FCI HOLDINGS DELAWARE, INC. Patent applications |
Patent application number | Title | Published |
20140315649 | System and Method of Producing Mine Roof Bolts - A method of producing a mine roof bolt includes: providing a plurality of bars of a predetermined length, moving the plurality of bars along a conveyor and indexing the position of the plurality of bars, and passing a portion of each of the bars through a processing station, where the processing station comprises at least one of a header assembly, an extruder assembly, and a threading assembly. The method further includes processing a portion of each of the bars with the processing station. A system for producing a mine roof bolt includes a conveyor configured to index and transport a bar, a feed arrangement configured to continuously deliver bars to the conveyor, a processing station comprising at least one of a header assembly, an extruding assembly, and a threading assembly, where the processing station is positioned along the conveyor and configured to receive and process a portion of the bars. | 10-23-2014 |
20140154017 | SELF-DRILLING FRICTION BOLT - A reinforcement system includes an adapter, a friction bolt, a drilling rod coupled to the adapter, and a drill bit configured to drill an opening optimally sized for receiving the friction bolt. The drilling rod has a diameter that allows for introduction of the drilling rod into the friction bolt. | 06-05-2014 |
20140147227 | Cable Bolt - A cable bolt comprises a cable having an elongate body with a first end and a second end, a barrel and wedge assembly attached to the cable at a position adjacent to the first end of the cable, and a seal member having a body defining a passageway that receives a portion of the elongate body of the cable. The body of the seal member includes at least one rib extending radially outward from the body of the seal member. | 05-29-2014 |
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 |
20140033782 | Method and Apparatus for Continuous Bulbing of Stranded Cable - A method of forming a bulb in a cable bolt includes providing cable from a cable source, advancing the cable in a first direction, and forming a bulb in a portion of the cable while the portion of the cable is continuously advanced and while the cable is continuously provided from the cable source. | 02-06-2014 |
20130236250 | Fiberglass Roof and Rib Plate - A bearing plate and a nut and bolt arrangement for use as a rib or roof support for coal mines where the extracted coal is used for powder coal and has a specific gravity in the range of 1.5-1.9, preferably 1.7. The bearing plate has an outer reinforced area surrounding an inner reinforced area. The outer reinforced area has one or more endless rib members and the inner reinforced area has a plurality of legs, wherein the legs are spaced from one another and the first end of each leg encircles a bolthole in a center of the bearing plate to receive the bolt of the nut and bolt assembly. The bearing plate and the nut and bolt assembly are made of fiberglass reinforced plastic | 09-12-2013 |
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 |
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 |
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 |
20120251262 | Fully Grouted Mine Roof Bolt With Expansion Anchor - A reinforcement system characterized by being formed by a standard helical rod, an expansion head adapted to the thread of the rod, a conical element made of a plastic material, a tube or sheath made of corrugated plastic, a reinforcement plate, and a standard threaded reinforcement nut, according to the helical rod employed, in order to provide immediate mechanical anchoring and the option of subsequent mortar injection. | 10-04-2012 |
20120155970 | Mine Roof Bolt With End Fitting - A mine roof bolt includes an elongated body, first and second nuts, and an end fitting. The elongated body has a first end and a second end with the first end having a threaded portion. The first and second nuts are positioned on the threaded portion of the first end of the elongated body. The end fitting is positioned on the threaded portion of the first end of the elongated body between the first and second nuts. | 06-21-2012 |
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 |
20120070234 | Rock Bolt - The present invention relates to rock bolts which may be used in mining applications. The rock bolt of this invention includes a mechanical anchoring arrangement to facilitate retaining the rock bolt in a borehole, and also a drill bit to enable self drilling of the rock bolt. Rotation of the rock bolt about an axis of the rock bolt in a first direction causes the drill bit to drill into rock and to create a borehole to receive the rock bolt. Subsequently, rotation in the opposite direction actuates a mechanical anchoring arrangement to anchor rock bolt. | 03-22-2012 |
20120039672 | FULLY GROUTED CABLE BOLT - 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. | 02-16-2012 |
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 |
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 |
20120034035 | Tensionable Cable Bolt with Crimped Shaft - A tensionable cable bolt including a length of multi-strand cable and an anchoring portion comprised of a shaft received on the cable and attached to the cable at a crimp portion comprising at least one primary crimp with at least one secondary crimp disposed within the primary crimp. The cable may include a mixing portion and the anchor portion may include an expansion anchor threaded onto the shaft. A method of manufacturing the tensionable cable bolt includes providing a length of multi-strand cable; providing an anchoring portion including a shaft; extending the cable through the shaft; and crimping the shaft to the cable to form at least one primary crimp with at least one secondary crimp disposed within the primary crimp. The method may further include threading an expansion anchor onto the shaft and/or providing a resin mixing portion along the cable. | 02-09-2012 |
