Class / Patent application number | Description | Number of patent applications / Date published |
405288000 | Roof support | 86 |
20080240868 | Mine support having a linearly moveable and/or pivoting end plate - A mine support yieldable prop includes a threaded shaft rotatably mounted in an end of the prop to move into and out of the prop end to move a bearing plate toward or away from a mine roof, and/or a bearing plate pivotally mounted to the end of the prop to level the prop with uneven mine roofs. | 10-02-2008 |
20080298903 | Reinforcement Liner Installation Mold For The Corrugated Steel Plate Structure - The present invention relates to a reinforcement liner installation mold for a corrugated steel plate structure. The reinforcement liner installation mold for the corrugated steel plate structure according to the present invention is mounted on one surface of a corrugated steel plate and forms a reinforcement liner when concrete is placed inside the mold the placed concrete cures. The mold includes a plurality of unit mold panels, each having a rectangular front panel part and two side panel parts integrally formed along the opposite lengthwise edges of the front panel part. The plurality of unit mold panels is sequentially fastened to the corrugated steel plate by a plurality of anchor bolts and a plurality of nuts along the outer surface of the corrugated steel plate in a lengthwise direction. | 12-04-2008 |
20090003940 | System And Method For Mine Roof Counter Bore And Cable Bolt Head Securement Therein - A mine roof support includes a plate having a raised portion with an opening, and a mine and roof bolt, e.g. a barrel having a drive end and an opposite second end, and wedge assembly. The plate mates with a recess in a mine roof. In one embodiment, the second end of the barrel extends through the opening in the dome into a bore hole in the mine roof. In another embodiment, a second end of the mine bolt is contoured to match and fill the inner contour of the dome. A drill bit tool used to shape the recess includes a first bit, a second bit, and a third bit between the first and second bits to drill a bore hole, enlarge the end of the bore hole to receive the second end of the mine bolt, and to drill the recess. | 01-01-2009 |
20090035072 | SHIELD SUPPORT - A shield support for underground mining has a slider and a roof bar between which a ram is arranged, with an inclination detector being provided with which the inclination of the roof bar can be measured. | 02-05-2009 |
20090180840 | Dome headed roof bolt - A new bolt head design is disclosed and claimed. The bolt head has a radius between the shaft and the first side of a washer which spreads the shaft load more evenly to the washer. A concave dome is located between the second side of the washer and the driver of the head. These elements more evenly distribute the load, increase the bolt head strength and help prevent the washer, shaft and washer driver interfaces from failing when the bolt is loaded either in a linear or non-linear fashion. | 07-16-2009 |
20100054870 | MINE ROOF AND RIB SUPPORT WITH REINFORCED CHANNEL - A mine roof and rib support can be a support member having a roof support arm and a rib support arm, wherein the roof support arm is provided at an angle to the rib support arm. An aperture for a roof bolt is provided through the support member adjacent an intersection of the roof support arm and the rib support arm. A bearing plate having an upper edge and a lower edge, and a through-hole provided therebetween, can be provided wherein the upper and lower edges are positioned in abutment with the roof and rib support arms, respectively, to simultaneously apply force to each arm when a roof bolt is installed through each of the bearing plate and the support member. A flange can be provided at a distal end of one or both of the roof and rib support arms, each flange projecting toward the mine roof or rib. | 03-04-2010 |
20100196103 | STACKABLE MINE ROCK SHIELDS - Disclosed is a stackable mine rock shield. The mine rock shield includes a body having a first surface and a second surface, an aperture positioned at about the center of the body for receiving a fastening mechanism, a continuous protuberance extending outwardly from the first surface of the periphery of the body and defining a recess wherein the continuous protuberance intersects the first surface of the body to form an angle of intersection with such first surface, and an edge portion at the perimeter of the body. The mine rock shield may further include a rigid notch at the periphery of the body. | 08-05-2010 |
20100221073 | Engineered composite wooden crib for use as a mine support - This invention provides improvements through 1) a composite, engineered wooden support element for construction of cribs in mines to provide support between two surfaces, 2) use of support elements to construct cribs, and 3) a wedge system to provide substantial sustained preload on a crib. The wooden support element consists of a center elongate element wherein the wood grain runs transversely to the crib element loading direction, and at least two outer plate elements wherein the wood grain runs axially with the crib element loading direction. Each outer plate element is attached to a surface of the center elongate element using fastening means and the outer plate element wood grain direction is aligned transversely to the grain direction in the center elongate element. The crib structure may be constructed by superimposing only these support elements in 2×2 layers or in conjunction with solid prismatic wooden elements. A wooden wedge system with relatively low angle surface and with wood grain running axially is utilized to apply vertical preload. Due to high stiffness of the wedge in the axial direction, a substantial vertical preload can be applied and sustained to make cribbing structure a more efficient load carrying structure. The wooden support elements are lightweight, have controllable higher stiffness and load carrying capacity than current cribs, engineered yielding characteristics and allow much lower resistance to air flow in underground mine roadways. | 09-02-2010 |
