooperating with the plurality of strikers to facilitate further reduction of the material to be reduced. A grate assembly, located adjacent an arcuate path of the rotor, which permits sufficiently reduced material to pass therethrough. The material reducing apparatus further includes a failsafe system which comprising an accelerometer supported by the rotor and coupled to a control system such that the accelerometer, upon detection of the rotor contacting a hard material, sends a signal to the control system. If the signal indicates a sufficiently large material, the control system reverses a rotational direction of the feed roller so that the feed roll rotates to withdraw the hard material from contact with the rotor.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: March 8, 2011
    Inventor: Anders Ragnarsson
  • Patent number: 7229041
    Abstract: A blockage clearance apparatus for a crusher that has a housing and a lid and at least one anvil mounted to the lid for crushing material. The housing contains a rotatable rotor with radial blow bars against which crushable materials are forced during operation. In operation, the materials are fed into the crusher, impacted by at least two blow bars and thrown against at least one anvil for crushing. The blockage clearance apparatus includes means for moving the lid and the anvil relative to the rotor during operation, means for inhibiting the material in the housing from exiting the housing when the lid is spaced from the housing during operation, and means for stopping movement of the lid relative to the rotor.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: June 12, 2007
    Assignee: Ohio Central Steel Company
    Inventors: Douglas J. Cohen, Eric E. Dombrowski, Stan Wegrecki, Michael E. Winemiller
  • Patent number: 7222805
    Abstract: A materials processing system adapted for the reduction of metallic materials including a material feed portion configured to convey materials to a mill portion comprising a motor driven rotor in close running fit with a cage mounted grate through which reduced material is discharged onto a conveyer. The cage is biased to a closed operating position by one or more hydraulic rams. A control system receives signals from a speed sensor operatively coupled to the rotor, and is configured to regulate the hydraulic rams, thereby controlling the opening and closing of the cage in response to rotation of the rotor. The control system is further configured to regulate the operation of the materials feed portion to suspend material feed during opening of the cage, permitting trapped or jammed material to be expelled from the mill portion.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: May 29, 2007
    Inventor: Robert M. Williams, Jr.
  • Patent number: 7048212
    Abstract: The present invention provides a sound activated detection system disposed within the conveyor and/or hammer roll area of a reduction mill for detecting unshredable materials fed into the machine. More specifically, an embodiment of this invention comprises a unshredable debris detector disposed in operative relationship in the material input path and includes a transducer, preferably a piezoelectric crystal, acoustically coupled to a sensing surface disposed transversely across a portion of the input path. Alternative embodiments may include one or more accelerometers, microphones, or other vibration or acoustic sensors either alone or in conjunction with the transducer for detecting the unshredable material.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: May 23, 2006
    Inventor: Alan Carey
  • Patent number: 6932289
    Abstract: A jaw crusher having a dynamically adjustable tramp iron relief system is disclosed. A moveable jaw and a stationary jaw define a crushing chamber, with a lower portion of the moveable jaw cooperating with a lower portion of the stationary jaw to define a closed side setting gap. A hydraulic tramp iron relief system operatively connects at least one of the jaws to the frame and is arranged to permit uncrushable material to pass through the crushing chamber by permitting the lower portion of the jaw to shift to a shifted position in which the gap is increased. The tramp iron relief system includes an adjustable hydraulic cylinder, the hydraulic cylinder arranged to permit the gap to be adjusted during operation of the crusher.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: August 23, 2005
    Assignee: Cedarapids, Inc.
