Scoop Or Bucket Patents (Class 37/398)
  • Patent number: 10161103
    Abstract: A dragline bucket assembly including: a cutting edge including a lip and a plurality of teeth or tooth assemblies attachable to the lip and a floor extending rearward from the cutting edge and having side walls extending upward from the periphery of the floor to extend about the floor from one end of the cutting edge to the other, the lip being attachable to the side walls by bolting or by bolting and welding.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 25, 2018
    Assignee: THE TRACK SHOP PTY LTD.
    Inventor: Timothy Stuart Falkenhagen
  • Patent number: 10094090
    Abstract: A mining shovel including a base, a boom, a first member moveably coupled to the boom, a bucket, and a pivot actuator. The base includes a hoist drum for paying out and reeling in a hoist rope. The boom includes a first end coupled to the base and a second end opposite the first end. The hoist rope extends over the second end of the boom. The first member includes a first end and a second end. The bucket is pivotably coupled to the second end of the first member. The pivot actuator moves the bucket relative to the second end of the first member, and the pivot actuator includes a first end coupled to the first member.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: October 9, 2018
    Assignee: Joy Global Surface Mining Inc
    Inventor: Jason Knuth
  • Patent number: 9574319
    Abstract: A retaining mechanism having a retainer member, plunger member, and an engagement indication assembly. The retainer member has a body that defines a void having a first end and a second end and extending along a length of the body. The plunger member is located at least partially in the void and has a length greater than the length of the void. The plunger member is movable a first position in which a portion of the plunger member extends beyond an end of the void, and a second position in which another portion of the plunger member extends beyond another end of the void. The engagement indication assembly includes a retainer member linkage coupled to the retainer member, a plunger member linkage coupled to the plunger member, and a flag member coupled to the plunger member linkage and the retainer member linkage.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 21, 2017
    Assignee: Caterpillar Inc.
    Inventor: Greg Seljestad
  • Patent number: 9009994
    Abstract: A mining shovel includes a digging assembly having a generally V-shaped boom including a lower connection point for attachment to the mining shovel. A first portion of the boom extends generally upwardly from the lower connection point, and a second portion of the boom is angled with respect to and extends upwardly and forwardly from the first portion. The second portion includes a distal end defining a sheave support, and a pivot element is positioned generally at a connection area between the first portion and the second portion. The digging assembly also includes a boom attachment having a first end that is pivotally supported by the pivot element and a second end that is supported by the sheave support.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: April 21, 2015
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: William J. Hren, Rainer Poetter
  • Patent number: 8972120
    Abstract: An industrial machine and a method of controlling an industrial machine, the industrial machine including a dipper supported by a dipper handle. The method may include determining an operating phase of the industrial machine, in a first operating phase of the industrial machine, limiting, with at least one controller, a reach of the dipper handle, and in a second operating phase of the industrial machine, enabling, with the at least one controller, an extended reach of the dipper handle greater than the reach in the first operating phase. The industrial machine may include at least one controller configured to determine an operating phase of the industrial machine, in a first operating phase of the industrial machine, limit a reach of the dipper handle, and, in a second operating phase of the industrial machine, enable an extended reach of the dipper handle greater than the reach in the first operating phase.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 3, 2015
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Michael Linstroth, Joseph J. Colwell, Mooyoung Lee, Matthew I. Loew, Jason Knuth, Peter Gizewski, Jr., Justin Zunker
  • Patent number: 8950091
    Abstract: A dragline bucket includes a main body moveable between a digging orientation and a dumping orientation and a pivotable spreader beam coupled to the main body at a pivot point. The dragline bucket further includes an energy capture mechanism including an actuator coupled to the main body and the pivotable spreader beam and an energy storage mechanism coupled to the actuator.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 10, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventor: Stuart Cover
  • Patent number: 8943714
    Abstract: A rope shovel includes a wristing dipper arrangement. The shovel comprises a base, a boom extending from the base, the boom having a first end attached to the base and a second end remote from the base. The shovel further comprises a pulling mechanism mounted on the second end of the boom and a boom attachment pivotally mounted on the boom and attached to a dipper, the boom attachment including an actuator coupled to the dipper.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: February 3, 2015
    Assignee: Harnischfeger Technologies, Inc.