20100266349 | Impact Resistant Lagging, Method For Designing Impact Resistant Lagging, and Apparatus for Testing Impact Resistant Lagging - A steel set assembly includes a first pair of legs and a second pair of legs with the first pair of legs being spaced from and positioned opposite the second pair of legs. First and second beams are provided with the first beam being secured to one leg of the first pair of legs and one leg of the second pair of legs. The second beam is secured to the other leg of the first pair of legs and the other leg of the second pair of legs. A panel is secured to the first and second beams and includes a base having a top surface and a bottom surface, a block having a top surface and a bottom surface, and a pad. The block is secured to the base and the pad is positioned between the top surface of the base and the bottom surface of the block. | 10-21-2010 |
20100284752 | GROUT PACK ASSEMBLY - The invention provides a grout pack assembly having a plurality of elongate elements shaped to extend about a grout pack and which are characterized in that they are configured to control circumferential expansion of the grout pack beyond the expansion permitted through material yield of the elements. | 11-11-2010 |
20100310325 | Truss Shoe with Wedge Retaining Sleeve - 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. | 12-09-2010 |
20110097158 | SHIELD SUPPORT ASSEMBLY FOR UNDERGROUND MINING AND SUPPORTING SURFACE ELEMENT THEREFOR - A shield support assembly for underground mining includes a shield canopy and at least one floor runner as supporting surface elements. The shield canopy and at least one runner are connected in an articulated manner and can be pressed against rock at least one hydraulic cylinder which is supported in bearing pans on the shield canopy and floor runner. Each surface supporting element includes a welded construction of welded-together components. In order to be able to support higher forces without increasing the overall weight, at least one of the supporting surface elements includes at least one hollow metal box profile filled with a solid as a component of the welded construction. | 04-28-2011 |
20110164929 | Lite mine roof support crib and method - A mine roof support crib. The crib includes a plurality of chocks that are connected together through notches in the chocks to form at least three planes and able to support at least five tons of load. Each notch has at least one edge. A method of forming a mine roof support crib. A method of forming a chock for a mine roof crib to support a mine roof. | 07-07-2011 |
20110250024 | Mine Roof and Rib Support with Vertical Bolt - A mine roof and rib support device comprising a support member, a roof support arm, a rib support arm, a bearing plate and a mine roof bolt. The roof support arm is provided at an angle to the rib support arm and comprises at least one aperture therethrough. The bearing plate comprises an upper edge and a lower edge and a through-hole defined therethrough. The upper and lower edges of the bearing plate can be positioned in abutment with the roof and rib support arms, respectively, with the through-hole being aligned with the aperture through the support member. The mine roof bolt extends through the through-hole of the bearing plate and the aperture of the roof support arm, thereby pressing the bearing plate against the support member. The upper edge exerts a force against the roof support arm and the lower edge exerts a force against the rib support arm. | 10-13-2011 |
20120034037 | Curved Mine Roof and Rib Support - A mine roof and rib support includes a curved support member comprising a roof support arm and a rib support arm with a curved junction portion between the roof support arm and the rib support arm and an aperture defined through the support member for receiving a mine roof bolt. A bearing plate having an upper edge and a lower edge, and a through-hole provided therebetween can be provided wherein the upper and lower edges are positioned in abutment with the roof and rib support arms, respectively. Also, a mine roof and rib support may include a curved support member comprising a roof support arm and a rib support arm and a curved junction portion between the roof and rib support arms, wherein the roof support arm defines the aperture for receiving a mine roof bolt that may extend substantially vertically through the through-hole and the roof support arm aperture. | 02-09-2012 |
