With Settable Material Feature Patents (Class 405/259.5)
-
Patent number: 11578536Abstract: An apparatus for feeding a tubular object inside a drill hole, a rock drilling rig and a method of supporting mouth openings of drill holes is provided. The apparatus includes a support device for supporting an elongated tube element blank having the potential for several successive tube inserts. A front end of the tube element blank is moved longitudinally inside a drill hole by means of a feeding device. Thereby, the drill hole is provided with a protective section extending a limited longitudinal dimension towards a bottom of the drill hole. The apparatus further includes a separation device for detaching the mentioned tube inserts one by one from the tube element blank.Type: GrantFiled: December 3, 2019Date of Patent: February 14, 2023Assignee: SANDVIK MINING and CONSTRUCTION OYInventors: Juha Piipponen, Johannes Välivaara
-
Patent number: 11536137Abstract: The various disclosed embodiments provide a split set type composite rockbolt which has a slot extending from a chamfered tip of a tubular body portion of the rockbolt and through a neck portion partway to a collar portion. The rockbolt is made of a composite material which has a resin medium with longitudinal and circumferential fibres.Type: GrantFiled: November 28, 2018Date of Patent: December 27, 2022Assignee: SALTUS MINING AFRICA (PTY) LIMITEDInventors: Johann Adriaan Venter, Eckardt Rocco Du Plessis, Rual Abreu
-
Patent number: 11414867Abstract: A rebar anchoring system and method are provided. The system includes: a rebar, with an external thread formed on the periphery of at least one end; an anchoring head, with a first perforation and a second perforation disposed respectively at both ends extending axially into the anchoring head and communicating with each other, the inner sides of the first and second perforations being formed respectively with a first internal thread matching with the external thread of the rebar and a second internal thread, and the anchoring head being mounted on the end of the rebar through the first internal thread and the external thread of the rebar; and a bolt, having a screw rod matching with the second internal thread, the screw rod being locked into the second perforation of the anchoring head, and the end of the screw rod pressing against the end of the rebar.Type: GrantFiled: January 5, 2021Date of Patent: August 16, 2022Inventor: Su-I Lim
-
Patent number: 11377808Abstract: The invention relates to an anchor device for a prestressed diaphragm wall, comprising at least one prestressing reinforcement and a sleeve encasing said at least one prestressing reinforcement and forming an anchorage for said at least one prestressing reinforcement in the diaphragm wall, a length (Ld) of the anchor sleeve being strictly less than a length (La) of said at least one prestressing reinforcement, the anchor sleeve comprising a sealing material disposed in such a way as to coat each prestressing reinforcement, the anchor device comprising a corrosion-resistant coating of each prestressing reinforcement.Type: GrantFiled: February 13, 2018Date of Patent: July 5, 2022Assignee: SOLETANCHE FREYSSINETInventors: Marco Novarin, Bertrand Steff De Verninac, Thierry Jeanmaire, Nicolas Demey
-
Single-anchor centrally grouted full-length anchored steel wire bundle and supporting method thereof
Patent number: 11280195Abstract: A single-anchor centrally grouted full-length anchored steel wire bundle and a supporting method thereof are described herein. The steel wire bundle consists of parallel steel wires and a central pipe, wherein multiple strands of parallel steel wires are arranged around the central pipe, the central pipe is provided with a slurry output bracket which divides the parallel steel wires into a front part and a rear part, the front part is provided with large stirring jackets, and the rear part is provided with a threaded casing on its tail end. After the coal is cut by a tunneling machine and a roadway is formed, the steel wire bundle is anchored at the ends, and the roadway tunneling speed is increased; central grouting is carried out for the steel wire bundle so as to anchor the steel wire bundle in full length and ensure long-time stability of the roadway.Type: GrantFiled: October 29, 2018Date of Patent: March 22, 2022Assignee: China University of Mining and TechnologyInventors: Nong Zhang, Zhengzheng Xie, Junyao Zhou, Qun Wei -
Patent number: 11213873Abstract: A mine bolt bending system includes a frame comprising a plurality of bolt receiving portions each configured to receive and hold a mine roof bolt, a bolt contact member secured to the frame, with the bolt contact member rotatable relative to the frame between a first position and second position, and an actuator secured to the frame, with the actuator configured to move the bolt contact member between the first and second positions. The bolt contact member is configured to bend a mine bolt when rotating from the first position to the second position.Type: GrantFiled: June 11, 2020Date of Patent: January 4, 2022Assignee: FCI Holdings Delaware, Inc.Inventors: John C. Stankus, Zachary Stevens, Dakota Faulkner, Mark Crable, Karl Anthony Calandra
-
