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公开(公告)号：US20210156251A1
公开(公告)日：2021-05-27
申请号：US17101444
申请日：2020-11-23
IPC分类号： E21D11/22 , E21D11/20 , E21D15/502 , E21D15/52
摘要： An adjustable lattice girder includes a first lattice girder portion having a first end and a second end positioned opposite the first end, with the first lattice girder portion having a first connection member, and a second lattice girder portion having a first end and a second end positioned opposite the first end, with the second lattice girder portion having a second connection member configured to engage the first connection member. The first connection member is slidable relative to the second connection member between a first position corresponding to a first distance between the second end of the first lattice girder portion and the first end of the second lattice girder portion, and a second position corresponding to a second distance between the second end of the first lattice girder portion and the first end of the second lattice girder portion. The first distance different than the second distance.
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公开(公告)号：US10731463B2
公开(公告)日：2020-08-04
申请号：US16336196
申请日：2017-09-21
发明人： Trent Roberts
IPC分类号： E21D21/00
摘要： A rock bolt (10) is provided for frictionally engaging with the internal surface of a bore drilled into rockmass. The bolt comprises a tube having a circular cross-section (12) defining a longitudinal split (14) and a longitudinal axis (10a). The tube (12) in is radially expandable. The bolt (10) has a first leading end (12b) for insertion into a bore, a second end defining a head (12a) and expander means (30) for expanding the diameter of the tube at least one location along the tube. The expander means comprises first (42) and second (44) expander/wedge elements arranged so that relative movement of the two elements causes the diameter of the tube to expand at that location. The first expander element (42) is mounted on an elongate rod (30) which is aligned generally along the longitudinal axis of the tube. Rotation of the rod (30) causes the relative movement of the two elements to cause the diameter of the tube to expand at the location. The rock bolt includes an arrestor (100) in the form of a ring, which defines an aperture which locates on the proximal end of the rod (30). The aperture is larger than the proximal end of the rod so that the arrestor is able to move along the proximal end of the rod. The arrestor includes a laterally extending protrusion (102) which locates in the longitudinal split (14) and is narrower than the longitudinal split and which is configured to engage with the head of the friction bolt when moved towards the proximal end of the friction bolt.
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公开(公告)号：US20190178083A1
公开(公告)日：2019-06-13
申请号：US16326781
申请日：2017-09-25
发明人： John C. Stankus , Dakota Faulkner , Lumin Ma
摘要： A mine roof bolting system including a bearing member having a first member, a second member spaced apart from the first member, and apertures defined through each of the first and second members, and a mine roof bolt extending through the apertures. When a load is applied to the mine roof bolting system, the bearing member yields or deforms. Also, a method for providing a roof support in an underground mine including providing the bearing member and inserting a mine roof bolt through the apertures of the bearing member and into a borehole in a mine roof, wherein the bearing member yields upon application of a load in excess of a predetermined load.
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公开(公告)号：US20160178497A1
公开(公告)日：2016-06-23
申请号：US14972210
申请日：2015-12-17
发明人： Kevin Jinrong Ma , John C. Stankus , Robert McGinnis , Dakota Faulkner , Demrey Brandon , John Feyrer
IPC分类号： G01N3/30
摘要： A testing apparatus includes a frame having a top end and a bottom end, a weight block movable between the top end and the bottom end, a guide member supported by the frame and receiving the weight block, and a protection mechanism having a stopper and an actuator. The stopper being operatively connected to the actuator and movable between an extended position and a retracted position with the stopper being configured to restrict the movement of the weight block when in the extended position.
摘要翻译： 测试装置包括具有顶端和底端的框架，可在顶端和底端之间移动的配重块，由框架支撑并容纳重物块的引导构件，以及具有止动件和 执行器。 止动器可操作地连接到致动器并且可在延伸位置和缩回位置之间移动，止动器构造成在处于伸出位置时限制配重块的移动。
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公开(公告)号：US20160017709A1
公开(公告)日：2016-01-21
申请号：US14798767
申请日：2015-07-14
发明人： Travis Mikel Sub , John C. Stankus , Thomas Cook
CPC分类号： E21D21/0013 , E21D21/0086 , F16B43/002
摘要： 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.
