公开(公告)号：US5954455A

公开(公告)日：1999-09-21

申请号：US848398

申请日：1997-05-08

申请人： Jack R. Eaton ,  Frank Calandra, Jr. ,  John G. Oldsen ,  John C. Stankus

发明人： Jack R. Eaton ,  Frank Calandra, Jr. ,  John G. Oldsen ,  John C. Stankus

IPC分类号： E21D20/02 ,  E21D21/00 ,  E21D21/02

CPC分类号： E21D21/008 ,  E21D20/025 ,  E21D21/006 ,  E21D21/0093

摘要： A tensionable combination mine roof bolt is disclosed for use in resin grouted applications. The mine roof bolt includes a lower rod member having a rotatable bolt head at a first end thereof supporting a bearing plate and a threaded second end spaced from the first end. A coupling threadingly receives the lower rod member therein. A shearable stop device, such as a shear pin, is positioned within the coupling and adapted to stop the threaded lower rod member at a first position for rotation of the cable mine roof bolt during installation. After an upper portion of the cable mine roof bolt is secured, the shearable stop mechanism is subsequently sheared by the lower rod member to allow for tensioning of the cable mine roof bolt. A flexible multi-strand cable is coupled to the coupling device and forms the attachment point for the cable mine roof bolt.

摘要翻译： 公开了一种用于树脂灌浆应用的可拉紧组合的矿山屋顶螺栓。 矿井顶部螺栓包括下杆构件，其在其第一端处具有可旋转的螺栓头，其支撑轴承板和与第一端间隔开的带螺纹的第二端。 联接器在其中螺纹地接收下杆构件。 诸如剪切销的可剪切的止动装置被定位在联接器内，并且适于在螺纹的下杆构件在第一位置处停止以在安装期间旋转缆索矿顶顶螺栓。 在电缆矿井顶部螺栓的上部被固定之后，可剪切的止动机构随后由下杆构件剪切，以允许缆索矿井顶部螺栓的张紧。 柔性多股电缆耦合到联接装置，并形成电缆矿井屋顶螺栓的连接点。

公开(公告)号：US5851481A

公开(公告)日：1998-12-22

申请号：US863828

申请日：1997-05-27

申请人： John C. Stankus ,  Frank Calandra, Jr. ,  Michael Cokus ,  Ray W. Goetz

发明人： John C. Stankus ,  Frank Calandra, Jr. ,  Michael Cokus ,  Ray W. Goetz

IPC分类号： E21D21/00 ,  C22C38/12 ,  E21D20/00

CPC分类号： E21D21/0006

摘要： A steel alloy having 0.44-0.52 wt. % C, 1.1-1.6 wt. % Mn, 0.15-0.35 wt. % Si, a maximum of 0.04 wt. % P, a maximum of 0.05 wt. % S, a maximum of 0.45 wt. % Cu and 0.06-0.09 wt. % V. A No. 5 mine roof bolt formed from the steel alloy has a minimum yield strength of 90,000 psi. A mine roof bolt having a cross-sectional diameter of 7/8 inch or 1 inch and formed from the steel alloy has a minimum yield strength of 100,000 psi.

摘要翻译： 具有0.44-0.52重量％ ％C，1.1-1.6wt。 ％Mn，0.15-0.35wt。 ％Si，最大0.04重量％ ％P，最大0.05重量％ ％S，最大0.45重量％ ％Cu和0.06-0.09wt。 ％V。由钢合金形成的5号矿山屋顶螺栓的最小屈服强度为90,000psi。 由钢合金形成的横截面直径为+ E，7/8 + EE英寸或1英寸的矿山屋顶螺栓具有100,000psi的最小屈服强度。

公开(公告)号：US5314268A

公开(公告)日：1994-05-24

申请号：US4076

申请日：1993-01-13

申请人： Frank Calandra, Jr. ,  John C. Stankus ,  John G. Oldsen

发明人： Frank Calandra, Jr. ,  John C. Stankus ,  John G. Oldsen

IPC分类号： E21D21/00 ,  E21D20/02

CPC分类号： E21D21/008 ,  E21D21/0006

摘要： An elongated rod fabricated of polymeric material for use in reinforcing an underground passage includes an integral structure of a shaft portion, washer element and torque receiving end portion. The shaft portion is fabricated of a preselected polymeric material as required to meet the strength requirements of the rod in reinforcing the rock formation surrounding the passage. For use in reinforcing the side walls of a passage, the rod is fabricated of plastic material recycled, for example, from plastic beverage containers. The integral construction eliminates the need to thread the end of the rod to receive a nut. The washer element seats against a bearing block compressed against the side wall. When used with a resin system, the rod is anchored in the bore hole to maintain the bearing block compressed against the side wall to support the surrounding rock strata.