20120163926 | GOB SHIELD FOR SHIELD SUPPORT AND METHOD FOR THE PRODUCTION THEREOF - A gob shield for a shield support and a method for producing such a gob shield. The gob shield having a cover plate, two cap connecting joints for connecting the gob shield to a roof cap, and side plate pairs having respectively two side plates with bolt receptacles for the fastening of links of a link mechanism to the gob shield. In order to simplify the production of the gob shield, each cap connecting joint is a component part of a separately producible elongate assembly, which, by a rear end, can be welded in place in the interspace between the side plates of a side plate pair before this master assembly comprising assembly and side plate pair is welded to the cover plate. | 06-28-2012 |
20120230775 | SHIELD CANOPY FOR A SHIELD-TYPE SUPPORT - A shield canopy for a shield-type support for underground mining having a canopy plate and a supporting structure being welded on below the canopy plate and having a plurality of longitudinal spars which extend from a rear canopy region up to a front canopy region. At least two of the longitudinal spars having section struts which are provided with a top section flange and a web running perpendicularly to the top section flange, and the canopy plate and the section struts are angled upwards in the front canopy region. | 09-13-2012 |
20120263546 | PEDESTAL SUPPORT FOR MINE PROP - A pedestal support for a mine prop. The pedestal support includes a collar to dispose a mine prop at least partially therein and a yielding member extending from the collar. The yielding member includes a wall having a top edge and a bottom edge and having a thickness that tapers from the top edge to the bottom edge and that flares from the top edge to the bottom edge. | 10-18-2012 |
20120282041 | Yieldable cambered arch support assembly - An arch support assembly for withstanding the effects of rock burst in underground mines, which includes a spaced aligned series of arch supports, each support having a spaced pair of upright side support columns with an upwardly cambered cap beam arch having opposite ends therefore transversely meeting and secured respectively to the upper ends of the side columns at an obtuse angle. The arch supports are rigidly tied together and provided with a roof supported by the cap beams to provide in combination an arch support assembly. A yielding connection is provided between the upright side columns and the cap beam ends whereby the cambered cap beams are permitted to flex downwardly under an impact load on the roof and the cap beam ends are thereby permitted to extend transversely a controlled limited amount relative to the upright side columns under a yieldable interference friction securement | 11-08-2012 |
20130017022 | UNDERGROUND MINING RIB SUPPORT SYSTEM AND METHOD - A rib support system, a rib support device, a rib support method, a method for manufacturing a rib support device, and a computer readable medium are provided as described herein. The rib support device is configured to support a mine or tunnel rib (or wall) or roof to prevent spalling, and to provide safety and long term protection of tunnel (or open) areas. The rib support device may be made from a high density polyethylene (HDPE) material, or the like, that is resistant to corrosion, has superior overall performance and strength, has few (or no) sharp edges, is light weight, and is easy to handle. | 01-17-2013 |
20130121774 | Crib Bag - A crib bag is disclosed that includes a one-way fill valve, such as a duck bill valve, and a vent positioned at the top of the crib bag to allow venting of air from the crib bag when the bag is filled with cement compound and as the cement compound solidifies. When the mining crib bag is filled with cement compound, the one-way fill valve and the top vent prevent spillovers and associated hazards. | 05-16-2013 |
20130129426 | GROUT PACK RESTRAINING ENVELOPE - A grout pack [ | 05-23-2013 |
20130136545 | Nested Mine Roof Supports - This invention is directed to a mine roof support set including a plurality of nested containers. Each container in the set has a progressively smaller cross-sectional dimension to allow the containers to be nested one within the other. The plurality of nested containers allows more efficient transportation of the mine roof support set to a mine site. The containers can be separated at the mine site and filled with a load-bearing material. The containers filled with the load-bearing material are placed with their longitudinal axis between a mine roof and a mine floor. | 05-30-2013 |
20130183105 | Truss Shoe For Use With A Threaded Rod - A truss shoe for a roof support system includes a bolt receiving section, an intermediate section, and a housing having a threaded rod engaging section. The threaded rod engaging 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. The passageway has a threaded portion extending from the first end of the passageway toward the second end. A stop member is positioned spaced from the first open end of the passageway. With this arrangement, the end of the threaded rod passes through the space between the first open end of the passageway and the stop member into engagement with the stop member, whereby all of the threads of the threaded portion of the passageway are in engagement with the threads of the threaded bar. | 07-18-2013 |
20130236252 | DOME HEADED ROOF BOLT - 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. | 09-12-2013 |
