Cable Or Strap Support Patents (Class 405/302.2)
  • Patent number: 11867062
    Abstract: The present disclosure relates to a construction method for a deformable anchor cable capable of being prestressed. The anchor cable includes an outer sleeve, a shrinkage pipe, an inner sleeve, a steel strand, an anchor and a tray. When the anchor cable is in use, a hole is drilled first, then the anchor cable is mounted in the drilled hole, and finally a prestress is applied to the steel strand of the anchor cable. According to the construction method, the construction is convenient; the anchor cable has the characteristics of high strength and large deformation, and can be easily prestressed; and the large deformation is realized by squeezing the inner sleeve by means of the anchor, which completely overcomes the problem of breaking a cold-drawn rod during the large deformation process.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: January 9, 2024
    Assignee: Fuzhou University
    Inventors: Xuezhen Wu, Yujing Jiang, Tao Deng, Gang Wang, Zhenchang Guan, Qing Ye
  • Patent number: 10202848
    Abstract: The present application relates to a system for supporting a roof of a portion of a mine. The system includes a first plurality of stabilizing members disposed above the roof at a first elevation. The first plurality of stabilizing members originate from a first common location and terminate at a second elevation that is higher than the first elevation. The system further includes a second plurality of stabilizing members disposed above the roof and the first plurality of stabilizing members at a third elevation. The second plurality of stabilizing members originate from a second common location and terminate at a fourth elevation that is higher than the third elevation. The second plurality of stabilizing members are disposed generally perpendicular to the first plurality of stabilizing members.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: February 12, 2019
    Assignee: REI, Inc.
    Inventors: Daniel J. Brunner, Jeffrey D. Jorgensen, Jeffrey G. Burton, Jeffrey J. Schwoebel, Michael J. Hardin, Forrest Paul Schumacher
  • Patent number: 8926230
    Abstract: A low profile tensionable bolt cable system and method of installation. The tensionable bolt cable has a tension cylinder with a constant diameter throughout its length and a threaded exterior. A bearing plate is provided with an opening and a first mating member. The tension cylinder has a proximal and a distal end with the proximal end having an angled interior surface and a longitudinally extending second mating member. The first and second mating members mate when the tension cylinder is inserted into the bearing plate. Angled wedges are inserted into the angled interior surface. A cable is inserted into the tension cylinder and between the wedges to hold the cable with respect to the tension cylinder to prevent the cable from twisting. A nut is threaded onto the tension cylinder, to tension the cable.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 6, 2015
    Assignee: Minova USA, Inc.
    Inventors: Stephen C. Tadolini, Larry B. McKinney
  • Patent number: 8757934
    Abstract: A cable bolt includes a cable having a first end and a second end, and a barrel and wedge assembly attached to the cable at a position adjacent to the first end of the cable. The barrel and wedge assembly has a first end and a second end. The cable bolt also includes a nut positioned adjacent to the first end of the barrel and wedge assembly and defines a sealed interface therebetween. The nut defines a passageway in fluid communication with the cable.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: June 24, 2014
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: James D. Hall, Fred Stafford, John G. Oldsen, Dakota Faulkner
  • Patent number: 8740504
    Abstract: An apparatus for retensioning a loose roof plate held by a roof bolt, includes a main spacer, a washer, and a nut. The main spacer occupies a space between a head of the roof bolt and the loose roof plate, and the main spacer has a threaded circumferential outer surface and a radially extending slot for inserting a shaft of the roof bolt therein. The washer occupies a space between the main spacer and the loose roof plate, and the washer has a radially extending slot for inserting the shaft of the roof bolt therein. The nut has a threaded hole for passing the head of the roof bolt therethrough, for threading onto the threaded spacer and for tightening onto the threaded spacer until the roof plate is firmly pressed against the roof.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 3, 2014
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: John G. Oldsen, John C. Stankus, Travis Mikel Sub
  • Patent number: 8714883
    Abstract: A friction bolt, for frictionally engaging the internal surface of a bore drilled into a rock face. The friction bolt comprises an elongate, generally circular tube which is expandable radially. The tube has a leading end and a trailing end. An expander mechanism is disposed within the tube for applying a load tending to expand at least a section of the tube radially. An elongate tendon is disposed longitudinally within the tube and in connection at or towards one end of the tendon with the expander mechanism and in connection at or towards an opposite end of the tendon with an anchor arrangement. The tendon is actuatable to expand the expander mechanism and to remain connected between the expander mechanism and the anchor arrangement while the expander mechanism is expanded.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: May 6, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mieczyslaw Rataj
  • Publication number: 20140119840
    Abstract: A cable bolt comprising a plurality of flexible steel filaments formed around a central member, the cable bolt having spaced bulbous portions along the length of the bolt each bulbous portion defining a cavity containing a segmented ring that surrounds the central member to engage the filaments of the bulbous portion.