摘要翻译： 用于加固地下通道的由聚合材料制成的细长杆包括轴部分，垫圈元件和转矩接收端部分的整体结构。 轴部分由根据需要的预选聚合材料制成，以满足在加强围绕通道的岩层的杆的强度要求。 为了用于加强通道的侧壁，杆由例如从塑料饮料容器再循环的塑料材料制成。 整体结构消除了需要将杆的端部螺纹接收螺母。 垫圈元件靠在压靠侧壁的轴承座上。 当与树脂系统一起使用时，杆被锚固在钻孔中，以保持轴承座压靠侧壁以支撑周围的岩石层。

公开(公告)号：US5385433A

公开(公告)日：1995-01-31

申请号：US156066

申请日：1993-11-22

申请人： Frank Calandra, Jr. ,  John C. Stankus ,  Eugene H. Stewart ,  Dominic Cricelli

发明人： Frank Calandra, Jr. ,  John C. Stankus ,  Eugene H. Stewart ,  Dominic Cricelli

IPC分类号： E21D11/00 ,  E21D21/00 ,  F16B43/00 ,  F16B43/02

CPC分类号： F16B43/00 ,  E21D11/006 ,  E21D21/0086 ,  F16B2043/008

摘要： An elongated channel beam for supporting the surface of an underground rock formation includes a base portion with a bearing surface for contacting the rock strata and an opposite surface having a longitudinally extending central rib and flanged edges for resisting deflection and bending of the channel beam under the load of the rock strata. A plurality of openings spaced a preselected distance apart extend through the central rib. A bearing plate is positioned in overlying abutting relation with each opening in the channel beam. The bearing plate includes embossed areas and longitudinally flanged edges that overlie in abutting relation the central rib and flanged edges of the channel beam. The bearing plate is restrained from longitudinal and lateral movement on the channel beam. Anchor bolts extend through the aligned openings in the bearing plate and channel beam into bore holes drilled in the rock formation. Tightening the anchor bolt compresses the bearing plate against the channel beam with the compressive forces distributed over the surface of the bearing plate and transmitted throughout the channel member to support the rock formation.

摘要翻译： 用于支撑地下岩层的表面的细长的通道梁包括具有用于接触岩层的支承表面的基部和具有纵向延伸的中心肋和法兰边的相对表面，用于抵抗在下面的通道梁的偏转和弯曲 岩层的载荷。 间隔开预定距离的多个开口延伸穿过中央肋。 轴承板与通道梁中的每个开口处于上下邻接的位置。 轴承板包括压花区域和纵向凸缘边缘，其与通道梁的中心肋和法兰边缘相邻地邻接。 轴承板在通道梁上被限制在纵向和横向运动。 锚固螺栓延伸穿过轴承板中的对齐开口和通道梁进入钻岩中钻孔。 紧固锚定螺栓将承载板压靠在通道梁上，压缩力分布在承载板的表面上并传递通过通道构件以支撑岩层。

公开(公告)号：US5244314A

公开(公告)日：1993-09-14

申请号：US722125

申请日：1991-06-27

申请人： Frank Calandra, Jr. ,  Jerry E. Frease ,  John C. Stankus

发明人： Frank Calandra, Jr. ,  Jerry E. Frease ,  John C. Stankus

IPC分类号： E21D20/02 ,  E21D21/00

CPC分类号： E21D21/008 ,  E21D20/02

摘要： An expansion assembly for use with resin on a mine roof bolt includes an expandable shell and a camming plug having a first end wall spaced from a second end wall by a tapered body portion. Four equidistantly spaced grooves extend longitudinally in the tapered body portion. Pairs of grooves are connected across the second end wall by transverse grooves that form resin flow channels. A rib formation extends outwardly from the side wall adjacent to and removed from a groove. The rib formation defines the edge of the groove and abuts an edge of one of the fingers of the expandable shell to align the grooves of the plug with the respective slots formed between the shell fingers. This alignment assures unobstructed flow of the mixed resin downwardly through the plug grooves and shell slots into surrounding relation with the expansion assembly for secure bonding of the assembly with the walls of a bore hole.