20130336727 | YIELDABLE MINE ROOF SUPPORT - A mine roof support includes a rigid body having a first end and a second end and defining an interior space, a cementitious material positioned within the interior space of the body and a plurality of support members extending circumferentially around the body and engaging an outer surface of the body. A method includes providing a mine roof support comprising a rigid body having a first end and a second end, a cementitious material positioned within an interior space defined by the body, and a support member extending circumferentially around the body and engaging an outer surface of the body. The method also includes selecting a load capacity and elongation value of the support member to provide controlled yieldable confinement of the mine roof support during loading of the mine roof support. | 12-19-2013 |
20140133923 | Mine Roof Support Member and Method for Constructing Improved Mine Roof Support Columns - A support member ( | 05-15-2014 |
20140348596 | NESTED MINE ROOF SUPPORTS - This invention is directed to a means for transporting a mine roof support set including a plurality of nested containers. Each container in the set has a progressively smaller cross-sectional dimension, or a tapered, frusto-conical shape, to allow the containers to be nested one within the other. The plurality of nested containers allows more efficient transportation of the mine roof support set to a mine site. The containers can be separated at the mine site and filled with a load-bearing material. The containers filled with the load-bearing material are then placed with their longitudinal axis between a mine roof and a mine floor. | 11-27-2014 |
20150043978 | ROOF BOLTER | 02-12-2015 |
20150147122 | Yieldable Prop with Yieldable Insert - A mine prop includes a first pipe having a first end and a second end, a second pipe having a first end and a second end, and a yield member secured to the second pipe. The second pipe is slidably received in the first pipe. The yield member is configured to yield before the first and second pipes when the mine prop is placed under a predetermined load. | 05-28-2015 |
20150308269 | Mine roof bolt system - This new system can utilize a threaded bolt head on one end of a roof bolt and an anchoring device on the other end of the bolt. The roof bolt is designed in such a manner to allow the bolt head to drive the bolt for anchoring purposes and to allow the bolt head to also serve as the attachment mechanism for ancillary appendages. This system can be utilized as the primary roof bolting system, or, as an ancillary system in conjunction with existing primary roof bolts. | 10-29-2015 |
20160061032 | VENTILATED MINE ROOF SUPPORT - A longitudinally yieldable support for underground roof support includes an elongate outer shell filled with a solid compressible filler material. At least one air ventilation tube extends between opposite sides of the support to allow a flow of air through the support as the support yields. | 03-03-2016 |
405289000 | Inflatable | 7 |
20100135732 | VERSATILE GROUT BAG TYPE OF UNDERGROUND SUPPORT - A support assembly ( | 06-03-2010 |
20100247249 | MINE SUPPORT GROUT BAGS AND GROUT PACKS - A grout bag assembly ( | 09-30-2010 |
20110222970 | MINE SUPPORT GROUT PACKS - A grout pack is provided comprising a grout bag and a restraining envelope encircling the grout bag. The restraining envelope includes multiple elongate tension elements made of a multitude of fibres twisted, braided or woven to form confinement tension elements for operatively supporting the grout bag. The restraining envelope may include an inner mesh layer positioned on the inside of the elongate tension elements which may assume the form of containment rings encircling the grout bag at spaced positions up the height of the grout pack. Alternatively, or in addition, at least some elongate tension elements may extend in generally helical directions of opposite hand in the installed condition of the grout pack. The tension element may assume the form of a rope or a length of webbing. The ends of the rope or webbing may be joined in a manner providing for controlled slipping of overlapping ends thereof. | 09-15-2011 |
20110262231 | Pumpable Support with Cladding - A support for use in mines and other underground workings is provided comprising a flexible inflatable bag configured for receiving a pumpable load-bearing material. A reinforcing material is provided for supporting the bag when the bag is filled with the load-bearing material. The reinforcing material can include reinforcing plates, rings, bands or barrels positioned about the outer periphery of the bag. Alternatively, the support can be formed from a plurality of stackable barrels that are filled with load-bearing material but without the inflatable bag. The barrels can include internal reinforcing or cladding material at spaced locations along the barrels to define controlled deflection zones. According to another design, the support can be designed to be extensible. The support is inexpensive to transport, can be erected on-site and has a reinforced structure with residual yield strength. A method for supporting a mine or other underground workings is disclosed. | 10-27-2011 |
20120269585 | Pumpable Crib - A pumpable crib bag assembly includes a containment bag having a body and a supporting member. The containment bag is configured to contain a cementitious material therein and has a first end, a second end, and an outer surface. The pumpable crib bag assembly further includes a reinforcing layer positioned adjacent to the outer surface of the containment bag. | 10-25-2012 |
