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公开(公告)号：US11111948B2
公开(公告)日：2021-09-07
申请号：US16392721
申请日：2019-04-24
发明人： Matthew Hilliard
摘要： An aircraft assembly having a titanium rod comprising a first threaded portion, and a titanium nut comprising a second threaded portion conforming with the first threaded portion for mating engagement with it. One of the first and second threaded portions defines a male thread and the other one of the first and second threaded portions defines a female thread such that the nut can be wound in threading engagement along the rod. A threaded insert formed from a first metal of different hardness in comparison to titanium is coupled to the rod or the nut to define the first threaded portion or the second threaded portion respectively such that one of the first and second threaded portions is formed from titanium and the other one of the first and second threaded portions is formed from the first metal.
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公开(公告)号：US10913103B2
公开(公告)日：2021-02-09
申请号：US15735518
申请日：2016-06-08
申请人： Jun Zhou
发明人： Jun Zhou , Yongliang Zhang , Jianming Yang , Minjun Yang
摘要： Provided is a method for performing an external pipe thread process on a hollow blank by at least twice rolling, wherein amount of rolling wheels in a rolling wheel set, used in any two back-to-back rolling processes in a processing sequence, are different in parity. Further provided are various roll-processing modules and corresponding rolling apparatuses, achieving the above processing method and having a simple structure, portability and practicality. A hollow blank is not liable to deform when performing an external pipe thread rolling process thereon, thereby improving a processing yield.
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公开(公告)号：US10722934B2
公开(公告)日：2020-07-28
申请号：US15685845
申请日：2017-08-24
申请人： Kenneth Roger Levey
发明人： Kenneth Roger Levey
IPC分类号： B21H3/02
摘要： Cold-forming equipment configured as a high precision thread rolling assembly utilizing racks, guide rails, a bearing assembly including rolling element linear motion bearings and a gear reduction assembly.
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公开(公告)号：US20190331156A1
公开(公告)日：2019-10-31
申请号：US16392721
申请日：2019-04-24
发明人： Matthew Hilliard
摘要： An aircraft assembly having a titanium rod comprising a first threaded portion, and a titanium nut comprising a second threaded portion conforming with the first threaded portion for mating engagement with it. One of the first and second threaded portions defines a male thread and the other one of the first and second threaded portions defines a female thread such that the nut can be wound in threading engagement along the rod. A threaded insert formed from a first metal of different hardness in comparison to titanium is coupled to the rod or the nut to define the first threaded portion or the second threaded portion respectively such that one of the first and second threaded portions is formed from titanium and the other one of the first and second threaded portions is formed from the first metal.
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公开(公告)号：US10118214B2
公开(公告)日：2018-11-06
申请号：US15567968
申请日：2016-04-27
申请人： Sanshu Co., Ltd.
发明人： Masaki Taniguchi
摘要： A thread-rolling flat die for a threaded fastener, includes a thread-rolling surface including at least a bite surface to which a workpiece of the threaded fastener is supplied, a finishing surface formed adjacent to the bite surface, and a roll-off surface formed adjacent to the finishing surface. The bite surface includes at least: a first partial bite surface having an inclination and a second partial bite surface formed continuously from the first partial bite surface and having an inclination. A length L1 along a thread-rolling direction in the first partial bite surface, a length L3 along the thread-rolling direction in the finishing surface, a length L4 along the thread-rolling direction in the roll-off surface, and a diameter of a processed portion of the workpiece of the threaded fastener have a relationship of L1>L3>L4> the diameter of the processed portion.
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公开(公告)号：US20180209139A1
公开(公告)日：2018-07-26
申请号：US15868156
申请日：2018-01-11
发明人： Tai-Yuan TU
CPC分类号： E04B1/4157 , B21H3/02 , B21K1/46 , B23K31/022 , E04C5/163 , E04G21/12
摘要： A combined anchor and rebar assembly includes a rebar, a bolt head, an anchor bolt and a weld joint. The bolt head is formed integrally as one piece with an end of the rebar. The anchor bolt includes a threadless portion and a threaded portion. The threaded portion has a diameter smaller than that of the threadless portion and is formed with a screw thread. The weld joint joins another end of the rebar to the threadless portion in a manner that the rebar and the threadless portion are aligned along an axial line. The weld joint has a cross section larger than that of the threadless portion and projects radially from the rebar and the threadless portion. A method of producing the combined anchor and rebar assembly is also disclosed.