    Inventor: Joseph E. Musil
  • Patent number: 6910647
    Abstract: The present invention relates to an apparatus and method for removing material sizing and sorting screens from a materials reducing machine. The invention pertains to providing cut outs in the side of the materials reducing machine and positioning the rotor bearing housing to allow access to and the ability to remove screens from the side of the materials reducing machine. Once outside the machine, the screens can be replaced with new screens, rotated, or interchanged with other screens in the materials reducing machine.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: June 28, 2005
    Assignee: Peterson Pacific Corporation
    Inventors: Peter B. Alford, Arnold Neil Peterson
  • Patent number: 6783090
    Abstract: An improved hammermill assembly utilizing shear bolts and shear plates designed to break upon extreme loads exerted upon the hammermill assembly, thereby reducing the occurrence of damage to the hammermill assembly or attached equipment.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: August 31, 2004
    Assignee: Diamond Z Manufacturing
    Inventor: Melvin A. Zehr
  • Patent number: 6766971
    Abstract: A method and an installation for operating a system for comminuting scrap material is provided. The installation includes a supply device (1) for the scrap material to be comminuted, and a comminuting machine (2) with at least one motor-driven (2.3) rotor (2.2) which has comminuting tools (2.2.1) and is horizontally positioned in a housing (2.1) and has an ejection door (2.1.1). The inventive installation also includes drive means for controlling the power and for protecting the installation from scrap material which is difficult to comminute or which cannot be comminuted at all, such as coarse, heavy or hard parts. For optimizing the comminuting process, the values of the motor output, of the rotation speed of the rotor, of the temperature of the motor and the motor bearings and/or of the height of the scrap material flow (3) supplied to the comminuting machine (2), are inputted in a controller (4) and used to control/regulate the scrap material supply. Technical means (4.5, 4.6, 4.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: July 27, 2004
    Assignee: Metso Lindemenn GmbH
    Inventors: August Van Der Beek, Erich Köhl, Rainer Voss, Bernhard Kock
  • Patent number: 6742732
    Abstract: The present invention relates to an adjustable feeding and striking ramp which permits for adjusting an angular disposition of feed material fed to an impacting radial pathway of shearing teeth carried by a rotor. By adjusting the feeding and striking ramp to a predetermined striking position, fragmenting efficacy may be significantly enhanced while also substantially reducing fouling.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: June 1, 2004
    Inventors: Vincent G. Hundt, James O. Brick
  • Patent number: 6726135
    Abstract: A device for comminuting feed material has a rotary blade ring rotating about an axis of rotation. A comminution chamber is enclosed by the rotary blade ring and receives the feed material in an axial direction parallel to the axis of rotation. A counter abutment projects in the axial direction into the comminution chamber. The rotary blade ring is moveable in a radial advancing direction against the counter abutment and applies a pressing force relative to the counter abutment to effect comminution of the feed material in a working position of the counter abutment. The counter abutment has an effective surface facing the feed material and the effective surface is supported so as to be moveable such that, upon surpassing a predetermined value of the pressing force, at least the effective surface performs an escape movement relative to the rotary blade ring in an escape direction.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: April 27, 2004
    Assignee: Pallmann Maschinenfabrik GmbH & Co. KG
    Inventor: Wilhelm Pallmann
  • Publication number: 20020056771
    Abstract: An improved hammermill assembly utilizing shear bolts and shear plates designed to break upon extreme loads exerted upon the hammermill assembly, thereby reducing the occurrence of damage to the hammermill assembly or attached equipment.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 16, 2002
    Applicant: Diamond Z Manufacturing
    Inventor: Melvin A. Zehr
  • Patent number: 6325309
    Abstract: This invention is related to a gear protection device of a paper shredder. The gearbox of the paper shredder is provided with a transmission component having a safety trip and with an adjustable transmission load. The device is provided on an end face of a primary gear driven by an output shaft of a motor, which end face is provided with a radial teethed face that couples to an end face of a secondary gear being provided with another radial teethed face. The primary and second gears are serially connected on a central shaft. Another end of the secondary gear is formed with a male gear engaging and being driven by another gear mechanism.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: December 4, 2001
    Inventor: Frank Chang
  • Patent number: 6047912
    Abstract: A break-away processing tool for a waste processing machine includes a tool holder, at least one fastener for attaching the tool holder to a rotor assembly of the waste processing machine and a structure for allowing breakage of the tool holder in a controlled manner such that broken pieces of the tool holder remains attached to the rotor assembly by the fastener.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: April 11, 2000
    Inventor: Leward N. Smith
  • Patent number: 5975443
    Abstract: The present invention relates to unique waste recycling machines possessing improved efficacy in recycling bulky waste materials to a recycled waste product. The feed for the machine is equipped with a floating stripper plate which scrapes adhering waste materials from a continuous metal apron feed. The device also includes a releasable cradle assembly which supports a striking bar and a screen positioned about a rotating drum equipped with impacting teeth or blades. When a damaging obstacle enters an impacting or fragmenting zone of the machine, a shear pin which maintains the cradle assembly in a fragmenting position will shear causing the cradle assembly to become dislodged to an inoperable or non-damaging position. The machine also includes impacting teeth which are dynamically balanced and positioned upon a rotating impacting drum so as to effectuate especially effective fragmentation of waste materials to a desired particle size.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: November 2, 1999
    Inventors: Vincent G. Hundt, Frederick G. Peltz
  • Patent number: 5947395
    Abstract: A machine for reducing materials such as logs, limbs, stumps and the like into small particles. A hold down and infeed roller in combination with a conveyor feeds the materials into a rotating rotor. The rotor has cutters mounted on its periphery and is rotated in a direction to produce an upward cutting action. The rotor partially reduces the materials into smaller particles. An anvil in combination with the rotor further reduces the particles into the desired size. A grate dictates the size of the materials to be discharged from the machine.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: September 7, 1999
    Assignee: Peterson Pacific Corp.