20130336728 | PRELOADABLE SUPPORT - The invention relates to a load support ( | 12-19-2013 |
20140363241 | Pumpable Crib - A pumpable crib bag assembly includes a containment bag having a body and a supporting member. The containment bag is configured to contain a cementitious material therein and has a first end, a second end, and an outer surface. The pumpable crib bag assembly further includes a reinforcing layer positioned adjacent to the outer surface of the containment bag. | 12-11-2014 |
405290000 | Jack | 22 |
20090202310 | SUPPORT FOR UNDERGROUND MINING AND TUNNEL CONSTRUCTION - A hydraulic support for underground mining and tunnel construction includes an outer tube to form an upper prop and an inner tube which forms a lower prop and is received in the outer tube to define a pressure chamber. A footpiece is secured to a lower end of the inner tube. Provided on the upper end of the inner tube is a piston which is sealingly guided along the outer tube as pressure fluid is admitted into the upper prop. Disposed inside the lower prop at a location below the piston is a valve block for introducing pressure fluid into the pressure chamber, with a pressure tube connecting the valve block with the piston to thereby define a constant distance of the valve block to the footpiece. | 08-13-2009 |
20090257831 | Suspending Hydraulic Pillar - A suspending hydraulic pillar includes an oil cylinder, a movable prop, a handle-valve body, a reset spring, a top cover, a bottom seat, a three-way valve, a position-limiting steel wire, and a guide ring. The handle-valve body is provided between a port of the oil cylinder port and the moveable prop. Position-limiting steel wire, a guiding ring, and an oil inlet is located on a lower part of the moveable prop. The three-way valve is provided in the handle-valve body. A dust-prevention ring and a sealing ring are provided between the handle-valve body, the mvoable prop, and the oil cylinder. The handle-valve body is fixed on the oil cylinder by means of a connecting steel wire. The handle-valve body does not move up and down as the movable prop telescopically extends or contracts. The suspending hydraulic has good stability, high strength and supporting force, good sealing, and high anti-erosive capability. | 10-15-2009 |
20100119311 | HYDRAULIC PROP COMPRISING THIN-WALLED EXTERIOR AND INTERIOR PIPES - A hydraulic prop | 05-13-2010 |
20110052334 | Apparatus and method for supporting a mine rib - A mine rib support for bracing a vertical mine rib disposed between a mine floor and a mine roof. The support includes an elongated upright and continuous telescopically expandable support having a preset curvature. The member is longitudinally expanded for engaging the mine floor and the mine roof under compression with the curvature facing towards the mine rib. A support plate is laterally extended from the support member into compression engagement with the mine rib, thereby prestressing the support for support of the mine rib. | 03-03-2011 |
20120027529 | Mine Support Having a Linearly Moveable and/or Pivoting End Plate - A mine support yieldable prop includes a threaded shaft rotatably mounted in an end of the prop to move into and out of the prop end to move a bearing plate toward or away from a mine roof, and/or a bearing plate pivotally mounted to the end of the prop to level the prop with uneven mine roofs. | 02-02-2012 |
20120148350 | Mine prop jack and method of prestressing a mine prop - A telescoping mine prop is prestressed by engaging the prop with a jack and thereby telescopically expanding the prop against opposing surfaces of the mine with the jack. Thereafter the prop is locked in position and the jack is disengaged from the prop for use with the expansion of another prop, thereby leaving the mine prop in a prestressed condition. | 06-14-2012 |
20120213598 | ROOF SUPPORT SHEET HANDLING FOR UNDERGROUND MINES - Systems for installing roof support sheets on a mine roof. One system includes a support frame, a lifting system, and a feeding system. The support frame holds a plurality of roof support sheets. The lifting system lifts at least one of the sheets from the support frame. The feeding system obtains the at least one sheet from the lifting system and feeds the at least one sheet toward an installation apparatus for installation on the mine roof. The lifting system includes a shoe and at least one arm for moving the shoe to engage and move the at least one sheet. The feeding system includes a drive assembly and a support. The drive assembly engages and moves the at least one sheet toward the installation apparatus, and the support supports the at least one sheet moved by the drive assembly. | 08-23-2012 |
20130039704 | DEVICE FOR ROOF SUPPORT OF UNDERGROUND MINE/TUNNEL - The present invention provides a device useful for supporting underground mine/tunnels. The device continuously monitors the roof load coming over the canopy and correspondingly yielding/convergence indicated by the pointer on graduate scale. The roof load coming on the canopy ( | 02-14-2013 |
20130108376 | Yieldable support prop and method | 05-02-2013 |
20140050538 | PROP - A prop which includes first and second telescopically engaged tubular members, wherein at least one member is internally pressurized with water and wherein yielding is controlled by means of a friction ring acting between opposing surfaces of the two members and by a release valve which controls the pressure of the water. | 02-20-2014 |