    Inventor: William J. Hren
  • Publication number: 20140305011
    Abstract: A heavy duty excavator bucket is constructed with an exoskeletal structure comprising coupled cast components including a lip member, opposed wing members, junction members locatable between floor and side walls and side and rear walls and a cap rail structure extending between opposed wing members about the upper periphery of the bucket to form an integral structure. Steel plate floor, side wall and rear wall members extend between adjacent exoskeletal regions. The bucket may include a cast arch member extending between opposed wing members and a cast reinforcing member extending between opposed junction members adjacent said rear wall.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
    Applicant: CQMS PTY LTD
    Inventors: Bruce Alexander Leslie, Bevan Hall, Simon Peter Orton, Derek Mulder, David Andrews
  • Patent number: 8756839
    Abstract: A mining shovel includes a digging assembly having a generally V-shaped boom including a lower connection point for attachment to the mining shovel. A first portion of the boom extends generally upwardly from the lower connection point, and a second portion of the boom is angled with respect to and extends upwardly and forwardly from the first portion. The second portion includes a distal end defining a sheave support, and a pivot element is positioned generally at a connection area between the first portion and the second portion. The digging assembly also includes a boom attachment having a first end that is pivotally supported by the pivot element and a second end that is supported by the sheave support.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: June 24, 2014
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: William J. Hren, Rainer Poetter
  • Publication number: 20130247426
    Abstract: A dragline bucket includes a main body moveable between a digging orientation and a dumping orientation and a pivotable spreader beam coupled to the main body at a pivot point. The dragline bucket further includes an energy capture mechanism including an actuator coupled to the main body and the pivotable spreader beam and an energy storage mechanism coupled to the actuator.
    Type: Application
    Filed: March 26, 2012
    Publication date: September 26, 2013
    Inventor: Stuart Cover
  • Publication number: 20120317847
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
  • Patent number: 8250785
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: August 28, 2012
    Assignee: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D Hyde, Aaron B Lian
  • Patent number: 8112912
    Abstract: A dump block with a self-adjusting bearing includes two side sections, a sheave with a peripheral groove and a central bore, a bearing assembly, and a sheave pin. The sheave pin has a first end with a shoulder, a second end with a threaded portion, and a bearing support section of a predetermined length extending between the first and second ends. The sheave pin is positioned within the bearing assembly and adjusted by urging the sheave pin to translate in the direction of the second end. A fastener is secured to the threaded section at a location between the two side sections.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: February 14, 2012
    Assignee: Columbia Steel Casting Co., Inc.
    Inventor: Stephen P. Doan
  • Publication number: 20110167682
    Abstract: A heavy duty excavator bucket is constructed with an exoskeletal structure comprising coupled cast components including a lip member, opposed wing members, junction members locatable between floor and side walls and side and rear walls and a cap rail structure extending between opposed wing members about the upper periphery of the bucket to form an integral structure. Steel plate floor, side wall and rear wall members extend between adjacent exoskeletal regions. The bucket may include a cast arch member extending between opposed wing members and a cast reinforcing member extending between opposed junction members adjacent said rear wall.
    Type: Application
    Filed: March 3, 2011
    Publication date: July 14, 2011
    Applicant: CQMS PTY LTD
    Inventors: Bruce Alexander Leslie, Bevan Hall, Simon Peter Orton, Derek Mulder, David Andrews
  • Publication number: 20100269378
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Application
    Filed: July 8, 2010
    Publication date: October 28, 2010
    Applicant: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
  • Patent number: 7774959
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 17, 2010
    Assignee: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D Hyde, Aaron B Lian
  • Patent number: 7721473
    Abstract: A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the bucket whereby pivotal connections at the upper end of each pivot arm may be disposed over the rim and within the bucket zone. Thus the pivot arms may be moved in use through greater than 90° from a position in which the bucket is vertically suspended. The pivot arms act to spread splayed hoist chains without a spreader bar.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: May 25, 2010
    Assignee: Bradken Resources Pty Limited
    Inventor: Jason Ian Lunn
  • Patent number: 7685749
    Abstract: The invention relates to a soil stripping device, in particular a trench wall grab, comprising a base body, which can be connected to a carrier implement, a work unit, on which soil working tools are arranged and which is supported on the base body in a rotatable manner by means of a bearing device, and a rotary device for rotating the work unit with respect to the base body. The rotary device has at least one linear drive and a rope or chain transmission, through which a linear movement generated by the linear drive can be translated into a rotating movement.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: March 30, 2010
    Assignee: Bauer Maschinen GmbH
    Inventors: Stefan Franz Loeffelholz, Josef Maierhofer
  • Patent number: 7658023
    Abstract: This invention relates to a bucket (12) for a mechanical shovel (10). The bucket has a hollow body (16) provided with an inlet (14) for receiving material into its interior and an outlet (15) for discharging material therefrom. A door (18) is secured to the body and is movable between a closed condition in which it closes the outlet, and an open condition in which it permits discharge under gravity of material from the bucket. A buffering device in the form of a working fluid containing telescopically extensible and retractable piston-and-cylinder assembly (22) is operatively connected between the body and the door of the bucket for buffering movement of the door relative to the body.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: February 9, 2010
    Inventor: Grant Alan David Wallett
  • Publication number: 20090235560
    Abstract: A dragline bucket comprising: a floor having a ground engaging leading edge, a rear wall extending upward from said floor and spaced rearward from said leading edge, and two spaced apart side walls extending upward from said floor and forward from said rear wall, the upper edges of said rear wall and said side walls defining an open top and the height from said floor of at least a portion of said side walls forward of said rear wall being substantially less than the height of said side walls adjacent said rear wall.