    Type: Application
    Filed: March 28, 2013
    Publication date: May 1, 2014
    Applicant: FCI Holdings Delaware, Inc.
    Inventor: FCI Holdings Delaware, Inc.
  • Patent number: 8690484
    Abstract: A cable bolt comprising a tension member having a first end and a second end. A rotatable collar is positioned on the tension member and is rotatable relative to the tension member. An elongate sheath, having a first end and a second end, is disposed over at least a portion of the tension member and secured to the rotatable collar. A method of securing an anchor in a structure is also disclosed.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 8, 2014
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: John G. Oldsen, Dakota Faulkner
  • Patent number: 8647020
    Abstract: A cable bolt button comprising a continuous sidewall having a first end, a second end and an end portion attached to the first end of the sidewall, forming an inner cavity. The cable bolt button forms an interference fit between the sidewall of the cable bolt button and a cable bolt when the button is placed over the distal end of the cable bolt. The cable bolt button may also include a plurality of protrusions extending outwardly from the end portion away from the inner cavity and/or at least one recess. The protrusions may be separate features of the end portion or the first end of the sidewall may have a non-linear profile with the periphery of the end portion following the profile of the sidewall to form the protrusions and recesses. The end portion may also comprise a plurality of intersecting surfaces further shaping the protrusions and recesses.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: February 11, 2014
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: John C. Stankus, Dakota Faulkner, John Feyrer, John G. Oldsen, Jeffrey J. Stankus
  • Patent number: 8567016
    Abstract: A splice tube includes a body, first and second wedge assemblies, first and second plugs, and a securing member that secures at least one of the first and second plugs to the body. The body defines first and second passageways that extend through the body. Each passageway of the body has a first end and a second end. The first and second wedge assemblies each have a passageway. At least a portion of the first and second wedge assemblies are positioned within the first and second passageways, respectively. The first and second plugs are at least partially positioned within the passageway of the first and second wedge assemblies, respectively.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: October 29, 2013
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: John C. Stankus, John G. Oldsen, Demrey G. Brandon, John Daniel Feyrer, Dakota Donald Faulkner
  • Patent number: 8550751
    Abstract: A cable bolt and related methods are provided. In one aspect of the invention, the bolt includes a sleeve for connecting or securing to a cable. A plurality of facets along a peripheral portion of the sleeve create corners that prevent the cable from rotating within the borehole during installation. The sleeve may he secured to the cable using resin.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: October 8, 2013
    Assignee: DSI Underground Systems, Inc.
    Inventor: William G. Fox
  • Publication number: 20130149046
    Abstract: An apparatus for retensioning a loose roof plate held by a roof bolt, includes a main spacer, a washer, and a nut. The main spacer occupies a space between a head of the roof bolt and the loose roof plate, and the main spacer has a threaded circumferential outer surface and a radially extending slot for inserting a shaft of the roof bolt therein. The washer occupies a space between the main spacer and the loose roof plate, and the washer has a radially extending slot for inserting the shaft of the roof bolt therein. The nut has a threaded hole for passing the head of the roof bolt therethrough, for threading onto the threaded spacer and for tightening onto the threaded spacer until the roof plate is firmly pressed against the roof.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: FCI HOLDINGS DELAWARE, INC.
    Inventor: FCI Holdings Delaware, Inc.