20140064859 | TELESCOPIC MINE ROOF SUPPORT - A longitudinally yieldable support for underground roof support includes a first support section with a first elongate outer shell filled with a solid compressible filler material and a second support section filled with a second solid compressible filler material with a second elongate outer shell extending above the first elongate outer shell. The second support section has density that is greater than a density of the first solid compressible filler material. A pair of attachment members are coupled to the second elongate outer shell and are configured for lifting the second elongate outer shell relative to the first elongate outer shell and for securing the second elongate outer shell relative to the first elongate outer shell once lifted. | 03-06-2014 |
20140072374 | SUPPORT PROP - A support prop which includes telescopically interengaged inner and outer tubular members, a one-way valve for introducing pressurized liquid into a volume inside at least one of the members, a pressure relief valve for releasing liquid from the volume when the liquid pressure in the volume exceeds a predetermined value and a number of wedges which are located between opposing surfaces of the tubular members and which are engaged with one member and which deform the inner member when telescopic yielding action of the members takes place. | 03-13-2014 |
20140286713 | PROP HEAD BEARING DEVICE FOR SHIELD SUPPORTS - A prop head bearing device used for a shield support and to receive a prop head includes a prop head bearing main body with a prop head receiving portion, a flange adjacent to the prop head receiving portion and a flange bore, and a receiving portion adjacent to the flange and remote from the prop head receiving portion. The prop head bearing device may also include a securing element including a securing element bore adapted in shape to the receiving portion, such that in the mounted state the securing element is locked with respect to the bore direction of the flange bore and that the securing element bore is aligned to the flange bore. | 09-25-2014 |
20150086280 | ROOF SUPPORT SHEET HANDLING FOR UNDERGROUND MINES - Systems for installing roof support sheets on a mine roof. One system includes a support frame, a lifting system, and a feeding system. The support frame holds a plurality of roof support sheets. The lifting system lifts at least one of the sheets from the support frame. The feeding system obtains the at least one sheet from the lifting system and feeds the at least one sheet toward an installation apparatus for installation on the mine roof. The lifting system includes a shoe and at least one arm for moving the shoe to engage and move the at least one sheet. The feeding system includes a drive assembly and a support. The drive assembly engages and moves the at least one sheet toward the installation apparatus, and the support supports the at least one sheet moved by the drive assembly. | 03-26-2015 |
20150300169 | MINING ROOF SUPPORT SYSTEM - A support system for a mining roof includes a base, a cylinder coupled to the base and configured to extend and retract, a pivot mechanism coupled to the cylinder, a roof support beam coupled to the pivot mechanism and configured to contact a surface of the mining roof, wherein the roof support beam and the pivot mechanism are raised relative to the base when the cylinder is extended and lowered relative to the base when the cylinder is retracted, and a support structure coupled to the base on a first end and coupled to the pivot mechanism on a second end, the support structure being configured to limit movement of the roof support beam about an axis provided by the cylinder. | 10-22-2015 |
405291000 | Mobile | 7 |
20090191011 | SUPPORTING DEVICE FOR AN ADVANCE WORKING OR WINNING MACHINE - In a supporting device ( | 07-30-2009 |
20130149044 | Prop for Mining, Construction and the Like - A prop, for example for supporting the roof of an underground mine, is provided in the form of a vessel. The vessel includes a base having a bottom and one or more sides. A cover, including a top and one or more sides is provided. The top includes a space for accommodating a roof bolt when installed in a mine. Sides of the cover and of the base overlap each other to a maximal extent in a collapsed configuration. A port is formed in the one or more sides for filling the vessel with material when the sides of the cover and of the base overlap each other to a minimal extent in an extended configuration. Consequently the prop is able to go from a collapsed configuration for transportation or storage, to an extended configuration for supporting the roof of the mine. The top of the vessel may comprise a flexible envelope fast with the one or more sides of the cover for receiving the filling, in order to present a deformable upper surface for bearing an uneven load. | 06-13-2013 |
20160153278 | TEMPORARY ROOF SUPPORT SYSTEM | 06-02-2016 |
405293000 | With canopy extension | 1 |
405294000 | Telescoping | 1 |