Patent number: 11137009Abstract: The invention relates to an anchor rod (10) for a chemical anchor system for use in a bore hole filled with mortar mass, which anchor rod has an anchoring region (12), which comprises the front end (16) of the anchor rod (10), and a connecting region (14), which has a thread (24) and, at the front end of the connecting region, a transition region (28), wherein the thread (24) is provided at least partially in the transition region (28) and is sealed with a coating (30) in the transition region (28).Type: GrantFiled: July 11, 2017Date of Patent: October 5, 2021Assignee: Hilti AktiengesellschaftInventor: Martin Kuhn
-
Patent number: 11041385Abstract: An anchor rod includes a sleeve open at one end and having a blocking plate at the other end; a pressure relief pipe fixedly arranged on an inner wall of the sleeve; and a rod body. A guide hole is formed in a center of the blocking plate. A part of the rod body penetrates through the guide hole and extends into the sleeve. A gap is formed between the pressure relief pipe and the blocking plate. An overflow valve is connected to the pressure relief pipe. A piston in sliding seal fit with the sleeve and the pressure relief pipe is arranged at the rod body. A sealing ring in sliding seal fit with the rod body is arranged at the inner wall of the guide hole; and a sealing cavity between the blocking plate and the piston in the sleeve is filled with emulsion.Type: GrantFiled: September 30, 2020Date of Patent: June 22, 2021Assignee: HENAN POLYTECHNIC UNIVERSITYInventors: Hua Nan, Longfei Nan, Yingming Wen, Arshad Faizan, Zhiqiang Han
-
Patent number: 10982542Abstract: The invention relates to a sleeveless energy absorbing rock bolt. A first end of the rock bolt is configured to facilitate the mixing of an anchoring composition and/or anchoring the rock bolt in the rock. The rock bolt comprises manganese alloyed steel, and exhibits, post the yield point thereof, under static load conditions, an increase in load capacity and an increasing displacement until the break or fail point of the rock bolt is reached.Type: GrantFiled: September 14, 2018Date of Patent: April 20, 2021Assignee: RAND YORK CASTINGS (PTY) LIMITEDInventor: Michael Robert Corbett
-
Patent number: 10968702Abstract: A rock drilling machine, rock drilling rig and method of reinforcing rock surfaces by means of grouting material is provided. The grouting material is fed through the rock drilling machine to a drilling tool connected to the rock drilling machine. The rock drilling machine include a flushing feed path, which is utilized in the feeding of the grouting material.Type: GrantFiled: September 25, 2019Date of Patent: April 6, 2021Assignee: SANDVIK MINING AND CONSTRUCTION OYInventors: Maunu Mänttäri, Anssi Kouhia
-
Patent number: 10941657Abstract: A mine bolt includes an elongated body having a first end and a second end positioned opposite the first end, with the elongated body having a first threaded section, a second threaded section, and a non-threaded section positioned between the first threaded section and the second threaded section. The non-threaded section is configured to yield under loading when the mine bolt is installed with grout in a bore hole.Type: GrantFiled: July 10, 2017Date of Patent: March 9, 2021Assignee: FCI Holdings Delaware, Inc.Inventors: Lumin Ma, Dakota Faulkner, John C. Stankus
-
Patent number: 10815780Abstract: Disclosed is a resin bolt which includes an elongate shaft which extends between a leading end and a trailing end and a positioning head which is integral to the shaft at the leading end and which extends in the elongate axis of the shaft from a perimeter rim to a crown, with the head formed with a plurality of projections, with each projection extending laterally, beyond the radial dimension of the shaft and each projection having a leading surface which slopes, at least partially, from the crown to the perimeter rim, and a trailing surface from the perimeter rim to the shaft.Type: GrantFiled: June 7, 2018Date of Patent: October 27, 2020Assignee: EPIROC DRILLING TOOLS ABInventors: Brendan Robert Crompton, James William Sheppard
-
Patent number: 10518290Abstract: A device (1) for introducing a plugging compound (20) into a borehole (21), the device having a sleeve (2) with a cavity (3) for receiving the plugging compound (20). On one side, the sleeve (2) has a discharge opening (5), corresponding to the cavity (3), for discharging the plugging compound (20), and a support section (7), projecting laterally from the sleeve, for providing a support option for the sleeve (2) during introduction of the plugging compound (20). On the opposite side of the sleeve (2), an upper opening (4) is provided, through which a piston (16) together with a feed plate (18) protrudes into the cavity (3). The piston (16) is movable relative to the sleeve (2) in such a way that the feed plate (18) can be displaced in the cavity (3), for example to allow the plugging compound (20) to be received and dispensed.Type: GrantFiled: February 19, 2015Date of Patent: December 31, 2019Assignee: Henkel AG & Co. KGaAInventors: Karsten Wolf, Kai Ruthe-Steinsiek
-