    Type: Application
    Filed: September 12, 2007
    Publication date: September 24, 2009
    Inventor: Graham Lumley
  • Publication number: 20090183397
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Applicant: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
  • Publication number: 20090139118
    Abstract: A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the bucket whereby pivotal connections at the upper end of each pivot arm may be disposed over the rim and within the bucket zone. Thus the pivot arms may be moved in use through greater than 90° from a position in which the bucket is vertically suspended. The pivot arms act to spread splayed hoist chains without a spreader bar.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Applicant: BRADKEN RESOURCES PTY LIMITED
    Inventor: Jason Ian LUNN
  • Publication number: 20070240340
    Abstract: A UDD bucket for a UDD mining operation provided with multiple hoist connection points that alternative couple to the front and/or rear hoist lines. The UDD mining machine includes a control system that directs the movement of the bucket within a prescribed carry envelope to limit unequal wearing of the hoist lines or minimize the magnitude of rope loads. In one construction, the control system directs the movement of the bucket with a range of motion where the loads on the hoist lines are kept within a prescribed variance of each other during the carry phase or most of the carry phase of a digging cycle. The bucket will be moved by the mining machine with the inventive control system so that, in the carry phase, the loads applied to the front hoist line are within, for example, 5%, 10% or 15% of the loads applied to the rear hoist lines.
    Type: Application
    Filed: October 23, 2006
    Publication date: October 18, 2007
    Applicant: ESCO Corporation
    Inventors: Steven D. Hyde, Aaron B. Lian, Allison M. Daus
  • Publication number: 20070240341
    Abstract: A UDD mining machine provided with a control system directs the movement of the bucket within a prescribed carry envelope to limit unequal wearing of the hoist lines. In one construction, the control system directs the bucket within a range of motion where the loads on the hoist lines are kept within a prescribed variance of each other during the carry phase or most of the carry phase of a digging cycle. Movement of the bucket will be controlled by the mining machine with the inventive control system so that, in the carry phase, the loads applied to the front hoist line are within, for example, 5%, 10% or 15% of the loads applied to the rear hoist lines. This general equaling of the loads in the hoist lines results in longer wear life for the front hoist lines, and generally equal wearing of the front and rear hoist lines to enable simultaneous replacement.
    Type: Application
    Filed: October 23, 2006
    Publication date: October 18, 2007
    Applicant: ESCO Corporation
    Inventor: Steven D. Hyde
  • Patent number: 6834449
    Abstract: A dragline bucket comprises a floor, opposed side walls and a rear wall; a front lip on the floor having adaptors to releasably secure cutting teeth thereto; opposed cheek plates adjacent respective front portions of the side walls; and, hoist rope attachment members located intermediate front and rear portions of the bucket. The bucket has a wide, relatively shallow configuration wherein the rear wall has a height greater than the adjacent side wall portions and respective junctions between the floor and side walls are formed with an arcuate inner surface and there is an arcuate taper between the floor and the top of the rear wall.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: December 28, 2004
    Inventors: Bruce Alexander Leslie, Graham Ian Lumley, Thomas Anthony Meyers
  • Patent number: 6705031
    Abstract: A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: March 16, 2004
    Assignee: Esco Corporation
    Inventors: Terry Lee Briscoe, Charles George Ollinger, Ermanno Simonutti
  • Publication number: 20030126771
    Abstract: A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.