  • Publication number: 20120251245
    Abstract: A cable bolt assembly incorporating a head that distributes loads and minimizes the risk of potential failure caused by cable bolt head protrusion through the load bearing plate due to plate deformation. A flush seat cable bolt head includes a tapered nose portion, a flush seating portion that acts to distribute loads and a head portion of any geometrical consideration, either external or internal that is used to drive the head.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 4, 2012
    Applicant: Excel Mining Systems LLC
    Inventor: Anthony John Spencer SPEARING
  • Patent number: 8277148
    Abstract: A re-tensionable cable bolt and related methods are provided. In one aspect of the invention, the bolt includes a sleeve for connecting or securing to a cable. The sleeve includes a lower end having a bore adapted for receiving a threaded shank for associating with a tension nut. A plurality of facets along a peripheral portion of the sleeve create corners that prevent the cable from rotating within the borehole during installation. The sleeve may be secured to the cable using resin, which forms another aspect of the invention.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: October 2, 2012
    Assignee: Rhino Technologies LLC
    Inventor: William G. Fox
  • Patent number: 8277149
    Abstract: A tensionable cable bolt including a length of multi-strand cable and an anchoring portion comprised of a shaft received on the cable and attached to the cable at a crimp portion comprising at least one primary crimp with at least one secondary crimp disposed within the primary crimp. The cable may include a mixing portion and the anchor portion may include an expansion anchor threaded onto the shaft. A method of manufacturing the tensionable cable bolt includes providing a length of multi-strand cable; providing an anchoring portion including a shaft; extending the cable through the shaft; and crimping the shaft to the cable to form at least one primary crimp with at least one secondary crimp disposed within the primary crimp. The method may further include threading an expansion anchor onto the shaft and/or providing a resin mixing portion along the cable.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: October 2, 2012
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: Allen W. Sligar, Clifford W. Perkins
  • Patent number: 8251617
    Abstract: A rock anchor (10) which includes a cable (12) with a hollow core, an expansion mechanism (20) at one end of the cable, a tube (14), which acts on a load washer (16), in which part of the cable is located, and a wedge (18) which locks the cable to the tube.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: August 28, 2012
    Assignee: Sandvik Mining and Construction RSA (pty) Ltd
    Inventor: Jarmo Uolevi Leppanen
  • Publication number: 20120034038
    Abstract: A splice tube includes a body, first and second wedge assemblies, first and second plugs, and a securing member that secures at least one of the first and second plugs to the body. The body defines first and second passageways that extend through the body. Each passageway of the body has a first end and a second end. The first and second wedge assemblies each have a passageway. At least a portion of the first and second wedge assemblies are positioned within the first and second passageways, respectively. The first and second plugs are at least partially positioned within the passageway of the first and second wedge assemblies, respectively.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 9, 2012
    Applicant: FCI HOLDINGS DELAWARE, INC.
    Inventors: John C. Stankus, John G. Oldsen, Demrey G. Brandon, John Daniel Feyrer, Dakota Donald Faulkner
  • Publication number: 20110311319
    Abstract: Improved roof cable bolts with reduced protrusion from a mine roof. Particularly, a roof cable bolt head can preferably be dimensioned such that most of its length fits inside a drilled hole in the mine roof.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Applicant: EXCEL MINING SYSTEMS LLC
    Inventor: Anthony John Spencer Spearing
  • Patent number: 8057128
    Abstract: A truss shoe for a roof support system includes a bolt receiving section, an intermediate section, and a cable engaging section. The cable receiving section has a passageway having a first open end spaced from, and in facing relationship, to the bolt receiving section and an opposite second end, wherein the passageway has a cone-shaped portion having a decreasing diameter as the distance from the first end of the passageway increases to receive a wedge shaped cable retention assembly. The surface of the intermediate section includes a cut out portion that extends from the first opening of the passageway toward the bolt receiving section and terminating at a riser. A locking tube has one end in the passageway in facing relationship to the retention assembly and the other end in engagement with the riser to prevent the retention assembly from moving out of the first opening of the passageway.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: November 15, 2011
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: John C. Stankus, John G. Oldsen, Xiaoting Li, John Feyrer, Dakota Faulkner, Arthur J. Craven, Demrey G. Brandon
  • Patent number: 8033760
    Abstract: A tensioning assembly 10 for a cable bolt 11 comprises a clamping device (14, 16) adapted for fastening to the bolt and an outer member 18 adapted for interacting with the clamping device. The outer member 18 is able to undergo relative movement to the clamping device in the direction of the bolt's axis, and under such movement, the clamping device is caused to fasten to the bolt. Furthermore, the outer member is adapted for interacting with the bolt 11 whereby, during such relative movement, twisting of the bolt 11 with respect to the outer member 18 is restrained.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: October 11, 2011
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: Harold Gregory Hinton, Jeremy Ross Arnot, Peter Harold Craig, Timothy Joseph Gaudry
  • Publication number: 20110085861
    Abstract: A grout applicator including a grout tube adapted to detachably connect to a strata support cable or tendon, or a tensioning device associated therewith, for grouting an annulus between an elongate rock cavity and the support cable or tendon, the grout tube having a grout passageway in fluid communication with the annulus; and a clamp member movably coupled to the grout tube for clamping of the grout tube to the support cable or tendon, or the tensioning device, whereby in operation grout is injected into the annulus via the grout tube.