摘要翻译： 一种用于矿山屋顶螺栓上的树脂的膨胀组件包括可膨胀外壳和凸轮塞，其具有通过锥形主体部分与第二端壁隔开的第一端壁。 四个等间隔开的槽在锥形主体部分中纵向延伸。 一对槽通过形成树脂流动通道的横向沟槽跨越第二端壁连接。 肋状结构从与沟槽相邻并从沟槽移除的侧壁向外延伸。 肋形成限定了凹槽的边缘并且邻接可膨胀壳体的一个指状物的边缘，以将插塞的凹槽与形成在壳指之间的相应狭槽对准。 这种对准确保混合树脂的畅通无阻的流动通过插塞槽和壳体槽与膨胀组件的周围关系，用于将组件与钻孔的壁牢固地接合。

公开(公告)号：US5078547A

公开(公告)日：1992-01-07

申请号：US609882

申请日：1990-11-06

申请人： Frank Calandra, Jr. ,  John C. Stankus

发明人： Frank Calandra, Jr. ,  John C. Stankus

IPC分类号： E21D21/00

CPC分类号： E21D21/008

摘要： An improved expansion assembly for a mine roof bolt adapted for use in a 11/2" diameter bore hole with a 1" roof bolt. The expansion assembly has a plug with tapered surfaces, an expansion shell with leaves extending axially upwardly from a support ring into contact with the tapered surfaces of the plug and a support washer. The inner surface of the expansion leaves are spaced inwardly from the surface of the support ring. The expansion leaves have serrations on their outer surfaces such that the serrations are formed by the intersection of a planar surface perpendicular to the axis of the mine bolt and a frusto-conical surface. The end of the leaves on the expansion shell have vertical serrations parallel to the longitudinal axis of the leaf. The tapered plug has channels running longitudinally between the surfaces on the plug for facilitating use of the expansion assembly with resin. The improved expansion assembly may be utilized with or without resin bonding.

摘要翻译： 一种用于矿山屋顶螺栓的改进的膨胀组件，适用于具有1“屋顶螺栓的11/2”直径钻孔。 膨胀组件具有带有锥形表面的塞子，膨胀壳体，叶片从支撑环轴向向上延伸以与塞子的锥形表面和支撑垫圈接触。 膨胀叶片的内表面与支撑环的表面向内间隔开。 膨胀叶片在其外表面上具有锯齿状，使得锯齿由垂直于矿用螺栓的轴线的平面和截头圆锥形表面的交点形成。 膨胀壳上的叶的末端具有平行于叶的纵向轴线的垂直锯齿。 锥形塞具有在插头表面之间纵向延伸的通道，以便于膨胀组件与树脂的使用。 改进的膨胀组件可以在有或没有树脂粘合的情况下使用。

公开(公告)号：US4969778A

公开(公告)日：1990-11-13

申请号：US429752

申请日：1989-10-30

申请人： Frank Calandra, Jr. ,  Mike Cokus ,  John C. Stankus ,  Paul Yacisin

发明人： Frank Calandra, Jr. ,  Mike Cokus ,  John C. Stankus ,  Paul Yacisin

IPC分类号： E21D21/00

CPC分类号： E21D21/008

摘要： An improved expansion assembly for a mine roof bolt for use in a nominal one inch diameter bore hole with a nominal 5/8" diameter roof bolt is provided. The expansion assembly has a tapered plug with four tapered surfaces, an expansion shell that has four leaves extending axially upwardly from a support ring and into contact with the four tapered surfaces on the tapered plug, and a threaded support washer to support the expansion shell on the threaded end of a mine roof bolt. The tapered plug has a threaded bore therethrough for threading onto the mine roof bolt. The tapered plug tapered surfaces have an angle of taper of at least 6.5.degree. to the axis of the mine roof bolt. The expansion leaves each have seven serrations formed on the surface such that the serrations are formed by the intersection of a planar surface perpendicular to the axis of the mine roof bolt and a frusto-conical surface. The frusto-conical surface is at an angle of 72.3.degree. to the planar surface. The serrations are equally spaced from each other and have a peak to peak distance of 0.186". The expansion shell has a maximum length of 2.35 inches. The tapered plug has a rounded upper surface and channels running longitudinally between the tapered surfaces on the plug for facilitating use of the expansion assembly with resin. The improved expansion assembly may be utilized with or without resin bonding.

