公开(公告)号：US06834516B2

公开(公告)日：2004-12-28

申请号：US10131700

申请日：2002-04-24

申请人： Donald P. Jablonowski ,  Thomas E. McDonald ,  Fengqing Wu

发明人： Donald P. Jablonowski ,  Thomas E. McDonald ,  Fengqing Wu

IPC分类号： C03B3707

CPC分类号： C03B37/0142 ,  C03B2207/36 ,  C03B2207/70

摘要： Dynamically controlling the reaction temperature at the tip of a soot preform by controlling the flow of hydrogen gas to the core torch provides a wide latitude of control over the temperature range necessary to produce uniform composition of the preform.

摘要翻译： 通过控制氢气到芯焊炬的动力来控制烟炱预制件的尖端处的反应温度，提供了对制备预成型体均匀组成所需的温度范围的宽范围的控制。

公开(公告)号：US06923024B2

公开(公告)日：2005-08-02

申请号：US10142466

申请日：2002-05-09

申请人： Donald P. Jablonowski ,  Fengqing Wu

发明人： Donald P. Jablonowski ,  Fengqing Wu

IPC分类号： C03B37/014 ,  C03B37/07 ,  C03B37/018

CPC分类号： C03B37/01486 ,  C03B37/01413 ,  C03B37/0142 ,  C03B2207/36 ,  C03B2207/60 ,  C03B2207/70

摘要： The specification describes a VAD method for dynamically controlling the growth rate of both the core soot and the cladding soot in response to separate growth monitors.

摘要翻译： 本说明书描述了用于响应于单独的生长监测器来动态地控制核心烟灰和包层烟灰的生长速率的VAD方法。

公开(公告)号：US07021083B2

公开(公告)日：2006-04-04

申请号：US10353354

申请日：2003-01-29

申请人： Thomas E. McDonald ,  Fengqing Wu

发明人： Thomas E. McDonald ,  Fengqing Wu

IPC分类号： C03B37/018

CPC分类号： C03B37/01413 ,  C03B19/1415 ,  C03B37/01205 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2207/50 ,  C03B2207/70

摘要： A glass tube for use in an optical fiber preform is produced by applying a first soot on an end face of a starting member to form an elongated, porous cylindrical soot core having a first density, and applying a second soot including SiO2 on the periphery of the soot core to form a porous soot cladding having a second density greater than that of the soot core at the periphery of the core. The core and the cladding are later heated together at a temperature sufficient for sintering to form a core glass and a cladding glass. Because the soot core collapses at a greater rate than the soot cladding during sintering, the core glass separates or delaminates radially from the cladding glass. The core glass is then removed from the surrounding cladding glass, and the latter is treated to provide a high purity glass tube suitable for use as part of an optical fiber preform.

摘要翻译： 通过在起始构件的端面上施加第一烟炱以形成具有第一密度的细长多孔圆筒形烟炱芯，并且施加包括SiO 2的第二烟炱，制造用于光纤预制棒的玻璃管 在烟灰芯的周边上形成多孔烟灰包层，其具有大于核心周边处的烟灰芯的第二密度的第二密度。 芯和包层随后在足以烧结的温度下一起加热以形成芯玻璃和包层玻璃。 因为烟炱芯在烧结期间以比烟灰覆层更大的速率塌缩，所以芯玻璃与包层玻璃的径向分离或分层。 然后将核心玻璃从周围的包层玻璃中除去，并且将后者处理以提供适合用作光纤预制件的一部分的高纯度玻璃管。

公开(公告)号：US08713756B2

公开(公告)日：2014-05-06

申请号：US13195379

申请日：2011-08-01

申请人： Fengqing Wu

发明人： Fengqing Wu

IPC分类号： E05F3/02 ,  E05F1/00

CPC分类号： E05F3/221 ,  E05F3/108 ,  E05F15/00 ,  E05Y2201/68 ,  E05Y2400/86 ,  E05Y2900/132 ,  Y10T16/27 ,  Y10T16/281 ,  Y10T16/56 ,  Y10T16/585 ,  Y10T16/61