20160102552 | TEMPORARY ROOF SUPPORT SYSTEM WITH ANTI-ROTATION FEATURE - A temporary roof support system with an anti-rotation feature is provided. The temporary roof support system includes a base, a multistage hydraulic cylinder, a multistage telescopic cover assembly and a locking tube assembly. The multistage telescopic cover assembly encompasses the multistage hydraulic cylinder, and includes a first plurality of cylinders of successively differing diameters disposed coaxially. The locking, tube assembly includes a second plurality of cylinders disposed coaxially and of successively differing diameters including an outermost cylinder and an innermost cylinder. The second pivot end of the locking tube assembly is coupled to the crossbar and the first pivot end of the locking tube assembly is coupled to the base, and a length of the locking tube assembly is parallel to the vertical axis. | 04-14-2016 |
405296000 | With rubble shield | 1 |
20110142551 | SHIELD CAP FOR A SHIELD-TYPE MINING SUPPORT - A shield cap for a shield-type support for underground mining includes a cap plate, with reception devices for the connection of hydraulic cylinder heads to the shield cap, and a supporting structure welded below the cap plate and having a plurality of longitudinal spars. At least two of the longitudinal spars include substantially I-profile struts having an upper profile chord, a lower profile chord and a middle chord running perpendicularly to the two profile chords. The distance between the upper and the lower profile chord decreases at least over a part length of each strut. | 06-16-2011 |
405302000 | Control system | 2 |
20120170981 | HYDRAULIC CIRCUIT FOR LONGWALL SUPPORT - A hydraulic circuit for longwall support for use in underground mining for supporting a longwall by means of a plurality of support shields comprises in the annular piston line of each cylinder/piston unit a pressure sensor. Said pressure sensor upon reaching a predetermined maximum pressure activates a pressure deviation signal, which causes the entire longwall to be depressurized by means of a longwall shut-off valve. The pressure deviation signal is blocked for one of the hydraulic valves against each triggering signal. | 07-05-2012 |
20140369769 | SYSTEM AND METHOD FOR ENABLING MACHINE MOVEMENT - A system for enabling movement of a machine is provided. The system includes a support member provided on the machine. The support member is configured to be in a raised position or a lowered position relative to a frame of the machine. The system also includes an actuation module configured to selectively enable the movement of the machine. The system further includes an enabler valve coupled to the actuation module and the support member. The enabler valve is configured to selectively send a pilot signal to the actuation module based on the position of the support member. | 12-18-2014 |
405302100 | Subterranean roof plate | 11 |
20090180841 | Low Profile Mine Roof Support - 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. | 07-16-2009 |
20090245944 | LOW PROFILE MINE ROOF SUPPORT - 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. | 10-01-2009 |
20090285641 | Mine roof and rib support device - A mine roof and rib support can be a support member having a roof support arm and a rib support arm, wherein the roof support arm is provided at an angle to the rib support arm. An aperture for a roof bolt is provided through the support member adjacent an intersection of the roof support arm and the rib support arm. A bearing plate having an upper edge and a lower edge, and a through-hole provided therebetween, can be provided wherein the upper and lower edges are positioned in abutment with the roof and rib support arms, respectively, to simultaneously apply force to each arm when a roof bolt is installed through each of the bearing plate and the support member. A flange can be provided at a distal end of one or both of the roof and rib support arms, each flange projecting toward the mine roof or rib. | 11-19-2009 |
20100092250 | DOME MINE ROOF PLATE - A roof plate having a planar peripheral portion surrounding a dome. The dome portion defines an opening formed in a central portion therein and a tubular wall. | 04-15-2010 |
20120082515 | Roof and Rib Support Having Reverse C-Channel - A mine roof and rib support may include a support member having a roof support arm provided at an angle to a rib support arm, the roof support arm defining an aperture for receiving a mine roof bolt, and wherein the support member defines a channel having an opened side surface and two legs extending from the opened side surface to contact the mine roof and the mine rib. A method of supporting a rock formation may include positioning a support member having a roof support arm provided at an angle to a rib support arm, wherein the roof support arm defines an aperture for receiving a mine roof bolt and a channel having an opened side surface and two legs extending from the opened side surface to contact the mine roof surface and the mine rib surface extending a mine roof bolt through the roof support arm aperture. | 04-05-2012 |
20130149045 | STACKABLE MINE ROCK SHIELDS - A stackable mine rock shield is disclosed. The mine rock shield includes a body having a first surface and a second surface, an aperture positioned at about the center of the body for receiving a fastening mechanism, a continuous protuberance extending outwardly from the first surface of the periphery of the body and defining a recess wherein the continuous protuberance intersects the first surface of the body to form an angle of intersection with such first surface, and an edge portion at the perimeter of the body. The mine rock shield may further include a rigid notch at the periphery of the body. | 06-13-2013 |