Patent number: 10513924Abstract: An intelligent and flexible steel arch protection device for rockfall and collapse of tunnels, including an arch main body system and a flexible protection system. The arch main body system includes an arched rigid high-strength steel frame and a base. The flexible protection system includes two parallel supporting rods which are oppositely arranged on the steel frame along the circular arc of the arch. Connecting rods are arranged between the two supporting rods at intervals, and the two ends of the connecting rods are fixed to the two supporting rods. The connecting rods are sleeved with guide rods and elastic devices are arranged between the guide rods and the supporting rods. A plurality of rolling shafts vertical to the axial direction of the two-way guide rods and connected with the two-way guide rods are arranged between the adjacent two-way guide rods, and the rolling shafts are sleeved with flexile rollers.Type: GrantFiled: January 10, 2018Date of Patent: December 24, 2019Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Zhenhao Xu, Xintong Wang, Xin Huang, Chunjin Lin, Dongdong Pan, Peng Lin
-
Patent number: 10465515Abstract: A rock anchor assembly includes a rock anchor with a flexible element and first/second cylindrical connector elements engaged to proximal and distal ends of the element, a flexible tubular sleeve longitudinally extending between first and second ends, on the rock anchor so end parts of the rock anchor project from sleeve ends; a load bearing barrel centrally bored engaging the first connector element between the first end of the sleeve and a proximal end of the rock anchor, the barrel engaging the first end of the sleeve in sealing contact, the barrel having a grout conduit between the barrel exterior and the bore, the conduit defining part of a grout passage interconnecting the barrel exterior and sleeve interior, when the barrel engages the sleeve; a seal preventing grout outflow but accommodating grout inflow; a tensioner engaging the first tubular connector element, and a mechanical anchor engaging the second tubular connector.Type: GrantFiled: March 27, 2018Date of Patent: November 5, 2019Assignee: NCM INNOVATIONS (PTY) LTD.Inventors: Paolo Ettore Pastorino, Adrian Berghorst
-
Patent number: 10443380Abstract: An asymmetric support structure of entry driven along gob-side (EDG) under unstable roof in deep mines and construction method thereof. The asymmetric support structure includes roadway roof support structure, a gob-side support structure and a solid coal seam-side support structure. The roadway roof support structure includes a reinforcing wire mesh, a W-section steel strap, high-strength pretensioned bolts, and cable bolts and matching steel straps. The gob-side support structure includes a reinforcing wire mesh, a W-section steel strap, high-strength pretensioned yielding bolts and grouting cable bolts and its matching steel straps. The solid coal seam-side support structure includes a reinforcing wire mesh, a reinforced beam and steel strap pallet subassembly, high-strength pretensioned yielding bolts and cable bolts and its matching steel straps.Type: GrantFiled: October 31, 2017Date of Patent: October 15, 2019Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Kegong Fan, Chunyuan Jing, Shengming Niu, Deli Fan, Chuanwei Zang
-
Patent number: 10344593Abstract: A rock bolt assembly includes a rock bolt with an elongate body between distal and proximal ends, a tubular sleeve with first and second ends, proximal and distal ends of the bolt projecting from first and second ends of the sleeve, a load bearing barrel centrally bored to engage the rock bolt between the sleeve's first end and the bolt's proximal end, which barrel is adapted at a forward end to engage with the sleeve's second end in sealing contact, and which barrel has at least one grout conduit between the barrel's exterior surface and the bore, which at least one conduit defines a part of a grout passage which communicates the exterior surface of the barrel with an interior of the sleeve, when the barrel is engaged with the sleeve, and a seal which seals the grout passage to grout outflow but accommodates inflow of grout from a source.Type: GrantFiled: June 23, 2016Date of Patent: July 9, 2019Assignee: NCM INNOVATIONS (PTY) LTD.Inventors: Paolo Ettore Pastorino, Adrian Berghorst
-
Patent number: 10309221Abstract: An end coupling for a rock bolt having a shaft having an external thread, the coupling having an axis and the coupling comprising a body having a leading end and a trailing end spaced apart along the axis, a first passage portion extending along the axis from the leading end; a second passage portion extending along the axis from the trailing end; the first passage portion including a first thread portion to threadingly engage the external thread on the shaft of the rock bolt; the second passage portion including a drive receiving portion arranged to be engaged with a drive inserted into the second passage portion via the trailing end to impart rotation to the coupling about the axis.Type: GrantFiled: October 28, 2015Date of Patent: June 4, 2019Assignee: FCI Holdings Delaware, Inc.Inventors: Peter Harold Craig, Matthew Raffaele Holden
-