    Inventors: Arnold N. Peterson, Larry A. Sprague
  • Patent number: 5947396
    Abstract: A material collider system for reducing the size of solid particulate material fed into the system is disclosed. The collider system includes a pair of interconnected cylindrical chambers each having a rotatable rotor assembly which includes a plurality of disc sets and rigidly mounted thrust guides. The rotor assemblies are aligned in parallel relation and operate in a counter rotating manner. The thrust guides are mounted to the disc sets so as to extend radially outwardly of the disc sets and each thrust guide is maintained in a substantially rigid position by a shear pin. In one embodiment, the thrust guides of the two rotors are arranged in an alternating, interdigitating pattern. The disc sets may be offset along the length of the rotor assemblies such that the thrust guides form a 360 degree spiral pattern. The rotor assemblies are operated by motors secured outside of the chambers.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: September 7, 1999
    Inventor: Melvin E. Pierce
  • Patent number: 5937923
    Abstract: A chip slicer has pivotably mounted chip-forming knives located so that the knife edges are in a plane which passes through the axis of rotation of the knives, as well as through the axis of pivoting. Another improvement is to employ a knife which has a blade which is bent at an obtuse angle to form a first and a second leg. The first leg has a cutting edge and an upper surface which defines a chip path. The second leg is bent with respect to the first leg in the direction of rotation of the knife ring. The knives are mounted to the ring by clamping wedges which are bolted to the knife ring so that they overlie the second leg and so clamp the knife blade by the second leg to thereby substantially remove obstructions from the chip path. A further improvement has chip depth gauges which are positioned in front of the knife edges. The depth gauges have trailing edges in the direction of rotation which extend substantially parallel to the upper surface of the blades.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: August 17, 1999
    Assignee: Beloit Technologies, Inc.
    Inventors: Joseph B. Bielagus, James R. Montgomery
  • Patent number: 5911372
    Abstract: Material reduction apparatus for reducing waste material consisting of both metallic and non-metallic waste which is required to be rendered separable so that each type of waste material is rendered useable, and apparatus that embodies cutters on a single rotary shaft and a series of stationary cutting blades located in a position to allow the shaft mounted cutters to carry the waste material from the stationary cutting blade to effect the desired reduction of that waste material is provided with structure permitting removal of jammed material.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: June 15, 1999
    Inventor: Robert M. Williams, Jr.
  • Patent number: 5882246
    Abstract: In a wet agitating ball mill, a shaft 5 rotated and driven by a motor is hollow at its axial center at an upper portion, a discharge route 9 communicating with a slurry discharge port is provided, and a rotor 11 is affixed at the lower portion of the shaft. A separator 4 is composed of a pair of disks 21 and a blade 22 for coupling both disks to form an impeller, and by its rotation, a centrifugal force is applied to the slurry and media getting in the separator 4, and by the difference in specific gravity of the two, accordingly, the media having the heavier specific gravity is expelled and separated in the radial direction, while the slurry of the lighter specific gravity is discharged through the discharge route 9 of the shaft 5 in a state free from kinetic energy.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: March 16, 1999
    Assignee: Kotobuki Eng. & Mfg. Co., Ltd.