    Type: Application
    Filed: February 26, 2003
    Publication date: July 10, 2003
    Inventors: Terry Lee Briscoe, Charles George Ollinger, Ermanno Simonutti
  • Patent number: 6550163
    Abstract: A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: April 22, 2003
    Assignee: Esco Corporation
    Inventors: Terry Lee Briscoe, Charles George Ollinger, IV, Ermanno Simonutti
  • Publication number: 20030066212
    Abstract: A dragline bucket comprises a floor, opposed side walls and a rear wall; a front lip on the floor having adaptors to releasably secure cutting teeth thereto; opposed cheek plates adjacent respective front portions of said side walls; and, hoist rope attachment members located intermediate front and rear portions of the bucket. The bucket has a wide, relatively shallow configuration wherein the rear wall has a height greater than the adjacent side wall portions and respective junctions between said floor and side walls are formed with an arcuate inner surface and there is an arcuate taper between the floor and the top of the rear wall.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 10, 2003
    Applicant: Thomas Anthony Meyers
    Inventors: Bruce Alexander Leslie, Graham Ian Lumley, Thomas Anthony Meyers
  • Patent number: 6540925
    Abstract: An apparatus for recovering oil has a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a preselected diameter and length to allow separation of the oil and water utilizing differences in specific gravities and viscosities of the oil and water so that the oil can be discharged from the bucket into an oil recovery tank after the water drains out of the bucket through the apertures but before the oil begins to drain out of the apertures.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: April 1, 2003
    Assignee: Nishimuragumi Co., Ltd.
    Inventors: Shinjiro Takahashi, Katsuyuki Maida, Hiroshi Saeki
  • Publication number: 20030024137
    Abstract: A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.
    Type: Application
    Filed: September 5, 2002
    Publication date: February 6, 2003
    Inventors: Terry Lee Briscoe, Charles George Ollinger, Ermanno Simonutti
  • Patent number: 6467202
    Abstract: A dipper door pivotally mounted to a dipper is controlled as it pivots between open and closed positions. In one embodiment, the door is controlled by a brake pivotally linking the door to the dipper. In another embodiment, the door is pivotally mounted to the dipper by a pin, and the door is controlled by a linkage actuated by a linear actuator. The pivot point of the door is positioned above the dipper bottom to decrease the dump height of the dipper.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: October 22, 2002
    Assignee: Bucyrus International, Inc.
    Inventor: Robert F. Brown, Jr.
  • Patent number: 6446366
    Abstract: A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: September 10, 2002
    Assignee: Esco Corporation
    Inventors: Terry Lee Briscoe, Charles George Ollinger, IV, Ermanno Simonutti
  • Patent number: 6434862
    Abstract: A power shovel including a frame, a boom mounted on the frame, a crowd drive mechanism mounted on the boom, and a dipper handle supported by the crowd mechanism. A dipper is connected to the handle for movement therewith, the dipper defining material receiving and material discharging openings with substantially identical areas. The dipper includes a generally planar back wall, a generally planar front wall, the front wall being opposite and substantially parallel to the back wall, generally trapezoidal and substantially parallel side walls connecting the back wall and the front wall, and a lip arranged along an upper edge of the front wall. A lip angle of the dipper is between three and five degrees, and a tooth angle is between 46 and 50 degrees.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: August 20, 2002
    Inventor: William J. Hren
  • Publication number: 20020040540
    Abstract: A dipper assembly includes a dipper having an open bottom and forward end, and a door pivotally linked to the dipper. The dipper bottom is defined by dipper wall bottom edges. The door has a bottom wall and side walls which extend above the bottom wall to define a volume between the side walls, wherein top edges of the side walls abut bottom edges of the dipper wall bottom edges to close the dipper bottom.
    Type: Application
    Filed: September 26, 2001
    Publication date: April 11, 2002
    Inventor: Robert F. Brown
  • Patent number: 6237260
    Abstract: A dragline bucket includes a forward ring that is releasably connected to a basket. The forward ring includes an arch, a first cheek plate, a second cheek plate, and a bottom wall carrying excavation teeth. The basket includes first and second sidewalls and a lower wall. The walls cooperate to receive and hold the material won during the mining or excavation operation. Releasable fasteners secure portions of the basket in receiving means formed in the forward ring, thereby permitting relatively quick and easy separation of the components for repair or replacement.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: May 29, 2001
    Assignee: West Kentucky Steel Construction Company, Inc.