Patent number: 10253628Abstract: A rock bolt system includes a fitting having a main body defining a central opening configured to receive a rock bolt, with the main body defining a grout opening in fluid communication with the central opening, and a grout body defining a space between the main body and the grout body. The main body is rotatable relative to the grout body, with the grout body defining a resin port and a catalyst port. The resin port and the catalyst port are in fluid communication with the space and the grout opening of the main body. A rock bolt defines a central opening, with the central opening of the rock bolt configured to be in fluid communication with the central opening of the fitting when the rock bolt is secured to the fitting.Type: GrantFiled: September 1, 2017Date of Patent: April 9, 2019Assignee: J-LOK CO.Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
-
Patent number: 10006186Abstract: The present invention relates to an earth anchor and a construction method therefor, and is for facilitating the installation of a wale member and a head block member by using a pedestal member mounted on the outer surface of a retaining wall which is supported by the earth anchor, enabling the construction process to be simplified, thereby shortening construction time and reducing the amount of steel needed and construction costs.Type: GrantFiled: February 23, 2015Date of Patent: June 26, 2018Assignees: INCT CO., LTD.Inventor: Man-Yop Han
-
Patent number: 9974640Abstract: A unitary or homogeneous patterned implant is provided. The implant is constructed of patterned cells formed by way of a molding, die casting, laser etching, laser cutting, extruding, and the like. Portions of the implant can be formed into sinusoid or other waveform strut members. One or more undulating anchor arms or rods extend out from the implant for tissue fixation, with the one or more undulating anchor arms including one or more arcuate bends.Type: GrantFiled: September 24, 2012Date of Patent: May 22, 2018Assignee: Boston Scientific Scimed, Inc.Inventors: Dean W. Hacker, Karl A. Jagger, Benjamin M. Wilke, Seth C. Kelto, Jessica E. Felton
-
Patent number: 9908813Abstract: Described herein are reinforcing members for use in fabricating reinforced concrete, as well as methods of fabricating such reinforcing members. A reinforcing member can include a central reinforcement element and a supplementary cementitious material coated on the central reinforcement element. A method can including applying the supplementary cementitious material to the central reinforcement element, placing concrete around the reinforcing member, and allowing the concrete to cure. The supplementary cementitious material can be a pozzolan.Type: GrantFiled: May 27, 2015Date of Patent: March 6, 2018Assignee: UVic Industry Partnerships Inc.Inventor: Rishi Gupta
-
Patent number: 9890511Abstract: The invention provides a seal for placement between a washer plate of a rock bolt and a rock face, wherein the washer plate has an outer edge at a perimeter thereof and wherein the rock bolt has a longitudinal axis, wherein the seal comprises a body made of a spongy material, wherein the body is planar and has an outer dimension that matches that or that is larger than that of outer edge of the washer plate and an inner dimension that has a void towards the center of the inner dimension through-which the longitudinal axis of the rock bolt can pass. The seal is for preventing the leakage of cementing grout (that is used in securing the rock bolt in a bore hole in a mass of rock below a rock face) between the washer plate and the rock face.Type: GrantFiled: February 16, 2017Date of Patent: February 13, 2018Inventor: Lyle Kenneth Adams
-
Patent number: 9499951Abstract: A self-drilling rock bolt assembly (1) including a drill head mechanism (100) and a fluid delivery system (300) operatively associated with each other and adapted in use to secure a self-drilling rock bolt (200) into a strata (2). The rock bolt (200) having a shaft (210) having a cutting end (220) and a driving end (230). The drill head mechanism (100) having a bolt coupling portion (130) to releasably engage with the driving end (230) of the rock bolt (200). Wherein rotation of the bolt coupling portion (130) rotates the rock bolt. A central hollow portion (111) provides access to a fluid connection port (232) of the rock bolt and a nut coupling portion (120) releasably engages with a nut element (250) located on the shaft of the rock bolt. Wherein rotation of the nut coupling portion rotates the nut element.Type: GrantFiled: May 27, 2014Date of Patent: November 22, 2016Assignee: OKA ROCK BOLT TECHNOLOGIES PTY LIMITEDInventors: Mark Levey, Paul Charlton
-
Patent number: 9488048Abstract: A ground and rock anchor includes a longitudinally stable, flexible tensile member, an anchorage part, in which the tensile member may be fixed by the one end region, and an anchor head device, in which the tensile member is held by the other end region. The anchorage part is designed to be introduced into a drilled hole in the ground or rock and anchored therein. The longitudinally stable, flexible tensile member is provided at least at the one end region fixed in the anchorage part with at least one first loop. The anchorage part is a substantially prismatic or cylindrical longitudinal body, which is formed of a hardenable composition, by which the at least one first loop of the longitudinally stable, flexible tensile member is surrounded. This configuration allows the forces to be optimally transferred.Type: GrantFiled: July 15, 2014Date of Patent: November 8, 2016Assignee: F.J. Aschwanden AgInventor: Thomas Keller