    Type: Application
    Filed: September 17, 2010
    Publication date: April 14, 2011
    Applicant: Hilti Aktiengesellschaft
    Inventors: Neville Jukes, Brian Woolnough
  • Patent number: 7896581
    Abstract: A re-tensionable cable bolt and related methods are provided. In one aspect of the invention, the bolt includes a sleeve for connecting or securing to a cable. The sleeve includes a lower end having a bore adapted for receiving a threaded shank for associating with a tension nut. A plurality of facets along a peripheral portion of the sleeve create corners that prevent the cable from rotating within the borehole during installation. The sleeve may be secured to the cable using resin, which forms another aspect of the invention.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: March 1, 2011
    Assignee: Rhino Technologies LLC
    Inventor: William G. Fox
  • Publication number: 20100310325
    Abstract: A truss shoe for a roof support system includes a bolt receiving section, an intermediate section, and a cable engaging section. The cable receiving section has a passageway having a first open end spaced from, and in facing relationship, to the bolt receiving section and an opposite second end, wherein the passageway has a cone-shaped portion having a decreasing diameter as the distance from the first end of the passageway increases to receive a wedge shaped cable retention assembly. The surface of the intermediate section includes a cut out portion that extends from the first opening of the passageway toward the bolt receiving section and terminating at a riser. A locking tube has one end in the passageway in facing relationship to the retention assembly and the other end in engagement with the riser to prevent the retention assembly from moving out of the first opening of the passageway.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 9, 2010
    Applicant: JENNMAR CORPORATION
    Inventors: John C. Stankus, John G. Oldsen, Xiaoting Li, John Feyrer, Dakota Faulkner, Arthur J. Craven, Demrey G. Brandon
  • Patent number: 7802943
    Abstract: A low-profile mine roof support device comprises a roof plate and a barrel. The roof plate is generally flat and defines a through-bore. The barrel includes a head disposed at a first end, and a cylindrical body disposed at a second end. A tapered bore extends from the first end of the barrel toward the second end, and is for receiving a cable. At least one wedge is adapted to be received within the tapered bore of the barrel to anchor the cable thereto. The head of the barrel comprises a convex surface that seats against the plate such that a portion of the head penetrates the bore and intersects the first and second planes, thereby reducing the extent to which the support device extends into the mine without sacrificing the working length of the barrel.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: September 28, 2010
    Inventors: Roland Walker, Alexander I. Wallstein
  • Patent number: 7717650
    Abstract: A truss shoe for a mine roof truss comprises a base having a pair of ends, a curved side extending between the ends, a top side, and a bearing surface. The shoe includes an angled stanchion having a bore and a housing having a tapered bore, with a recess between the housing and stanchion. A retainer is sized to fit in the recess, with the retainer having an aperture disposed adjacent an end such that the blocks a portion of the opening of the bore in the housing to retain a wedge assembly in the tapered bore.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: May 18, 2010
    Assignee: Dywidag-Systems International, U.S.A., Inc.