    Inventors: Mitsugu Inkyo, Toshiya Kitakaze, Takashi Tahara
  • Patent number: 5743472
    Abstract: Material shredding apparatus having a motor driven shaft carrying a material shredding rotor operatively mounted in a housing assembly adjacent a pivotally yieldable material shredding cutter and a shredded material sizing screen pivotally movable between a position in abutment with the pivotally yieldable shredding cutter and a shredder material receiving position adjacent the shredding rotor. The assembly being provided with electrical safety cutoff circuit means operative upon loss of shear pin support means for the material sizing screen and shredding cutter for stopping current supply to the motor driven shaft to avoid damage to the housing assembly by encountering tramp material to hard to shred by the shredding cutter.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: April 28, 1998
    Assignee: Williams Patent Crusher & Pulverizer Company
    Inventors: Robert M. Williams, Jr., Paul H. Becherer
  • Patent number: 5722605
    Abstract: A roll crusher includes a crusher roll; a support for rotatably and radially shiftably supporting the crusher roll; a stationarily supported countermember cooperating with the crusher roll to define a crushing gap therewith; and a hydraulic setting system for radially displacing the crusher roll for varying the crushing gap. The hydraulic setting system includes a pressure source and a piston rod executing strokes and having an end coupled to the roll support for transmitting to the crusher roll setting forces derived from the pressure source. Further, an abutment device is provided for limiting the strokes of the piston rod to set a minimum magnitude of the crushing gap. The abutment device includes an actuating mechanism for placing the abutment device into a stroke-limiting state and into a piston rod-releasing state.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: March 3, 1998
    Assignee: Krupp Fordertechnik GmbH
    Inventor: Wolfgang Finken
  • Patent number: 5713525
    Abstract: A horizontal comminuting machine for reducing recyclable waste wood and other comminutable material which may have non-reducible foreign objects incorporated with it has a generally horizontal rotary drum mounting a plurality of peripherally spaced communinuting tools traveling in a continuous work contacting path. A feed works delivers material forwardly to the rotating drum in a longitudinal feed stream and to a lead anvil which, under undue operating pressure, withdraws from an operative position adjacent the path of the tools to a removed position. An anvil confining assembly on the machine frame controls the travel of the anvil. Rearwardly of the lead anvil, individual anvils are mounted to cooperate with the tools to further reduce the material.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: February 3, 1998
    Assignee: Wood Technology, Inc.
    Inventor: Norval K. Morey
  • Patent number: 5685499
    Abstract: A material comminution device has a housing. Cutters extend within the housing and move toward each other in a scissor-like manner. The cutters extend parallel to each other along a bottom portion and diverge along a top portion, and consist of comb-like rows of spaced blades that mesh with each other. The blades carry out at the same time a shearing movement and a swivelling movement around an axis by means of a crank mechanism.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: November 11, 1997
    Assignee: K. R. Pfiffner AG
    Inventor: Manfred Gimmy
  • Patent number: 5529249
    Abstract: A rotary impact breaker has a housing and a rotor rotatable in the housing about an axis in a predetermined direction and formed with a radially outwardly open pocket having a generally radially extending front and back faces. An impact element has a foot part seated in the pocket and having a front face bearing against the front pocket face and a back face confronting and diverging from the back pocket face and a head part projecting radially from the pocket. A retaining wedge in the pocket has a front face bearing forwardly against the back element face and a back face backwardly against the back pocket face. A bolt engages radially from the wedge into the rotor and presses the wedge radially inwardly and thereby tightly lodges the wedge between the back element face and back pocket face.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: June 25, 1996
    Assignee: Westfalia & Braun Zerkleinerungstechnik GmbH & Co.
    Inventors: Gert Braun, Ernst Braun
  • Patent number: 5518190
    Abstract: The grinding unit comprises a grinding rotor unit, incorporating a inlet screw member, a conical grinding tool member, a delivery dish member and a gear unit. A dog clutch is operationally inserted between the delivery dish member and the gear unit. A safety clutch is operationally inserted between delivery dish member and grinding tool which limits the torque to be transmitted. The safety clutch is provided with ball members located in axially running bores of the delivery dish member and being axially displaceable in these bores. The ball members are forced against the front face of the grinding tool and partially engage apertures provided therein under the influence of spring members assigned to each ball member. The delivery dish member is provided at its surface which faces the grinding tool member with a metallic disc member in which are located the mouths of axial bores containing the spring pressure loaded ball members.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: May 21, 1996
    Assignee: Samaro Engineering and Handels AG
    Inventors: Thomas Aebi, Andre Ochsenbein
  • Patent number: 5383610
    Abstract: The invention relates to the comminution of brittle material for grinding in a material bed roll mill with two grinding rolls, in which the material for grinding is comminuted between the cylindrical surfaces of the grinding rolls by the application of a grinding force. In order to prevent damage to the roll surfaces due to excessively high surface pressures but to utilise the maximum capacity without exceeding it, the roll surface pressure is continuously monitored and when an upper limit is exceeded the pressure is reduced to a permissible value by reducing the grinding force.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: January 24, 1995
    Assignee: Krupp Polysius AG
    Inventor: Don Longhurst
  • Patent number: 5273218
    Abstract: An apparatus for reducing various material to smaller sizes emphasizing large volume with long pieces. The apparatus has a frame case, with an infeed and outfeed, within which at least one rotor with at least one radially tilted forward cutter bar cuts the material against one anvil. A grate is used to size the material to final product dimensions. The frame case is angularly split. Where more than one rotor is used, they are radially offset.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: December 28, 1993
    Inventor: Leslie L. Burns
  • Patent number: 5232168
    Abstract: A method and apparatus for separating recyclable material from waste material in a material handling system. The material separator comprises a screw conveyor that separates waste material from recyclable material. The screw feeder also feeds the recyclable material into a crusher for pulverization. The waste material bypasses the crusher and is deposited onto a screen for removal into a waste bin. The crusher generally pulverizes the material received by the screw conveyor. However, if uncrushable material is dropped into the crusher assembly, a ballistic part ejector is provided for use with the crusher. The crusher apparatus has a housing and a rotary crusher member. The housing of the crusher apparatus includes convergent walls along one portion to direct ballistic or thrown uncrushable debris in a predetermined direction toward an ejector aperture formed in the housing. A closure member operably obstructs the ejector aperture in the housing.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: August 3, 1993
    Assignee: Engineered Systems, Inc.