-
Patent number: 9464524Abstract: An anchor rod is disclosed. The anchor rod includes an attachment region and an anchoring region which is insertable into a borehole and which has a profiled section. The profiled section interacts with a curable organic and/or inorganic mortar compound filled into the borehole. The profiled section includes a plurality of expansion sections disposed axially in a row which are conically shaped. For each of the plurality of expansion sections, a diameter of the expansion section increases in a direction toward a free front end of the anchor rod, a ratio of a distance of the expansion section to a mean borehole diameter is 0.40 to 0.60, a ratio of an outer diameter to a core diameter of the expansion section is 1.35 to 1.55, and a cone angle of the expansion section is 22.5° to 27.5°.Type: GrantFiled: July 10, 2012Date of Patent: October 11, 2016Assignee: Hilti AktiengesellschaftInventors: Josef Glogger, Bernhard Winkler
-
Patent number: 9458717Abstract: A connector is disclosed for providing a positive and/or a non-positive connection between at least two connecting partners. The connector or connecting means has at least one first region which engages with the first connecting partner by way of a positive and/or a non-positive connection, and at least one second region is provided which engages with the at least second connecting partner by way of a positive and/or a non-positive connection. The connecting means provides a positive and/or non-positive connection between at least two connecting partners in a simple and inexpensive manner and which meets high safety requirements. The second region of the connecting means has a region which is formed from an at least partially flat material made of an Fe alloy with shape memory characteristics and which, when activated, ensures the positive and/or non-positive connection with the second connecting partner by way of a change in shape.Type: GrantFiled: December 19, 2013Date of Patent: October 4, 2016Assignee: ThyssenKrupp Steel Europe AGInventors: Rainer Fechte-Heinen, Lothar Patberg, Joseph Georg Kevenhörster, Andreas Cott, Thomas Flaskamp, Vanessa Wieschalla, Erik Hilfrich
-
Patent number: 9376912Abstract: A filling apparatus for a grouting system. The filling apparatus comprises a first fill tube and a second fill tube. The first fill tube is discrete from the second fill tube. The first fill tube is disposed for transporting resin mastic and the second fill tube is disposed for transporting initiator. A portion of the first fill tube has an inlet opening through which an injection quill extends interiorly and downwardly through the first fill tube. The injection quill is disposed for transporting inhibitor. This disclosure also relates to a method for adjusting gel time of a grouting system used for anchoring a reinforcing member in an opening, a grouting system for anchoring a reinforcing member in an opening, and a method for anchoring a reinforcing member in a mine.Type: GrantFiled: August 21, 2013Date of Patent: June 28, 2016Assignee: FCI Holdings Delaware, Inc.Inventors: Roy Carlton Jones, Phillip Edwin Gramlich, Jr.
-
Patent number: 9273442Abstract: A subsurface support comprises a soil nail having an outer member and an inner member placed within the outer member. By crimping the outer member or by use of an insert installed between the inner and outer members, a uniform spaced relationship can be maintained between the inner and outer members. In another embodiment, the support is made of composite construction materials, and the support has a self-drilling capability. The outer member may be made from fiberglass, and a metallic drill bit is secured to a distal end of the soil nail. The inner member is preferably steel. In yet another embodiment, the support includes a plurality of outer threaded members with adjacent outer members interconnected by a threaded coupler. A continuous inner member may be placed through the outer members. The inner member may be threaded for attachment to the outer members that also have internal matching threads.Type: GrantFiled: December 23, 2009Date of Patent: March 1, 2016Assignee: R&B Leasing, LLCInventors: Colby Barrett, Timothy Allen Ruckman
-
Publication number: 20150132068Abstract: A method for anchoring a device in multilayer soil includes analyzing the soil to determine the depth, hardness and density of at least two layers of soils. The anchoring device is prepared for positioning by attaching a self-drilling bit to a bottom end of a hollow rod, attaching a drilling disc to the rod at a position above the self-drilling bit, attaching at least one helical disc to the rod above the drilling disc, and attaching a positioning plate to the rod at a distance from the drilling disc such that the distance from the bottom of the drilling disc to the bottom of the positioning plate is approximately equal to the depth of a first layer of soil. The anchoring device is drilled into the soil until the drilling disc rests on top of the second layer and the positioning plate rests on top of the first layer.Type: ApplicationFiled: January 26, 2015Publication date: May 14, 2015Inventor: Christian Meline