    Inventors: Tony Reschke, Roland Walker, Raymond Brandon
  • Patent number: 7690868
    Abstract: A cable coupler includes a body having a first end, a second end, and first and second passageways sized and shaped to receive a cable, with each passageway including a tapered portion. A wedge assembly is disposed in each tapered portion to secure a cable to the body. A clip assembly is attached to the body adjacent the tapered portion of each of the passageways and is shiftable between a closed position in which the clip assembly is positioned to prevent an adjacent one of the wedge assemblies from exiting the corresponding passageway and an open position in which the adjacent wedge assembly is insertable into the tapered portion of the corresponding passageway.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: April 6, 2010
    Inventors: Alexander I. Wallstein, Raymond Brandon, Tony Reschke, Roland Walker
  • Patent number: 7648311
    Abstract: A cable bolt is provided that is suited to stabilize rock surfaces, particularly to withstand loads placed on the cable bolt when tensioned to stabilize rock surfaces of coal mines. The cable bolt comprises a tendon composed of a plurality of strands, the tendon having a plurality of pre-formed bulbous portions. The bulbous portions house rigid elements, such as a ball bearing, which are inserted after the bulbous portions are formed. When the cable bolt is tensioned or stressed, the load placed on the bulbous portion will be resisted by the rigid element housed within the bulbous portion, thereby preventing the bulbous portion from collapsing.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: January 19, 2010
    Assignee: Garford Pty Ltd
    Inventor: Neville Hedrick
  • Publication number: 20090317197
    Abstract: A tensioning assembly 10 for a cable bolt 11 comprises a clamping device (14, 16) adapted for fastening to the bolt and an outer member 18 adapted for interacting with the clamping device. The outer member 18 is able to undergo relative movement to the clamping device in the direction of the bolt's axis, and under such movement, the clamping device is caused to fasten to the bolt. Furthermore, the outer member is adapted for interacting with the bolt 11 whereby, during such relative movement, twisting of the bolt 11 with respect to the outer member 18 is restrained.
    Type: Application
    Filed: April 16, 2009
    Publication date: December 24, 2009
    Applicant: Jennmar Corporation
    Inventors: Harold Gregory Hinton, Jeremy Ross Arnot, Peter Harold Craig, Timothy Joseph Gaudry
  • Patent number: 7625155
    Abstract: Cable bolt assemblies including tension cylinders and tension nuts, alone or in combination with cables and roof bearing plates, for use in underground mines to support mine roofs, are disclosed herein, as well as methods of securing roof cables to and within a mine roof for superior and immediate support. The cables have a first end securable within a borehole in a roof, a second end for exposure from the borehole, and a weight bearing nut secured to the second end. The tension cylinder accommodates, yet is not affixed to, the cable, and includes a threaded exterior surface and an interior cable-accommodating channel. The tension nut has a threaded interior surface complementary to the threaded exterior surface of the tension cylinder, and is rotatable about the tension cylinder.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: December 1, 2009
    Assignee: Safe Overhead Systems, Inc.
    Inventors: Janet Faye McKinney, Larry Brock McKinney
  • Patent number: 7588394
    Abstract: A low-profile mine roof support device comprises a roof plate and a barrel. The barrel includes a nose portion, a shoulder portion, and a tapered bore for receiving a cable to secure the roof plate to the mine roof. The shoulder portion of the barrel comprises a convex surface that seats against the plate. So configured, a majority of the barrel, which includes the nose portion and the tapered bore, passes through the plate and into a drilled hole formed in the mine roof, thereby advantageously minimizing the extent to which the support device extends into the workspace of the mine without sacrificing the length of the barrel.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: September 15, 2009
    Assignee: DSI Ground Support Inc.
    Inventors: Roland Walker, Matthew S. Slatter
  • Patent number: 7553108
    Abstract: A method and apparatus for tensioning a staggered anchorage comprised of a plurality of tension members, which are anchored in a bore hole at various depths, thus having different free steel lengths. For each staggered anchorage, each tension member is tensioned up to a predetermined maximal load and is then subsequently adjusted to the working load. To achieve a consistent elongation reserve of the individual tension member and thus to increase the security of a staggered anchorage, the staggered anchorage is adjusted to the working load, all tension members are adjusted to a reduced elongation (?Iw) by a uniform elongation difference (?Imax??Iw) relative to the respective elongation (?Imax) of the predetermined maximal load. An arrangement for performing the method has a single tensioning plane, which is force interconnected with defined locking elements that are arranged on tension members in clamping planes.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 30, 2009
    Assignee: Dywidag-Systems International GmbH
    Inventors: Otmar Langwadt, Frank Schmidt
  • Patent number: 7547161
    Abstract: An apparatus for positioning a reinforcing tendon into a drill hole formed rock face including a body portion having a bore extending axially therethrough. The bore has a dimension selected to allow limited sliding movement of the tendon therethrough and includes a portion which tapers inwardly from a forward outfeed end towards a rearward or infeed end. A wedging member is movably provided in the bore. Movement of the wedging member towards the rearward end of the body results in its frictional engagement with the tendon to restrict its withdrawal from the body relative to the infeed end, whereas movement of the wedging member relative to the bore towards the outfeed end results in its disengagement from the tendon allowing it to be repositioned forwardly relative to the body. A drive is further provided to reciprocally move the body relative to the rock face.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: June 16, 2009
    Assignee: Mansour Mining Inc.