    Inventor: James E. Gooch
  • Patent number: 6209234
    Abstract: A rigging system for dragline buckets includes a unitary adaptor having a hoist equalizer aperture at an upper end thereof and bucket hoist chain connectors extending from opposite sides adjacent a lower end of the adaptor. A connector for a dump block extends forwardly of the adaptor. The hoist equalizer aperture is circular and has transversely rounded bearing surfaces which engage with a cross sectionally rounded support surface of a hoist equalizer to permit relative angular movement between the adaptor and the equalizer. The contact surfaces of the adpator and equalizer are hard faced to reduce wear.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: April 3, 2001
    Inventor: Thomas Anthony Meyers
  • Patent number: 6186735
    Abstract: A bucket for a front end loader is formed with a minimum number of parts so that it can easily be assembled held in fixtures and welded with robot welders. The bucket includes a unitary panel that forms a bottom wall and a rear wall, with a curved junction wall between the bottom and rear walls. An integral top rail is formed at the upper edge of the rear wall for structural integrity. The formed top rail is made with a sloped top rail wall to increase the visibility of a load in the bucket to an operator in a cab of a skid steer loader. The bucket walls and parts which weld thereon have locating tabs and mating edges for locating the parts automatically, so that they can be welded into position. The bucket is made with brackets for mounting it onto a quick attachment plate of a skid steer loader.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: February 13, 2001
    Assignee: Clark Equipment Company
    Inventors: Charles E. Deyo, Daniel T. Antrim, Jonathan C. Hollingsworth, Patrick K. Kuhn, Deborah N. Walock, Kenneth R. Weber, James W. Wolsky
  • Patent number: 6139212
    Abstract: A coupler for coupling an implement having a pair of spaced connecting pins to a handle and a pivot link of a groundworking machine.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: October 31, 2000
    Assignee: Rockland Manufacturing Co.
    Inventor: Ashley Heiple
  • Patent number: 6076290
    Abstract: On a slurry wall device having a cable mounting, on which is attached a supporting cable for guiding the slurry wall device, is provided an adjusting device, with which a supporting cable contact point can be laterally displaced, so that the slurry wall device can be controlled with respect to its deflection in the trench. This permits the orientation of the slurry wall device and consequently its contact angle ofthe bore hole bottom to be controlled by a particularly simple device. It is also easily possible to retrofit a slurry wall device with such an adjusting device.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: June 20, 2000
    Assignee: Bauer Spezialtiefbau GmbH
    Inventors: Ignaz Seitle, Maximilian Arzberger
  • Patent number: 5970636
    Abstract: An integral dump block for use in a dragline bucket that comprises a sheave to movably support a dump line, a central pin rotatably supporting the sheave, and a housing to couple the pin to lift lines. Bearings are disposed within the sheave and each side of the housing for receiving the pin for free rotation. Hoist lines for supporting a dragline bucket are connected to each end of the pin. In this way, moment forces in the hoisting assembly can be substantially eliminated. Further, a number of parts can be eliminated to provide a reduction in weight and height of the hoisting linkage assembly.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: October 26, 1999
    Assignee: Esco Corporation
    Inventors: Terry L. Briscoe, John S. Kreitzberg
  • Patent number: 5839213
    Abstract: A mining shovel (10) is provided with an automatic lubricant system controlled by movement of a portion for the mining shovel (10). The automatic lubrication system includes an actuator (51, 151, 251, 351) and a lubrication supply subsystem (53, 153, 253, 353). The lubrication supply subsystem (53, 153, 253, 353) delivers lubricant to a selected site in response to movement of the actuator (51, 151, 251, 351).
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: November 24, 1998
    Assignee: GPX Corp.