-
Publication number: 20150117962Abstract: The invention provides kit comprising a rock anchor (20) having a static mixer (60) and a two part resin system (80,90) wherein a first part (80) of the resin system comprises an isocyanate and a second part (90) of the resin system comprises a silicate; a rock anchor secured in a ground formation (140); and a method of securing a rock anchor.Type: ApplicationFiled: July 26, 2011Publication date: April 30, 2015Applicant: MINOVA INTERNATIONAL LIMITEDInventors: Andrew Sykes, Robert Hawker
-
Patent number: 9004820Abstract: A grouting method for anchoring with polymer is provided, wherein the method includes steps of: a) rod body processing; b) tying up a geotextile bag and grouting tubes on the anchoring rod body; c) hole drilling; d) polymer grouting: I. hole sealing grouting; II. anchoring grouting. The present invention has advantages of a sufficient adaptability, non-water reaction, convenient and fast construction, being economic, a high strength and a high durability. An expansive polymer material has an obvious compacting effect on soil, and is capable of increasing a friction force between a grout and a base; the water-proofing polymer material is an impermeable material for a steel rod body, and is of benefit to anti-corrosion and durability of the rod body; a solidifying time of the polymer material is short and no maintenance is needed in such a manner that construction periods are shortened.Type: GrantFiled: April 19, 2013Date of Patent: April 14, 2015Assignee: SAFEKEY Engineering Technology(Zhengzhou), Ltd.Inventors: Fuming Wang, Mingsheng Shi, Chengchao Guo, Hongliang Chen, Dongkai Zhao, Leiying He
-
Patent number: 8967916Abstract: A cable bolt includes a multi-strand cable segment constructed from steel wire strands, and a drive head. A compressible porous backer rod is placed along cable segment adjacent the drive head. A tubing portion provides a conduit for liquid grout injected under pressure into the bore hole. Tubing portion includes discharge holes that may be predrilled through the wall of the tubing portion. The holes provide a predetermined distribution path for the liquefied grout that is injected into the bore hole. Discharge holes may be evenly dispersed longitudinally along the wall, or distributed to provide a desired, unequal distribution of grout. Distribution holes may be larger at the top of the tubing, or may be distributed adjacent to the top of tubing portion to allow greater cross-sectional flow of grout from the tubing to compensate for factors that restrict grout flow nearer the top.Type: GrantFiled: May 7, 2012Date of Patent: March 3, 2015Assignee: Earth Support Services, Inc.Inventors: David A. Hussey, Brian Czartorski
-
Publication number: 20150043976Abstract: A strand (20) for a cable bolt (14) comprises a plurality of metallic elongated members (22, 24) twisted together. At least one of the elongated members has a corrosion resistant coating (54) and surface deformation, so as to improve the bodig efficiency and the anchorage of the strand.Type: ApplicationFiled: March 1, 2013Publication date: February 12, 2015Applicants: NV BEKAERT SA, MINOVA INTERNATIONAL LIMITEDInventors: Stijn Defossez, David Aspinwall, Setphen Tadolini, James Earl
-
Publication number: 20150016894Abstract: A setting tool for inserting an anchor rod into a borehole filled with a curable mass or filled with a cartridge containing a curable mass is disclosed. The setting tool includes a housing, which has a receptacle for the anchor rod, into which the anchor rod can be inserted in the longitudinal direction and in which the anchor rod can be fixed. At least one clamping element is tilted at an angle from the longitudinal axis of the receptacle and is supported in a guide in the receptacle in such a way that the clamping element can be moved from a receiving position, in which the anchor rod can be inserted into the receptacle in the longitudinal direction, to a clamping position, in which the anchor rod is fixed in the receptacle in the circumferential direction, by rotating the housing relative to the anchor rod.Type: ApplicationFiled: January 29, 2013Publication date: January 15, 2015Applicant: Hilti AktiengesellschaftInventor: Herbert Ginter
-
Publication number: 20140363239Abstract: An anchor rod is disclosed. The anchor rod includes an attachment region and an anchoring region which is insertable into a borehole and which has a profiled section. The profiled section interacts with a curable organic and/or inorganic mortar compound filled into the borehole. The profiled section includes a plurality of expansion sections disposed axially in a row which are conically shaped. For each of the plurality of expansion sections, a diameter of the expansion section increases in a direction toward a free front end of the anchor rod, a ratio of a distance of the expansion section to a mean borehole diameter is 0.40 to 0.60, a ratio of an outer diameter to a core diameter of the expansion section is 1.35 to 1.55, and a cone angle of the expansion section is 22.5° to 27.5°.Type: ApplicationFiled: July 10, 2012Publication date: December 11, 2014Applicant: Hilti AktiengesellschaftInventors: Josef Glogger, Bernhard Winkler
-