    Inventors: G. Wayne Lybecker, Timothy P. Sherrow
  • Patent number: 5115991
    Abstract: The present invention relates to a gyratory cone crusher having an eccentric member mounted within a lower main frame for rotational motion relative thereto. Disposed within the eccentric member is a crusher head assembly defining a first crushing surface which is adapted to gyrate relative a second crushing surface included within an upper bowl assembly attached to the main frame. Rotation of the eccentric member is facilitated by a plurality of V-belts extending between the eccentric member and a drive motor. Disposed between head assembly and the eccentric member and the eccentric member and the main frame are first and second bronze bearings which are interfaced to a lubrication system.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: May 26, 1992
    Inventor: Robert S. Saari
  • Patent number: 5088370
    Abstract: A sheet material cutting apparatus in which a pair of blades comprising a movable blade and a fixed blade are arranged, and the movable blade reciprocates to cut sheets. A drive device is mounted on the cutting apparatus, which drive device includes a drive arm to actuate the movable blade and a connecting lever having a split groove for connecting the lever to the drive arm. The movable blade is driven with the aid of the connecting lever and the drive arm of the drive device. The drive of the movable blade is controlled by elasticity of the split groove in the connecting lever. When load exceeding a predetermined amount occurs at the movable blade, the split groove in the connecting lever permits the drive arm to come off.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: February 18, 1992
    Assignees: Hitachi Metals Ltd., Yasugi Seimitsu, Ltd.
    Inventor: Takajiro Kondo
  • Patent number: 5029626
    Abstract: The anvil rotor on a wood chip slicing machine is connected to its drive shaft via shear pins which extend into the hub of the rotor from a coupling which is mounted on the shaft. The coupling provides bearings for rotation of the rotor hub thereon when the shear pins are sheared as a consequence of an overload or load shock condition. The overload protection mechanism is applicable to other machines.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: July 9, 1991
    Assignee: Acrowood Corporation
    Inventors: Donald A. Dean, Adrian Artiano, Gabriel M. Terrenzio
  • Patent number: 5004028
    Abstract: A chip slicer for slicing wood chips such as for use in a pulp preparation procedure with an annular housing having knives therein and a rotor therein with anvil means for carrying wood chips against the knives with a shaft extending coaxially for diving the rotor, a driving hub mounted on the shaft and connected to it, a driven hub rotatably mounted by bearings on the driving hub with each of the hubs having annular plates and shear pins extending axially between the plates of a strength to transmit normal rotational power and to shear upon forced stalling of the rotor with the driven hub permitting continued rotation of the driving hub within the driven hub and continued rotation of the shaft with forced stalling of the rotor.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: April 2, 1991
    Assignee: Beloit Corporation
    Inventors: James Adams, Richard Gobel, Bryan Lanham
  • Patent number: 4919344
    Abstract: Grinding mill apparatus for grinding biomass, said apparatus including a substantially box-like steel housing having a top inlet and a bottom outlet; a plurality of anvils pivotally engaging the housing and held in a fixed position by shear pins; a rotor mounted for rotation about a horizontal axis within the housing, the rotor provided with cutting bars orbiting in close proximity to the anvils for fragmenting the biomass; and a grate system for discharging material of a desired size through the outlet of the housing. The housing includes a back wall which is integral with the side walls for reducing metal fatigue and also includes a side wall access opening with access cover for insertion and removal of the cutter bars of the rotor and insertion and removal of grate member sections. The rotor includes two or more sections, each section defining a portion of a cylinder axially offset from adjacent sections for aerodynamic reaons and for reasons of strength.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: April 24, 1990
    Inventor: Robert T. McKie
  • Patent number: 4917310