    Inventor: Rheal Gascon
  • Publication number: 20090067932
    Abstract: A re-tensionable cable bolt and related methods are provided. In one aspect of the invention, the bolt includes a sleeve for connecting or securing to a cable. The sleeve includes a lower end having a bore adapted for receiving a threaded shank for associating with a tension nut. A plurality of facets along a peripheral portion of the sleeve create corners that prevent the cable from rotating within the borehole during installation. The sleeve may be secured to the cable using resin, which forms another aspect of the invention.
    Type: Application
    Filed: December 2, 2005
    Publication date: March 12, 2009
    Inventor: William G. Fox
  • Publication number: 20090022544
    Abstract: A cable coupler includes a body having a first end, a second end, and first and second passageways sized and shaped to receive a cable, with each passageway including a tapered portion. A wedge assembly is disposed in each tapered portion to secure a cable to the body. A clip assembly is attached to the body adjacent the tapered portion of each of the passageways and is shiftable between a closed position in which the clip assembly is positioned to prevent an adjacent one of the wedge assemblies from exiting the corresponding passageway and an open position in which the adjacent wedge assembly is insertable into the tapered portion of the corresponding passageway.
    Type: Application
    Filed: June 9, 2008
    Publication date: January 22, 2009
    Applicant: DSI GROUND SUPPORT INC.
    Inventors: Alexander I. Wallstein, Raymond Brandon, Tony Reschke, Roland Walker
  • Publication number: 20080298904
    Abstract: A metal coupling used to join a strand cable with a threaded metal mine roof bolt includes a first portion having a first opening that is threaded to receive an engage with the bolt. The coupling includes a second portion having a second opening to receive and engage with the cable. A mine roof support includes a strand cable. The support includes a threaded metal mine roof bolt. The support includes a metal coupling which joins the strand cable with the threaded metal mine roof bolt that supports at least 1 ton of load from a mine roof when disposed in the mine roof. A method for forming a mine roof support includes the steps of screwing a threaded metal mine roof bolt into a first opening that is threaded of a metal coupling. There is the step of inserting a strand cable into a second opening of the metal coupling. There is the step of swagging the cable inside the coupling.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Inventor: Frank M. Locotos
  • Publication number: 20080205997
    Abstract: An apparatus for positioning a reinforcing tendon into a drill hole formed rock face including a body portion having a bore extending axially therethrough. The bore has a dimension selected to allow limited sliding movement of the tendon therethrough and includes a portion which tapers inwardly from a forward outfeed end towards a rearward or infeed end. A wedging member is movably provided in the bore. Movement of the wedging member towards the rearward end of the body results in its frictional engagement with the tendon to restrict its withdrawal from the body relative to the infeed end, whereas movement of the wedging member relative to the bore towards the outfeed end results in its disengagement from the tendon allowing it to be repositioned forwardly relative to the body. A drive is further provided to reciprocally move the body relative to the rock face.
    Type: Application
    Filed: January 30, 2008
    Publication date: August 28, 2008
    Inventor: Rheal Gascon
  • Patent number: 7384216
    Abstract: A cable coupler includes a body having a first end, a second end, and first and second passageways sized and shaped to receive a cable, with each passageway including a tapered portion. A wedge assembly is disposed in each tapered portion to secure a cable to the body. A clip assembly is attached to the body adjacent the tapered portion of each of the passageways and is shiftable between a closed position in which the clip assembly is positioned to prevent an adjacent one of the wedge assemblies from exiting the corresponding passageway and an open position in which the adjacent wedge assembly is insertable into the tapered portion of the corresponding passageway.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: June 10, 2008
    Assignee: Dywidag-Systems International USA
    Inventors: Alexander I. Wallstein, Raymond Brandon
  • Patent number: 7261494
    Abstract: A truss shoe for a roof support system includes a base member having a bearing surface and, optionally, an end having a sweeping radius for ease of moving the truss shoe into an installation position, a bolt receiving section having a bore hole, a cable engaging section, and an intermediate section. The cable engaging section includes an opening and a slot and, optionally, a lock-in device that allows a cable to move through the slot into the opening and retains the cable in the opening. In another non-limiting embodiment of the cable engaging section, the cable is moved into an assembly mounted in a conical-shaped passageway of the cable engaging section to compress the assembly around the cable. The intermediate portion includes a pair of side flanges on the base member between the bore and the opening and, optionally, a rib between the pair of side flanges.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: August 28, 2007
    Assignee: Jennmar Corporation
    Inventors: John C. Stankus, John G. Oldsen, Demrey G. Brandon, Arthur J. Craven, Jeffrey J. Stankus
  • Patent number: 7118310
    Abstract: A truss shoe for use on a mine roof truss having at least one inclined bolt and at least one horizontal cross member comprises a base including a first end, a second end, a first side and a second side extending between the first and second ends, a generally planar bearing surface, and a top side disposed opposite the bearing surface, the bearing surface arranged for contact with the mine roof. A stanchion is formed on the top side and includes a bore extending from a top end of the stanchion through the bearing surface, the bore sized to receive the inclined bolt. A bracket is formed on the top side and includes a laterally extending slotted bore sized to receive the horizontal bolt. A portion of the first end and a portion of the first side cooperate to form a curved edge.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: October 10, 2006
    Assignee: Dywidag-Systems International, U.S.A., Inc.