Patent number: 8899883Abstract: A mine roof support system includes an elongated anchor rod or tendon having a rigid non-deformable distalmost anchoring end portion, and one or more axially deformable portions which are configured to deform in the event load forces exceed a threshold force approximating the forces during a rock burst or rock dilation event. The rigid anchoring portion is provided with primary anchor members such as ribs, grooves, studs and the like. The primary anchor members are configured to reduce bar plasticity, and fixedly secure and retain the rigid portion in place in a drill hole. In the event rock forces exceed the threshold force, the plastically deformable portions elongate with the dilating rock to accommodate and absorb the rock forces.Type: GrantFiled: December 22, 2009Date of Patent: December 2, 2014Inventors: Denis Champaigne, Ming Cai
-
Publication number: 20140334885Abstract: An anchor fitted with a self-tapping thread and an anchor rod, whereby at least one axially oriented feed channel for a curable compound is arranged in the anchor rod. A head element on which the self-tapping thread is arranged is fastened to a first end of the anchor rod.Type: ApplicationFiled: October 17, 2012Publication date: November 13, 2014Inventor: Frank Schmidt
-
Patent number: 8876436Abstract: A rock bolt includes an elongate tubular body with an internal bore. A filler material is insertable into the internal bore at one end of the elongated tubular body. The end of the tubular body is then deformed thereby using the filler material to seal the end of the bore. The filler material may be a non-metallic material, such as a tube of plastic.Type: GrantFiled: December 6, 2012Date of Patent: November 4, 2014Assignee: RSC Mining (Pty) Ltd.Inventor: Johann Steyn
-
Publication number: 20140321924Abstract: A detachable bolt includes a bolt body being a round bar and having an inner end and an outer end; a periphery of the inner end being formed with at least one screw section with threads thereon and at least one circular section; each circular section having a smooth surface with a plurality of protrusions. The outer end of the bolt may be a structure like that of the inner end, or may have threads thereon, or may be smooth, or may be sleeved by a sleeve. In detaching process, other than the gluing material in the hole will break, the object to be retained and the retaining wall will not be destroyed. The bolt body can be removed from the object and the wall easily without great forces applied thereto. Furthermore, the wall and the object to be retained can be restored to the original outlook easily.Type: ApplicationFiled: April 25, 2013Publication date: October 30, 2014Inventor: Ku-Hsi Hu
-
Publication number: 20140308081Abstract: An anchorable mine support for anchoring in a borehole with resin or grout. The anchorable mine support comprises a tensionable elongate metal member and a sleeve disposed on at least a portion of the tensionable elongate metal member. The sleeve has a thickness of less than about 1 mm. A method of reducing frictional resistance between a tensionable elongated bolt and a hardened resin nut in a borehole formed in a face of a mine passage. The method reduces the frictional resistance between a tensionable elongated bolt and a hardened resin nut, thus improving the ability to tension a tensionable elongated bolt and stabilize a rock formation or structural body.Type: ApplicationFiled: April 3, 2014Publication date: October 16, 2014Applicant: DSI UNDERGROUND SYSTEMS, INC.Inventors: James Raymond CLINGAN, Phillip Edwin GRAMLICH, JR.
-
Patent number: 8857122Abstract: A port anchor system and method for anchoring and cementing adjacent and often separated leaves (layered structures) of masonry. The method and various embodiments have the capability of being used for anchoring, cleaning and flushing of old mortar, and injecting grout into internal masonry voids, thereby tying and re-cementing or cementing the masonry mass back together. Various embodiments of anchor systems are provided for performing the various methods, more particularly, some of the embodiments describe port anchors which are used to clean and flush the old mortar and then grout fill the void between adjacent masonry leaves while other embodiments are used to grout fill the void.Type: GrantFiled: June 14, 2012Date of Patent: October 14, 2014Inventor: John M. Wathne
-
Publication number: 20140270983Abstract: A sleeve and a concentric shaft having head at one end with a rectangular plate through with the shaft interposed between the head and the adjacent end of the sleeve. The plate initially is substantially V-shape and has the apex substantially parallel to a minor axis of the plate so that movement of the sleeve along said shaft towards the head deforms the plate from the V-shape into a substantially plainer configuration with the ends of said plate on a major axis of the plate extending laterally beyond the head. The present invention also embraces a method of fixing the anchor in a bore hole with the ends of the plate in an undercut in the bore hole and filling the bore hole with resin while venting air via a passage extending from adjacent to a closed end of the bore hole through a suitable cover.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: Case Innovations Inc.Inventor: Case Innovations Inc.