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 |
20120027521 | Engineered Mine Seal - A method for designing and fabricating a mine seal includes determining an initial thickness for a mine seal based on a predetermined underground opening, developing and solving a numerical model for response of the mine seal upon application of a blasting pressure, and determining whether the mine seal meets predetermined design criteria. A mine seal having a minimum seal thickness may be fabricated after determining the mine seal meets the predetermined design criteria. | 02-02-2012 |
20110299939 | Expandable Bolt With Shielded Tip - The present invention includes a rock bolt having a longitudinally expandable tube. The tube includes a longitudinally extending depression that defines a temporary enclosed longitudinal passageway. The rock bolt further includes a shielded distal end to prevent debris from entering the temporary enclosed longitudinal passageway. The distal end is shielded using a cover which may be a plug or a cap and may provide a rounded tip for the rock bolt. The plug may be spherical. The cap may be attached such that its proximal end abuts the distal end of the rock bolt, is inserted into the distal end of the rock bolt, or extends beyond the distal end and along the sidewall of the rock bolt. The present invention also includes a method of making such a rock bolt and a method of using such a rock bolt. | 12-08-2011 |
20110268526 | Injection Molded Torque Nut with Internal Recession - A torque nut includes a threaded passageway and a groove. The groove has its opening facing the passageway. A breakaway insert having a major body portion is formed in the passageway, and a tab connected to the major body portion is formed in the groove, for example, by injection molding. The tab connected to the major body portion prevents rotation of the insert in the passageway. In one use, a resin component, a catalyst component and a first end of a rock-bolt are positioned in a bore hole. The torque nut is threaded onto the opposite end of the rock-bolt. Rotation of the torque nut rotates the rock-bolt, mixing the components. After the components set, increased torque is applied to the torque nut to fracture the insert and move the nut up the threaded end of the rock-bolt against roof stabilizing components. | 11-03-2011 |
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 |
20110217126 | SHEATHED CABLE - A cable bolt comprising a tension member having a first end and a second end. A rotatable collar is positioned on the tension member and is rotatable relative to the tension member. An elongate sheath, having a first end and a second end, is disposed over at least a portion of the tension member and secured to the rotatable collar. A method of securing an anchor in a structure is also disclosed. | 09-08-2011 |
20110200400 | PLASTIC CABLE BOLT BUTTON - A cable bolt button comprising a continuous sidewall having a first end, a second end and an end portion attached to the first end of the sidewall, forming an inner cavity. The cable bolt button forms an interference fit between the sidewall of the cable bolt button and a cable bolt when the button is placed over the distal end of the cable bolt. The cable bolt button may also include a plurality of protrusions extending outwardly from the end portion away from the inner cavity and/or at least one recess. The protrusions may be separate features of the end portion or the first end of the sidewall may have a non-linear profile with the periphery of the end portion following the profile of the sidewall to form the protrusions and recesses. The end portion may also comprise a plurality of intersecting surfaces further shaping the protrusions and recesses. | 08-18-2011 |
20110142548 | End Coupling for a Rock Bolt - An end coupling for a shaft of a rock bolt comprises a body having a lead portion with a leading end, and a tail portion with a trailing end. The tail portion is arranged to be connected to a drive to impart rotation to the coupling about its axis. The body defines a passage extending between the leading and trailing ends and a first portion of the passage extends from the leading end and has a first diameter. A second portion of the passage is disposed adjacent the first portion and has a second diameter that is larger than said first diameter. A first thread extends along at least part of the first portion of the passage and is arranged to engage an external thread on the rock bolt shaft. A rock bolt assembly incorporating the end coupling is also disclosed. | 06-16-2011 |
20100310323 | ROCK BOLT ASSEMBLY - A rock bolt assembly comprising a rock bolt having an elongate shaft extending between opposite distal and proximal ends of the rock bolt, and a sheath disposed on the shaft at or adjacent the distal end of the bolt, the sheath having a body that extends about the shaft, the body having a longitudinal axis, opposite leading end and trailing end spaced apart along the axis, the body incorporating a cavity in which the shaft is disposed, the cavity extending from the trailing end of the body. | 12-09-2010 |
20100266345 | ENGAGEMENT HEAD FOR TENSIONING ASSEMBLY - An engagement head for a rock bolt tensioning assembly is disclosed that is profiled to include at least one key surface to inhibit rotation of the engagement head relative to a rock surface, either by direct engagement with the rock surface or through abutment with a plate-like member that is engageable with the rock surface. | 10-21-2010 |