    Inventors: Ronald E. Abbott, Theodore M. Willgrubs
  • Patent number: 5575092
    Abstract: The dragline bucket has a basket (12) with an open from end and an open top defined by bottom, side and rear walls (14, 16, 18). Cheek plate structures (44) of fabricated steel plate construction are carried by the side walls at the front end of the basket and themselves carry drag attachment points (46). There is a lip plate assembly (52) of fabricated steel plate construction at the front of the bottom wall (14) and carrying attachment points for excavating teeth. An arch (38) of hollow, fabricated steel plate construction which spans over the front end of the basket and carries dump rope attachment points. The cheek plate structures, the lip plate assembly and the arch are connected to one another to form a ring of continuous, fabricated steel plate construction at the front end of the basket.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: November 19, 1996
    Assignee: Van Reenen Steel (Proprietary) Limited
    Inventor: Andries J. Smit
  • Patent number: 5499463
    Abstract: A power shovel comprising a frame, a dipper handle mounted on the frame for pivotal movement relative thereto about a generally horizontal dipper handle axis such that the dipper handle has a variable pivotal position relative to the frame, a dipper connected to the handle for pivotal movement relative thereto about a generally horizontal dipper axis such that the dipper has a variable pivotal position relative to the handle, and a variable pitch brace connected between the handle and the dipper at a point spaced from the dipper axis, the variable pitch brace including a spring biasing the dipper in one rotational direction relative to the handle and about the dipper axis, such that the pivotal position of the dipper automatically varies depending on the pivotal position of the handle and on external forces on the dipper.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: March 19, 1996
    Assignee: Harnischfeger Corporation
    Inventors: Richard L. Profio, Frederick W. Loeber
  • Patent number: 5469647
    Abstract: A power shovel comprising a frame, a winch mounted on the frame, a boom having a lower end mounted on the frame and having an upper end, a sheave pivotally mounted on the boom adjacent the upper end of the boom, a dipper handle mounted on the boom for pivotal movement relative thereto and relative to a dumping position, a dipper mounted on the forward end of the dipper handle and having closed and open conditions for respectively containing and dumping a load and further including a latch mechanism for releasably securing the dipper in the closed condition, and a hoist rope extending over the sheave and having one end connected to the winch and an opposite end connected to the dipper such that when the dipper handle is in the dumping position the hoist rope exerts on the dipper a force biasing the dipper to the open condition when the latch mechanism is released.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: November 28, 1995
    Assignee: Harnischfeger Corporation
    Inventor: Richard L. Profio
  • Patent number: 5435084
    Abstract: A digging tooth assembly has a base nose, a replaceable tooth tip mounted on the base nose and a pin securing the tip to the nose. The pin includes a locking head eccentric to the pin and a pad-like resilient member is placed between the head and the tooth tip. The locking head is rotated so that the resilient member is compressed to urge the tooth tip in a direction such that the tip is maintained in a nose-contacting position.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: July 25, 1995
    Assignee: Harnischfeger Corporation
    Inventor: Darryl R. Immel
  • Patent number: 5307571
    Abstract: A high production dragline bucket which has a low profile in the back wall as well as fewer components than those commonly in use. The bucket is not only lower in production costs, but has higher operating efficiencies. It is adaptable to both single or double sheave dumping assemblies. A replaceable basket portion for the bucket is also described.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: May 3, 1994
    Assignee: Bucyrus Erie Company
    Inventors: Donald J. Behlendorf, Frederick J. Keip, Robert L. Benson
  • Patent number: 5251389
    Abstract: The invention is an improvement in a machine such as a surface mining "shovel" having an arm, a bucket-like digging dipper and a brace. The latter is used to maintain a selected "rake angle" between the arm and the dipper. The brace has first and second end lugs and extends between the arm and the dipper. The improvement comprises a tube-like collar interposed between and connecting the lugs. At least the first end lug is positionally adjustable with respect to the collar so that the "rake angle" between the arm and the dipper may be readily selected. In a highly preferred embodiment, each end lug is threaded to an opposite end of the collar and better "vernier" adjustment of the rake angle results.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: October 12, 1993
    Assignee: Harnischfeger Corporation
    Inventor: Jay C. Bessey
  • Patent number: 5250199
    Abstract: A sludge scraper apparatus for scraping a sludge sediment from an earthen bottom of a sludge reservoir, is described. The scraper apparatus is comprised of a main frame that provides for mounting a pair of skids, a scraper blade and a pair of wheels mounted on the apparatus. A first tow line is connected between the frame and a first winch, mounted on a first shore of the reservoir. A second tow line is connected between the skids and a second winch, mounted on a second shore of the reservoir. The first winch then moves the scraper apparatus over the earthen bottom of the reservoir from a starting position adjacent the second shore of the reservoir by spooling up the first tow line. This causes the scraper apparatus to move in a pass over the bottom of the reservoir, with the scraper blade plowing loose sludge sediment towards the first shore. Then, the second winch is used to move the sludge scraper back towards the second shore and the starting position by spooling up the second tow line.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: October 5, 1993
    Assignee: Enviroland, Inc.
    Inventor: Roger Haag
  • Patent number: 5241765
    Abstract: A lock assembly for a surface subject to abrasive wear including a base element and a wear element coupled either by conforming T-shaped elements or dovetails and which includes a lock resiliently urged against an integral keeper in the base or wear element.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: September 7, 1993
    Assignee: ESCO Corporation
    Inventors: Larren F. Jones, Emory D. Hungerford, Frederick C. Goeth