摘要： The present disclosure discloses a door closer stopper, comprising a housing mounted around a door closer, a finger press block assembly and a stop assembly disposed in the housing. The housing is provided with a slot and an opening; The finger press block assembly comprises a press block and a rotary press block hinged to the slot of the housing, and a positioning mechanism limiting the rotary press block at a position propping a catch plate; The stop assembly comprises the catch plate with a central through hole to allow the pull rod of the door closer to extend therethrough, the catch plate is perpendicular to the pull rod and has a top end in a scope of movement of the rotary press block, the rotary press block can abut against the top end of the catch plate to make the catch plate incline when the rotary press block rotates to a certain position. The present disclosure is overly compact and reasonable in structure, simple and easy to operate, and practical, safe and reliable. The user does not need to replace the original door closer and only needs to additionally install the present disclosure to perform an easy switch between several working states. The door can be positioned and remain an open state at any opening angle, and can quickly resume an auto door closing function. The present disclosure is adapted for various ordinary tubular door closers and has a broad application prospect.

摘要翻译： 本公开公开了一种闭门器，其包括围绕门关闭件安装的壳体，手指按压块组件和设置在壳体中的止动组件。 壳体设有槽和开口; 指压块组件包括压块和铰接到壳体的槽的旋转压块，以及定位机构，其将旋转压块限制在支撑止动板的位置; 止动组件包括具有中心通孔的止动板，以允许门的拉杆更靠近其延伸，止动板垂直于拉杆并且具有旋转压块的运动范围内的顶端， 当旋转压块旋转到某一位置时，旋转压块可抵靠止动板的顶端，以使夹板倾斜。 本公开结构紧凑，结构合理，操作简单，操作方便，实用，安全可靠。 用户不需要更换原来的门关闭器，并且仅需要另外安装本公开来在几个工作状态之间执行简单的切换。 门可以定位，并保持打开状态在任何开放角度，并可以快速恢复自动关门功能。 本公开适用于各种普通管状闭门器，具有广泛的应用前景。

公开(公告)号：US08307496B2

公开(公告)日：2012-11-13

申请号：US12719107

申请日：2010-03-08

申请人： Fengqing Wu

发明人： Fengqing Wu

IPC分类号： E05F3/02

CPC分类号： E05F3/108 ,  E05Y2900/132 ,  Y10T16/27 ,  Y10T16/281 ,  Y10T16/593 ,  Y10T137/7922

摘要： The present invention relates to a door closer comprising a cylinder body and a telescopic rod, wherein a one-way air intake valve is provided in the cylinder body to take in air in one way in an internal cavity of the cylinder body when the door is opened. The internal cavity of the cylinder body is divided into two automatically pressurizeable and automatically compensatable air cavities. When the door is opened or closed, the air inside the internal cavity of the cylinder body flows cyclically in the two air cavities. The door closer ensures air substantially flows cyclically in a cylinder body, reduces pollution caused by dusts in air into and out of the cylinder body to the lubricant oil in the cylinder wall, guarantees the lubricating effect of the lubricant oil, enables the door closer to operate normally and effectively prolong the service life of the door closer.

摘要翻译： 本发明涉及一种具有缸体和伸缩杆的门关闭装置，其中单向进气阀设置在气缸体中，以便当门是在气缸体内时以空气方式吸入气缸本体的内腔中 开了 气缸体的内腔分为两个自动加压和自动补偿的空气腔。 当门打开或关闭时，缸体内腔内的空气在两个空气腔中循环流动。 门关闭器确保空气基本上在气缸体中周期性地流动，减少空气中进入和离开气缸体内的气体对缸壁中的润滑油的污染，保证了润滑油的润滑效果，使得门更接近 操作正常，有效延长了门关闭器的使用寿命。

公开(公告)号：US07836728B2

公开(公告)日：2010-11-23

申请号：US11801365

申请日：2007-05-09

申请人： Eric L. Barish ,  Joseph P. Fletcher, III ,  Fengqing Wu

发明人： Eric L. Barish ,  Joseph P. Fletcher, III ,  Fengqing Wu

IPC分类号： C03B37/01 ,  C03B37/012 ,  C03B37/02

CPC分类号： C03B37/01211 ,  C03B37/01245 ,  C03B37/014

摘要： An optical fiber preform is fabricated by inserting a number of core body pieces end-to-end inside a glass cylinder, wherein the pieces may have a cladding-to-core diameter (D/d) ratio within the range of one to four. The cylinder with the inserted core body pieces is mounted vertically on a furnace and heated so that the cylinder becomes elongated and its outside diameter collapses to form a core rod from which core rod sections with D/d ratios greater than five, can be cut. A soot overcladding is deposited on the circumference of a core rod section until the diameter of the deposited soot builds to a determined value. The core rod section with the deposited soot overcladding is consolidated to obtain a finished optical fiber preform. The preform preferably has a D/d ratio of about 15 or more, and an optical fiber may be drawn directly from the preform.