摘要翻译： 提供了一种用于矿山屋顶螺栓的改进的膨胀组件，其用于具有标称直径为5/8“的屋顶螺栓的标称1英寸直径的钻孔中。 膨胀组件具有带有四个锥形表面的锥形塞子，膨胀壳体具有从支撑环轴向向上延伸并与锥形塞子上的四个锥形表面接触的四个叶片，以及用于将膨胀壳体支撑的螺纹支撑垫圈 矿井顶螺栓的螺纹端。 锥形塞具有穿过其中的螺纹孔，用于穿过矿井顶部螺栓。 锥形塞锥形表面的锥角与矿顶盖螺栓的轴线至少为6.5°。 膨胀叶各自在表面上形成有七个锯齿，使得锯齿由垂直于矿顶车顶螺栓的轴线的平面与截头圆锥形表面的交点形成。 截头圆锥面与平面的角度为72.3°。 锯齿相互间隔相等并且具有0.186“的峰到峰距离。 膨胀壳的最大长度为2.35英寸。 锥形塞具有圆形的上表面和在插头上的锥形表面之间纵向延伸的通道，以便于膨胀组件与树脂的使用。 改进的膨胀组件可以在有或没有树脂粘合的情况下使用。

公开(公告)号：US4904123A

公开(公告)日：1990-02-27

申请号：US367553

申请日：1989-06-19

申请人： Frank Calandra, Jr. ,  Mike Cokus ,  John C. Stankus ,  Paul Yacisin

发明人： Frank Calandra, Jr. ,  Mike Cokus ,  John C. Stankus ,  Paul Yacisin

IPC分类号： E21D21/00

CPC分类号： E21D21/008

摘要： An improved expansion assembly for a mine roof bolt for use in a nominal one inch diameter bore hole with a nominal 5/8" diameter roof bolt is provided. The expansion assembly has a tapered plug with four tapered surfaces, an expansion shell that has four leaves extending axially upwardly from a support ring and into contact with the four tapered surfaces on the tapered plug, and a threaded support washer to support the expansion shell on the threaded end of a mine roof bolt. The tapered plug has a threaded bore therethrough for threading onto the mine roof bolt. The tapered plug tapered surfaces have an angle of taper of at least 6.5.degree. to the axis of the mine roof bolt. The expansion leaves each have seven serrations formed on the surface such that the serrations are formed by the intersection of a planar surface perpendicular to the axis of the mine roof bolt and a frusto-conical surface. The frusto-conical surface is at an angle of 72.3.degree. to the planar surface. The serrations are equally spaced from each other and have a peak to peak distance of 1.86". The expansion shell has a maximum length of 2.35 inches. The tapered plug has a rounded upper surface and channels running longitudinally between the tapered surfaces on the plug for facilitating use of the expansion assembly with resin. The improved expansion assembly may be utilized with or without resin bonding.

摘要翻译： 提供了一种用于矿山屋顶螺栓的改进的膨胀组件，其用于具有标称直径为5/8“的屋顶螺栓的标称1英寸直径的钻孔中。 膨胀组件具有带有四个锥形表面的锥形塞子，膨胀壳体具有从支撑环轴向向上延伸并与锥形塞子上的四个锥形表面接触的四个叶片，以及用于将膨胀壳体支撑的螺纹支撑垫圈 矿井顶螺栓的螺纹端。 锥形塞具有穿过其中的螺纹孔，用于穿过矿井顶部螺栓。 锥形塞锥形表面的锥角与矿顶盖螺栓的轴线至少为6.5°。 膨胀叶各自在表面上形成有七个锯齿，使得锯齿由垂直于矿顶车顶螺栓的轴线的平面与截头圆锥形表面的交点形成。 截头圆锥面与平面的角度为72.3°。 锯齿相互间隔相等，峰到峰距离为1.86“。 膨胀壳的最大长度为2.35英寸。 锥形塞具有圆形的上表面和在插头上的锥形表面之间纵向延伸的通道，以便于膨胀组件与树脂的使用。 改进的膨胀组件可以在有或没有树脂粘合的情况下使用。