    Inventors: Alexander I. Wallstein, Roland Walker
  • Patent number: 7066688
    Abstract: A twin cable mine roof bolt includes a barrel having a first end, a generally dome-shaped second end, and an outer surface, a pair of angled and narrowing bores extending through the barrel, with each bore sized to receive a cable, a pair of wedges sized for placement in each of the bores to secure the cables, and a protrusion extending from the first end of the barrel and sized for insertion into a socket wrench.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: June 27, 2006
    Assignee: Dywidag-Systems International USA
    Inventors: Alexander I. Wallstein, Richard Pope
  • Patent number: 7037046
    Abstract: The present invention discloses a rock bolt having a tendon (1, 201) which is able to yield and thereby control movement of unstable rock strata into which the bolt is installed. The tendon has a portion which is provided with a grout slippage mechanism, preferably in the form of a tube (8) which surrounds the tendon. A two part grout anchor (10, 100, 200) is clamped to the tendon. The grout anchor is embedded in grout and is therefore essentially immovable. The tendon passing through the anchor is worked and thereby dissipates energy. The tendon can be either a multi-strand cable (1) or a solid bar (200). Various forms of anchor (10, 200) are disclosed with either complementary recess(es) (14) and protrusion(s) (15) or opposed protrusions (115) which form pinch point(s). A one piece grout anchor (300) is also disclosed.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: May 2, 2006
    Inventor: Jeffrey Robert Fergusson
  • Patent number: 6884005
    Abstract: Mine strata roof support components and truss comprising a mine roof support bracket with a roof bolt sleeve, a tie rod channel and a tool mount, the tool mount being coaxial with the roof bolt sleeve. These components permit the construction of a truss which can be installed quickly and safely to secure the mine strata. The present invention permits simultaneous installation of the roof bolt and bracket.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: April 26, 2005
    Inventor: Ben L. Seegmiller
  • Patent number: 6863476
    Abstract: A mobile system for manufacturing and installing rock reinforcing members in mining and tunnel construction applications where a plurality of holes are drilled into the rock and each hole receives a reinforcing member and grout. The reinforcing member can be steel strand or some other suitable material. The system has a plurality of cooperating devices, all mounted to a mobile self-propelled platform. The devices comprise a spool of reinforcing material, a motivating device for drawing material from of the spool through the system, a measuring device, a crimping device to give the steel strands a corrugated shape, an articulating arm with a guide head to guide the material into the drill hole and a cutter to cut the material into strands of desired length. A plurality of strands can be installed in a given drill hole. The system also includes apparatus for grouting the drill holes using either a cementacious grout or a polyester resin grout. Methods of making and grouting the reinforcing member are disclosed.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: March 8, 2005
    Assignee: Langford Industries, Ltd.