摘要翻译： 光纤预制棒是通过在玻璃圆筒内端到端插入多个芯体片来制造的，其中，所述片可以具有在1至4的范围内的包芯到芯直径（D / d）比。 具有插入的芯体件的气缸垂直安装在炉子上并加热，使得气缸变长并且其外径塌陷以形成芯棒，从而可以切割D / d比大于5的芯棒部分。 烟炱外包层沉积在芯棒部分的圆周上，直到沉积的烟炱的直径建立到确定的值。 具有沉积的烟灰包层的芯棒部分被固结以获得成品的光纤预制件。 预成型体优选具有约15或更大的D / d比，并且可以从预成型件直接拉制光纤。

公开(公告)号：US20080276651A1

公开(公告)日：2008-11-13

申请号：US11801365

申请日：2007-05-09

申请人： Eric L. Barish ,  Joseph P. Fletcher, III ,  Fengqing Wu

发明人： Eric L. Barish ,  Joseph P. Fletcher, III ,  Fengqing Wu

IPC分类号： C03B37/15

CPC分类号： C03B37/01211 ,  C03B37/01245 ,  C03B37/014

摘要： An optical fiber preform is fabricated by inserting a number of core body pieces end-to-end inside a glass cylinder, wherein the pieces may have a cladding-to-core diameter (D/d) ratio within the range of one to four. The cylinder with the inserted core body pieces is mounted vertically on a furnace and heated so that the cylinder becomes elongated and its outside diameter collapses to form a core rod from which core rod sections with D/d ratios greater than five, can be cut. A soot overcladding is deposited on the circumference of a core rod section until the diameter of the deposited soot builds to a determined value. The core rod section with the deposited soot overcladding is consolidated to obtain a finished optical fiber preform. The preform preferably has a D/d ratio of about 15 or more, and an optical fiber may be drawn directly from the preform.

摘要翻译： 光纤预制棒是通过在玻璃圆筒内端到端插入多个芯体片来制造的，其中，所述片可以具有在1至4的范围内的包芯到芯直径（D / d）比。 具有插入的芯体件的气缸垂直安装在炉子上并加热，使得气缸变长并且其外径塌陷以形成芯棒，从而可以切割D / d比大于5的芯棒部分。 烟炱外包层沉积在芯棒部分的圆周上，直到沉积的烟炱的直径建立到确定的值。 具有沉积的烟灰包层的芯棒部分被固结以获得成品的光纤预制件。 预成型体优选具有约15或更大的D / d比，并且可以从预成型件直接拉制光纤。

公开(公告)号：US20110138573A1

公开(公告)日：2011-06-16

申请号：US12719107

申请日：2010-03-08

申请人： Fengqing Wu

发明人： Fengqing Wu

IPC分类号： E05F3/02 ,  F16K21/00 ,  F16K15/02

CPC分类号： E05F3/108 ,  E05Y2900/132 ,  Y10T16/27 ,  Y10T16/281 ,  Y10T16/593 ,  Y10T137/7922

摘要： The present invention relates to a door closer, and particularly to an air pressure inner circulation-type automatic compensation control door closer, comprising a cylinder body and a telescopic rod, wherein a one-way air intake valve means is provided at the other end of the cylinder body to take in air in one way in an internal cavity of the cylinder body when the door is opened, at one end portion of the telescopic rod in the interior of the cylinder body is connected a regulating valve means wherein the gas in the cylinder body flows cyclically in the cavity of the cylinder body when the telescopic rod in a moving state, an inner cover sealing means is fixedly provided inside the end cap, and a large compression spring is provided in a cavity between the inner cover sealing means and the regulating valve means; the internal cavity of the cylinder body is divided into two automatically pressurizeable and automatically compensatable gas cavities through the inner cover sealing means, the regulating valve means and the air intake valve means; when the door is opened or closed, the gas inside the internal cavity of the cylinder body flows cyclically in the two gas cavities. The air control-type door closer ensures air substantially flows cyclically in a cylinder body, reduces pollution caused by dusts in air into and out of the cylinder body to the lubricant oil in the cylinder wall, guarantees the lubricating effect of the lubricant oil, enables the door closer to operate normally and effectively prolong the service life of the door closer. Besides, the door closer exhibits an excellent damping effect and a smaller noise when the door is closed.