摘要翻译： 包括的是一种抗磨垫圈系统，包括涂覆有至少0.0002英寸厚的锌涂层的两个钢垫圈，两个垫圈通过熔融温度为300°F或更低的粘合剂彼此粘合。 还包括一种矿山屋顶螺栓系统，包括：具有螺栓头的螺栓; 轴承板; 以及位于支承板和螺栓头之间的上述抗磨垫圈系统。 还包括一种制造抗磨垫圈系统的方法，该系统包括提供两个镀锌垫圈，将熔融的热塑性粘合剂沉积在围绕其中一个垫圈的一个表面周向的多个位置上，将另一个垫圈放置在粘合剂的顶部 向垫圈施加压力，并冷却粘结垫圈。
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公开(公告)号：US20140033782A1
公开(公告)日：2014-02-06
申请号：US13746432
申请日：2013-01-22
发明人： Mark M. Brandon
CPC分类号： B21F45/06 , D07B7/187 , E21D21/006
摘要： 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.
摘要翻译： 在电缆螺栓中形成灯泡的方法包括从电缆源提供电缆，沿第一方向推进电缆，以及在电缆的一部分中形成灯泡，同时电缆的一部分连续地前进，而电缆是 从电缆源连续提供。
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公开(公告)号：US20130236250A1
公开(公告)日：2013-09-12
申请号：US13774119
申请日：2013-02-22
发明人： Travis Mikel Sub , John G. Oldsen , Wallace Bolton
CPC分类号： E21D17/01 , E21D21/0006 , E21D21/0033 , E21D21/008 , E21D21/0086
摘要： 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
摘要翻译： 一种用于煤矿的肋骨或屋顶支撑的支承板和螺母和螺栓装置，其中提取的煤用于粉煤，比重在1.5-1.9，优选1.7。 轴承板具有围绕内部加强区域的外部加强区域。 外部加强区域具有一个或多个环形肋构件，并且内部加强区域具有多个腿部，其中腿部彼此间隔开，并且每个腿部的第一端部围绕支撑板的中心的螺栓孔，以接收 螺母和螺栓组件的螺栓。 轴承板和螺母和螺栓组件由玻璃纤维增强塑料制成
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公开(公告)号：US20130183105A1
公开(公告)日：2013-07-18
申请号：US13735264
申请日：2013-01-07
CPC分类号： E21D21/0093 , E21D20/00 , E21D21/0086
摘要： 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.
摘要翻译： 一种用于屋顶支撑系统的桁架鞋包括螺栓接收部分，中间部分和具有螺杆接合部分的壳体。 螺纹杆接合部分具有通道，该通道具有与螺栓接收部分间隔开且面对关系的第一开口端和相对的第二端。 通道具有从通道的第一端朝向第二端延伸的螺纹部分。 止动件与通道的第一开口端隔开。 通过这种布置，螺杆的端部穿过通道的第一开口端和止挡构件之间的空间，与止动构件接合，由此通道的螺纹部分的所有螺纹与 螺纹杆的螺纹。
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公开(公告)号：US11702935B2
公开(公告)日：2023-07-18
申请号：US17471501
申请日：2021-09-10
发明人： Dakota Faulkner , Zachary Stevens , Richard Wharton , Dan Pack
CPC分类号： E21D15/483 , B29C65/02 , B29C65/022 , B29C66/432 , B29C66/729 , B29C70/76
摘要： A pumpable crib bag may include a body defining a longitudinal axis, at least one reinforcing wire helically extending about the longitudinal axis and along a length of the body, and at least one pocket configured to hold the at least one reinforcing wire therein. The at least one reinforcing wire may include a first material and a second material.
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公开(公告)号：US20220120182A1
公开(公告)日：2022-04-21
申请号：US17430436
申请日：2020-02-13
摘要： A rock bolt dolly (10) which connects a self-drilling rock bolt (300), to a rock bolting apparatus and transfers percussive energy applied to the dolly (10) by the rock bolting apparatus (50) to the rock bolt during installation of the rock bolt in strata and rock is disclosed. The dolly includes coupling means (30a, 30b) for coupling the dolly to the output shaft of the rock bolting apparatus and a percussion plate (42) comprising an end plate (44) and integral side walls (47) defining an internally threaded recess for receiving the threaded end of the rock bolt, for applying percussive loading to the elongate hollow rod of the rock bolt (300) via the end plate and threaded side walls. The dolly also includes a body portion extending between the coupling means and the percussion plate transmitting forces from the output shaft to the percussion plate; which defines at least one passageway (136) for the passage of grout or resin from a reservoir through the rock bolt dolly and into the rock bolt.
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