    Abstract: A processing apparatus for solid waste including a rotor with a plurality of blades mounted thereon for shredding solid waste in corporation with a number of counterblades. A prescreening system is provided adjacent the inlet to the shredding elements so as to allow small abrasive items to be removed from the waste prior to shredding. A flexible cleaning system is provided for cleaning waste wrapped about the rotor between the blades. Further, a system is provided for preventing nonshreddable materials from jamming the rotor blade/counterblade system and for diverting such nonshreddable materials to a designated hopper.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: April 17, 1990
    Assignee: Sorain Cecchini Recovery, Incorporated
    Inventor: Pietro Carrera
  • Patent number: 4913358
    Abstract: A high-output mixer, for the refining of intitially comminuted material and mixing with bleaching chemicals before introducing these in a bleaching tower, includes a horizonatal, ring-shaped mixing/refining zone betwwen a rotor disk as a lower part and a removable stator unit as an upper part.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: April 3, 1990
    Assignee: Maschinenfabrik Andritz Actiegesellshaft
    Inventors: Johann Sbaschnigg, Richard Baumgarter, Wilhelm Mausser
  • Patent number: 4892257
    Abstract: An improved cone crusher with an eccentrically driven crushing cone, crushing jacket outside of the cone defining a crushing nip therebetween, the cone is driven in an oscillating manner tilting about its vertical axis and is connected to a driven through a universal joint having a one way clutch connected between the joint and a drive shaft with a support for the cone and a cap having a reduced portion which can shear in torsion, and means for holding the cone on a support with controllable force.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: January 9, 1990
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Helmut Stoeckmann, Klaus Schuette, Franz-Rudolf Schmitz
  • Patent number: 4732332
    Abstract: A cross-beam at the front end of a vehicle body carries knives which are rotatable between a position in which they extend into a conveyor duct and an upper position for inspection and/or sharpening. A pronged pusher moves fodder material gathered by a pick-up from the knives to the duct, when the material passes to a cross-conveyor for deposition of the fodder material. The vehicle advantageously has a short wheelbase.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: March 22, 1988
    Assignee: Schuitemaker Machines, B.V.
    Inventor: Johannes Schitemaker
  • Patent number: 4604035
    Abstract: A submersible motor pump assembly having an improved driving connection between the motor and pump. The motor shaft and pump shaft are disposed in end-to-end relation and a bolt extends through an axial passage in the pump shaft and the projecting end of the bolt is threaded in an axial opening in the end of the motor shaft. The outer or opposite end of the pump shaft is formed with a recess that communicates with the passage and the head of the bolt is fixed against rotation with respect to the pump shaft by a bolt retainer which is disposed with the recess. A shear pin interconnects the mating ends of the two shafts to provide a driving connection. The hand of the thread on the bolt is such that rotation of the motor shaft, after shearing of the shear pin, will cause the bolt to be unthreaded from the motor shaft to prevent locking up of the shafts.
    Type: Grant
    Filed: January 2, 1985
    Date of Patent: August 5, 1986
    Assignee: A. O. Smith Harvestore Products, Inc.
    Inventor: James R. Roberts
  • Patent number: 4560110
    Abstract: A hydraulic drive arrangement for a shear-type shredder includes an electrically operable control circuit, including a jam sensor external to the hydraulic fluid circuit, for sensing jamming conditions in the shredder and reversing the flow in the fluid circuit only when a true jamming condition is sensed. The jam sensor is located in the electrical power circuit to the electric motor driving the hydraulic fluid pump for sensing the load on the motor. An electric discriminator circuit responds to the sensor to distinguish between load changes due to true and momentary jamming conditions in the shredder. An actuator responsive to the discriminator actuates a flow-reversing valve in the hydraulic circuit to reverse fluid flow therein to reverse the shredder and thereby clear the jamming condition.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: December 24, 1985
    Assignee: MAC Corporation of America
    Inventor: Dan S. Burda