    Inventor: Michael Malkoski
  • Patent number: 6684585
    Abstract: An anchorage for a post-tension system including an anchor body having an interior cavity and a generally flat end surface, a tendon extending through the interior cavity of the anchor body, a plurality of wedges in interference-fit relationship between a wall of the interior cavity and a surface of the tendon, a cap member positioned outwardly of the flat end surface, and a ring juxtaposed against the inner surface of the cap member. The ring is physically deformed so as to provide a visual indication of a desired amount of tension applied to the tendon. The ring is received within an annular slot formed in the flat end surface of the anchor body.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: February 3, 2004
    Inventor: Robert Campbell
  • Patent number: 6612783
    Abstract: A mixing delay device for use with tensionable cable bolts wherein the mixing delay device compresses or is uncompressed in response to a compression force applied to the mixing delay device, wherein the mixing delay device increases resin mixing time, provides a visual indication of tensioning, and helps to reduce de-tensioning of the tensionable cable bolt.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: September 2, 2003
    Assignee: Jennmar Corporation
    Inventors: John C. Stankus, John G. Oldsen
  • Patent number: 6561721
    Abstract: A cable bolt comprises a cable with a tubular yielding fixture at one of its ends. The pull-off load of such yielding fixture can be adjusted to a desired value. This is achieved by unwinding one end of the cable and inserting a slug over the kingwire. Then, the peripheral wires are wound again over the kingwire forming a bulge in the cable where the slug is located. The yielding fixture is then slid on the cable and forced over the bulged portion of the cable, while measuring the load required to achieve this operation, which also becomes the pull-off load of the yielding fixture. Finally, any part of the cable protruding from the fixture is cut-off to form the cable bolt with the desired yielding fixture at its end.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: May 13, 2003
    Assignee: Mine Design Technologies Inc.
    Inventors: Peter Lausch, Andrew J. Hyett
  • Patent number: 6435778
    Abstract: A truss system for supporting a face of a passage in a geological structure, such as a mine roof. A truss support bracket is carried on the proximal end of an anchor positioned adjacent each of a pair of spaced boreholes formed in the face or mine roof. At least one of the brackets includes a retainer, such as a split wedge retainer, for receiving a corresponding end of a truss member, such as an elongated cable, spanning across the adjacent face. A rotary fastener threaded to the proximal end of each anchor holds each bracket in place. Using a motive device, such as the rotational socket on a bolting machine, a selected one of the fasteners is rotated such that the corresponding bracket is drawn along the anchor and at least partially into the borehole to tension the truss member. To provide the desired support, one or more plates are carried on the truss member engage the face once tensioning is complete.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: August 20, 2002
    Assignee: Triad Support Systems, Inc.
    Inventor: William G. Fox
  • Patent number: 6428243
    Abstract: A cable bolt (10) for use in mining excavations comprising a plurality of generally closely spaced wires or strands (11) which have a first end for fitting into a bore hole (21) formed in an excavation and a second end which is terminated within a cylindrical sleeve (17). The sleeve (17) has a threaded external surface for receiving a lock nut (18) which is tightened against a bearing plate (19) so as to tension the cable bolt (10). The wires or strands (11) are separated outwardly from a central longitudinal axis of the cable bolt (10) at spaced locations along the length of the cable bolt to form a “bird cage” (13) at each location. Spacers (14) are provided at each location to cause the outward separation of the wires or strands (11). A central tubular member (12) extends along the axis through the sleeve (17) and each spacer (14).
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: August 6, 2002
    Assignee: Quantax PTY LTD
    Inventor: Warwick Bernard Hutchins
  • Patent number: 6402433
    Abstract: A tensionable mine roof bolt is constructed of multi-strand steel cable. The head end of the bolt is formed of an outer sleeve that is externally threaded at least part of the way from the end, in order to accept a conventional tension nut. The cable bolt shaft includes an enlarged section that is slightly larger than the diameter of the axial bore through the bolt head sleeve so that the cable enlarged section interferes with the bolt head sleeve as the enlarged section is pressed into the outer sleeve to form the cable bolt. The cable enlarged section is formed by the addition of a spacer sleeve around the cable center strand (king wire) and between the cable center strand and peripheral strands, or by the addition of a cable sleeve around the cable at the appropriate location.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: June 11, 2002
    Inventor: H. Doug Gillespie
  • Patent number: 6322290
    Abstract: A mine roof bolt includes a flexible multi-strand cable having a first and second end with a drive head formed on the first head, the drive head having a plurality of driving faces on an exterior surface thereof. A load bearing barrel and wedge assembly is attached to the cable, with a separate drive head attached to the cable, wherein the separate drive head is utilized substantially for rotating the cable.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: November 27, 2001
    Assignee: Jennmar Corporation
    Inventors: Frank Calandra, Jr., Eugene H. Stewart, Stanley Ponce, John G. Oldsen, John C. Stankus, Brian R. Castle