-
Publication number: 20140255107Abstract: A subsurface support is provided comprising a soil nail having an outer member and an inner member placed within the outer member. The soil nail includes features that maintain a uniform spaced relationship between the inner and outer members. The soil nail may be installed by drilling or launching through a launching device. The spaced relationship between the inner and outer members may be achieved by crimping the outer member, or by use of an insert installed between the inner and outer members. In other embodiments, the support is made of composite construction materials, and having a self-drilling capability. The soil nail has two primary members, namely, an outer threaded member, and an inner threaded member that is placed through the outer member The outer member is made from fiberglass, and a metallic drill bit is secured to a distal end of the soil nail. The inner member is preferably steel.Type: ApplicationFiled: May 23, 2014Publication date: September 11, 2014Applicant: R&B LEASING, LLCInventors: Colby Barrett, Timothy Allen Ruckman
-
Patent number: 8814476Abstract: The present invention concerns a method, a system, the use of the system and a reinforcement member for the direct detection of the presence of a cavity in a drill-hole intended for the reception of a reinforcement member. The method comprises the injection of a drill-hole with hardening grout 6, the introduction of a reinforcement member 7, 40 to introduce a pressurized medium 37 and the measurement of the change in pressure or the detection of a flow of medium, whereby the fall in pressure or the presence of a flow of medium indicates the presence of a cavity.Type: GrantFiled: May 5, 2010Date of Patent: August 26, 2014Assignee: Malmafälten ABInventors: Sture Åberg, Leif Gustafsson
-
Patent number: 8807877Abstract: In one aspect of the invention, an apparatus and related methods for installation in a borehole formed in a face of a mine passage comprises an elongated bolt including a spiral portion coated with a lubricity agent for positioning in the borehole; preferably, a fixing agent as well; and most preferably, a colored fixing agent. A hardened, stationary resin nut formed in only part of the borehole, preferably spaced from the distal end thereof, my receive the spiral portion of the bolt. Consequently, rotation of the spiral portion within the hardened resin nut serves to move the bolt within the borehole, such as for purposes of tensioning.Type: GrantFiled: September 21, 2009Date of Patent: August 19, 2014Assignee: Rhino Technologies LLCInventor: William G. Fox
-
Patent number: 8801337Abstract: A method for attaching a plate to an interior of an underground excavation, the method comprising: placing a first surface of the plate adjacent to the interior of the excavation, the plate having at least one through a passageway disposed within the plate; forming a mounting hole within the excavation in alignment with the passageway; inserting a bolt from a second surface of the plate opposite the first surface through the passageway and into the mounting hole; the bolt having a dome portion being integrally attached to a washer portion, such that the dome portion extends in a convex manner away from the first side of the washer portion; and a driver connected to the dome portion; driving the bolt into through the passageway and the mounting hole by means of the driver; and securing the bolt to the mounting hole disposed within the excavation via an anchorage device, adhesive or grout.Type: GrantFiled: March 20, 2013Date of Patent: August 12, 2014Assignee: DSI Underground Systems, Inc.Inventors: Matthew S. Slatter, Roland C. Walker
-
Patent number: 8776479Abstract: An anchoring device including an anchoring element suitable for being anchored an object of construction material with the aid of mechanical vibrations. The anchoring element includes a thermoplastic material and a tool. The thermoplastic material forms at least a part of a radially outer surface of the anchoring element, and the tool has a proximal portion and a broadening portion distally of the proximal portion. The broadening portion has an outer second cross-section, the second cross section being larger than the first cross section but being adapted to the first cross section so that the tool can be moved with respect to the anchoring element while the broadening portion is in the axially-extending opening and locally expands the anchoring element while thermoplastic material of the anchoring element that surrounds the broadening portion is in a solid state.Type: GrantFiled: November 20, 2013Date of Patent: July 15, 2014Assignee: Woodwelding AGInventors: Marcel Aeschlimann, Laurent Torriani, Mario Lehmann, Jorg Mayer
-
Patent number: 8757934Abstract: 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: GrantFiled: August 10, 2011Date of Patent: June 24, 2014Assignee: FCI Holdings Delaware, Inc.Inventors: James D. Hall, Fred Stafford, John G. Oldsen, Dakota Faulkner
-
Patent number: 8753041Abstract: The invention provides an injection, sealing, valving and passageway system for use with hollow rock bolts and hollow injection bars used in mining, civil engineering, tunneling and construction including use with hollow self drilling rock bolts. The invention comprises a plurality of passageways with one or more one way flow valves along the passageways. The invention enables one or more fluids to be pumped into a hollow rock bolt or other hollow elongate member either sequentially or simultaneously without cross contamination of fluids in another passageway or back flow of fluids along the wrong passageway. The invention is typically used to install self drilling rock bolts whereby a drilling fluid is initially pumped through the hollow bolt during the drilling cycle, and then a two part chemical resin or cement grout is pumped through the hollow bolt to anchor the bolt in the borehole.Type: GrantFiled: September 18, 2009Date of Patent: June 17, 2014Inventor: Peter Andrew Gray