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公开(公告)号：US20180135681A1
公开(公告)日：2018-05-17
申请号：US15466370
申请日：2017-03-22
发明人： Chao-Wei LIN
CPC分类号： F16B25/0036 , B21H3/022 , B21H3/06 , F16B25/00 , F16B25/0015 , F16B25/0078
摘要： A crack-proof screw includes a thread formed around a shank. A helical notch continuously and helically extends along the shank and is indented into the shank and the thread. The helical notch is proximal to but spaced apart from a tip of the shank. The notch is trapezoidal in cross section, and has a notch bottom, an open end opening at an outer peripheral surface of the shank oppositely of the notch bottom, and two opposite notch walls extending divergingly from the notch bottom to the open end. The open end is larger in width than the notch bottom. A method of making the screw is also disclosed.
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公开(公告)号：US09915279B2
公开(公告)日：2018-03-13
申请号：US15468647
申请日：2017-03-24
发明人： Edward A. DePietro
CPC分类号： F16B13/085 , B21H3/02 , B65D90/10 , F16B13/065
摘要： In combination, a manway cover and a manway flange having one or more bolt opening(s) and a pull-up bolt assembly adapted to be used for supporting a hinge component to the manway cover, the manway flange, or both, where the pull-up bolt assembly having a pull-up bolt member, a nut component, a tapered member, and an expandable friction member, where one or more structures selected from a thread, a ridge and/or a groove disposed on an outside surface of the expandable friction member and the one or more bolt opening(s) having an inside surface adapted for mating with the corresponding one or more structures of the expandable friction member whereby, when the pull-up bolt assembly is engaged within the one or more bolt opening(s), the one or more structures aligns with the corresponding inside surface of the one or more bolt opening(s).
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9.发明授权Screw or nut with a thread a pitch of which varies and tool to produce said screw or nut 有权螺丝或螺母具有螺距，螺纹或螺母的间距是不同的，并且用于产生所述螺钉或螺母的工具公开(公告)号：US09352382B2
公开(公告)日：2016-05-31
申请号：US13146195
申请日：2010-01-19
申请人： Joachim Galipaud
发明人： Joachim Galipaud
摘要： The distribution of load stresses on threads engaged with a standard screw or nut is very unequal. Indeed, the first threads in engagement support a large majority of the load. So if the load is too important, the threads give way and the function is not provided any more by the screw or the nut. In the prior art, threads are known whose depth or pitch varies a lot in order to cause a self-clamping. In particular, the invention aims at optimizing the resistance and the fatigue resistance of the screws by distributing the load at the very best on their threads without causing this self-clamping. It was shown that the control of the pitch variation, within a chosen pitch tolerance, makes it possible to control the stress distribution on the threads. It is possible to determine a different variation for each load case encountered.
摘要翻译： 与标准螺丝或螺母啮合的螺纹上的载荷应力分布非常不平等。 事实上，第一个参与线程支持绝大多数的负载。 所以如果负载太重要，螺纹就会让位，螺丝或螺母不再提供功能。 在现有技术中，螺纹是已知的，其深度或间距大量变化以引起自夹紧。 特别地，本发明的目的是通过在最大程度上将负载分布在其螺纹上而不引起该自夹紧来优化螺钉的阻力和抗疲劳性。 已经表明，在选定的俯仰公差范围内对间距变化的控制使得可以控制螺纹上的应力分布。 可以确定遇到的每个负载情况的不同变化。
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公开(公告)号：US20160003282A1
公开(公告)日：2016-01-07
申请号：US14770410
申请日：2014-02-12
CPC分类号： F16B25/0026 , B21H3/022 , B21H3/027 , F16B25/0084
摘要： A method for producing a concrete screw is disclosed. The method includes providing a wire piece as a workpiece, forming a thread helix on a lateral surface of the workpiece, and providing a depression in the lateral surface of the workpiece by a forming process.
摘要翻译： 公开了一种混凝土螺杆的制造方法。 该方法包括提供作为工件的线片，在工件的侧表面上形成螺纹螺纹，并通过成形工艺在工件的侧表面上提供凹陷。
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