摘要翻译： 本发明涉及一种闭门器，特别涉及一种气压内循环型自动补偿控制门关闭器，包括一气缸体和一伸缩杆，其中单向进气阀装置设在另一端 气缸体在门打开时以单向的方式吸入气缸体的内腔中，在筒体内部的伸缩杆的一个端部处连接有调节阀装置，其中气体在 当伸缩杆处于移动状态时，缸体在气缸体的空腔中循环流动，内盖密封装置固定地设置在端盖内部，并且在内盖密封装置和内盖密封装置之间的空腔中设置有大的压缩弹簧 调节阀装置; 气缸体的内腔通过内盖密封装置，调节阀装置和进气阀装置分成两个可自动加压和自动补偿的气体腔; 当门打开或关闭时，缸体内腔内的气体在两个气体腔中循环流动。 空气控制式门关闭器确保空气在气缸体中基本上周期性地流动，减少空气中进入和流出气缸内的气体对缸壁中的润滑油的污染，保证润滑油的润滑效果， 门更接近正常运行，有效延长了门关闭器的使用寿命。 此外，当门关闭时，门关闭器显示出优异的阻尼效果和较小的噪音。

公开(公告)号：US20080260339A1

公开(公告)日：2008-10-23

申请号：US12148891

申请日：2008-04-23

申请人： Eric L. Barish ,  Robert Lingle ,  David Peckham ,  Fengqing Wu

发明人： Eric L. Barish ,  Robert Lingle ,  David Peckham ,  Fengqing Wu

IPC分类号： G02B6/036 ,  C03B37/018

CPC分类号： C03B37/01211 ,  C03B37/014 ,  C03B2201/12 ,  C03B2201/31 ,  C03C3/04 ,  C03C13/04 ,  G02B6/03627 ,  G02B6/03644 ,  G02B6/03677 ,  G02B6/03694

摘要： Described herein is a method for making a depressed index cladding for the inner cladding of an optical fiber. The method involves making the depressed index cladding in two steps. The innermost portion of the inner cladding is produced using a soot method, thereby deriving the advantages of the soot method for the region of the cladding that carries the most optical power, then forming the remaining portion of the inner cladding layer using a rod-in-tube step. This method effectively marries the advantages and disadvantages of both methods.

摘要翻译： 这里描述了一种用于制造用于光纤的内包层的凹陷折射率包层的方法。 该方法包括使凹陷的折射率包层分两步进行。 使用烟灰法制造内包层的最内部，从而得到具有最大光焦度的包层的区域的烟灰法的优点，然后使用棒入法形成内包层的剩余部分 立方步。 这种方法有效地结合了两种方法的优缺点。

公开(公告)号：US08196437B2

公开(公告)日：2012-06-12

申请号：US12902316

申请日：2010-10-12

申请人： Eric L. Barish ,  Joseph P. Fletcher, III ,  Fengqing Wu

发明人： Eric L. Barish ,  Joseph P. Fletcher, III ,  Fengqing Wu

IPC分类号： C03B37/01 ,  C03B37/012 ,  C03B37/02

CPC分类号： C03B37/01211 ,  C03B37/01245 ,  C03B37/014

摘要： Core rod sections useable for production of finished optical fiber preforms are fabricated by inserting one or more core body pieces axially end-to-end inside a glass cylinder, thereby defining joints between adjacent ones of the inserted pieces. The cylinder is mounted with the contained core body pieces in the region of a furnace. The glass cylinder and core body pieces are heated together in the furnace, thereby elongating the cylinder and the core body pieces contained in the cylinder, and the cylinder collapses to form a finished core rod. Core rod sections are cut from the finished core rod at positions that coincide with the joints between the core body pieces. One or more of the cut core rod sections are useable for the production of optical fiber preforms.

摘要翻译： 用于生产成品光纤预制棒的芯棒部分通过将一个或多个芯体件沿轴向端对端插入玻璃圆筒内而制成，从而限定相邻插入件之间的接合部。 气缸在炉的区域中安装有包含的芯体件。 玻璃圆筒和芯体片在炉中一起加热，从而使容纳在圆筒中的圆筒和芯体片伸长，并使圆筒塌缩，形成成品芯棒。 在与核心体部件之间的接合部重合的位置处，从完成的芯棒切割出芯棒部分。 一个或多个切割芯棒部分可用于生产光纤预制棒。