20140178133 | Oval Pan and Pan System for Rib and Roof Surface Control in Subterranean Excavation Applications | 06-26-2014 |
20150056023 | MINE ROOF AND RIB SUPPORT - A mine roof and rib support includes a support member comprising a roof support arm and a rib support arm, the roof support arm provided at an angle to the rib support arm, wherein the roof support arm defines an aperture for receiving a mine roof bolt; a bearing plate defining a through-hole, the bearing plate being positioned on the surface of the roof support arm, wherein the bearing plate through-hole is operatively aligned with the roof support arm aperture; and a mine roof bolt extending angularly through the through-hole of the bearing plate and the roof support arm aperture, the mine roof bolt being configured to compress the bearing plate against the support member. The bearing plate is positioned on the surface of the roof support arm away from the angled junction of the roof support arm and the rib support arm. | 02-26-2015 |
20150345293 | SUPPORT CHANNEL - Devices, systems, and methods for securing a wall are disclosed herein. A wall can be secured by attaching a support system to the wall. The support system can include a channel support, an affixation plate, and one or several securement features. The channel support can include a bearing surface that is divided into two portions by a rigidity structure. The rigidity structure can include two rigidity members that together form an M shape. The bearing surface of the channel support can be held against the wall by the affixation plate and the one or several securement features. | 12-03-2015 |
20160017709 | Anti-Friction Washer System - Included is an anti-friction washer system comprising two steel washers coated with a zinc coating that is at least 0.0002 inch thick, the two washers adhered to one another by an adhesive having a melting temperature of 300° F. or less. Also included is a mine roof bolt system comprising: a bolt having a bolt head; a bearing plate; and the above-described anti-friction washer system located between the bearing plate and the bolt head. Also included is a method of manufacturing an anti-friction washer system including providing two zinc-coated washers, depositing a melted thermoplastic adhesive in a plurality of locations circumferentially around one surface of one of the washers, placing the other washer on top of the adhesive, applying pressure to the washers, and cooling the bonded washers. | 01-21-2016 |
20160146007 | SYSTEM FOR MOUNTING CROSSBAR OF TEMPORARY ROOF SUPPORT SYSTEM - A system for mounting a crossbar of a temporary roof support system having a multistage telescopic cover assembly includes a first assembly coupled to crossbar and a second assembly coupled to multistage telescopic cover assembly. The first assembly includes a first plate, a first hollow cylindrical structure, and a first pin coaxially aligned with the first hollow cylindrical structure. The first hollow cylindrical structure includes at least one first hole, and at least one slot. The second assembly includes second plate, second hollow cylindrical structure, and pin hole coaxially aligned with second hollow cylindrical structure, and adapted to accommodate first pin. The second hollow cylindrical structure having at least one second hole, and at least one third hole. An outer diameter of first hollow cylindrical structure is less than inner diameter of second hollow cylindrical structure. The system includes at least one second pin and at least one third pin. | 05-26-2016 |
405302200 | Cable or strap support | 11 |
20080205997 | Apparatus for positioning anchor bolts and method of using same - 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. | 08-28-2008 |
20080298904 | Mine roof cable bolt, coupler and method - 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. | 12-04-2008 |
20090067932 | Re-tensionable cable bolt apparatus and related method - 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. | 03-12-2009 |
20090317197 | Tension Assembly - A tensioning assembly | 12-24-2009 |
20110085861 | Grouting device - 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. | 04-14-2011 |
20110311319 | LOW PROFILE CABLE BOLT HEADERS - 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. | 12-22-2011 |
20120034038 | Splice Tube with Wedge Retaining Caps - 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. | 02-09-2012 |
20120251245 | Low Profile Cable Bolt Heads - 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. | 10-04-2012 |
20130149046 | Apparatus and Method for Re-tensioning a Loose Roof Plate in an Underground Mine - 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. | 06-13-2013 |
20140119840 | Manufacture of Cable Bolts - 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. | 05-01-2014 |
20150300168 | METHOD AND SYSTEM OF COAL MINE ROOF STABILIZATION - 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. | 10-22-2015 |
405302300 | Mesh support | 3 |
20100266350 | MINING MESH WITH DOUBLE KNOT - A mining mesh comprises successive undulated transverse links ( | 10-21-2010 |
20130108377 | FREE-WHEELING-RESISTANT ROLLS FOR MINING ROOF SUPPORT AND THE COMBINATION OF A MINING MACHINE AND SUCH ROLLS | 05-02-2013 |
20150345053 | COMPOSITE ROPE AND MESH NET MADE THEREFROM - The invention provides a composite rope ( | 12-03-2015 |