公开(公告)号：US5919006A

公开(公告)日：1999-07-06

申请号：US19731

申请日：1998-02-06

申请人： Frank Calandra, Jr. ,  John C. Stankus ,  James J. Scott, deceased ,  Brian R. Castle ,  John G. Oldsen ,  Kendal L. Taylor ,  Paul Yacisin

发明人： Frank Calandra, Jr. ,  John C. Stankus ,  James J. Scott, deceased ,  Brian R. Castle ,  John G. Oldsen ,  Kendal L. Taylor ,  Paul Yacisin

IPC分类号： E21D20/02 ,  E21D21/00 ,  E21D21/02 ,  F16B13/06 ,  F16B31/02 ,  E21D20/00

CPC分类号： E21D20/025 ,  E21D20/026 ,  E21D21/0026 ,  E21D21/006 ,  E21D21/008 ,  E21D21/02

摘要： A tensionable mine roof cable bolt having a resin grouted upper portion and a mechanically anchored lower portion. The lower portion includes a shaft which is swaged to the cable and accepts a mechanical anchor. The cable bolt is rotated during installation in a mine roof to mix resin and simultaneously engage the mechanical anchor with the rock. A drivehead attached to the lower end of the cable fails upon tensioning of the bolt to a predetermined load.

摘要翻译： 一种可张紧的矿顶电缆螺栓，其具有树脂灌浆上部和机械锚定的下部。 下部包括一个轴，该轴被锻造到电缆并且接受机械锚。 电缆螺栓在安装在矿山屋顶期间旋转以混合树脂，同时将机械锚与岩石接合。 连接在电缆下端的驱动头在将螺栓张紧到预定负载时失效。

公开(公告)号：US5785463A

公开(公告)日：1998-07-28

申请号：US584977

申请日：1996-01-11

申请人： Jack R. Eaton ,  Frank Calandra, Jr. ,  John G. Oldsen

发明人： Jack R. Eaton ,  Frank Calandra, Jr. ,  John G. Oldsen

IPC分类号： E21D20/02 ,  E21D21/00 ,  E21D20/00

CPC分类号： E21D21/008 ,  E21D20/025 ,  E21D21/006 ,  E21D21/0093

摘要： A tensionable combination cable mine roof bolt is disclosed for use in resin grouted applications. The mine roof bolt includes a rod member having a rotatable bolt head at a first end thereof supporting a bearing plate and a threaded second end spaced from the first end. A coupling threadingly receives the rod member therein. A shearable stop device, such as a shear pin, is positioned within the coupling and adapted to stop the threaded rod member at a first position for rotation of the cable mine roof bolt during installation. After an upper portion of the cable mine roof bolt is secured, the shearable stop mechanism is subsequently sheared by the rod member to allow for tensioning of the cable mine roof bolt. A flexible multi-strand cable is coupled to the coupling device and forms the attachment point for the cable mine roof bolt.

摘要翻译： 公开了一种用于树脂灌浆应用的可拉伸组合电缆矿井屋顶螺栓。 矿山屋顶螺栓包括一个杆构件，该杆构件在其第一端处具有可旋转的螺栓头部，该第一端部支撑承载板和与该第一端部间隔开的带螺纹的第二端。 联接器在其中螺纹地接收杆构件。 诸如剪切销的可剪切止动装置定位在联接器内，并且适于在安装期间将螺纹杆构件停止在第一位置以旋转电缆矿井顶部螺栓。 在电缆矿井顶部螺栓的上部被固定之后，可剪切的止动机构随后被杆构件剪切以允许电缆矿井屋顶螺栓的张紧。 柔性多股电缆耦合到联接装置，并形成电缆矿井屋顶螺栓的连接点。