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公开(公告)号：USD394039S
公开(公告)日：1998-05-05
申请号：US72587
申请日：1997-06-23
申请人： Darold B. Cummings
设计人： Darold B. Cummings
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公开(公告)号：US5741596A
公开(公告)日：1998-04-21
申请号：US313002
申请日：1989-02-21
CPC分类号： C23C28/04 , Y10T428/12056 , Y10T428/31678
摘要： An oxidation protection coating for metal substrate surfaces. The coating, according to a preferred embodiment, comprises an initial or first layer of a glass-ceramic, such as a barium aluminosilicate composed chiefly of baria, silica and alumina; or mullite, composed of silica-alumina or, alternatively, baria-silica. Titanium dioxide, nickel oxide or SnO.sub.2 can be added. The next layer of the coating is comprised of alumina or silicon carbide. The third or final layer is comprised of a thin layer of silica or a high-silica material, e.g., a silica containing 4% B.sub.2 O.sub.3. For a thicker third layer, particles of a dark solid, such as boron silicide, ferrous oxide, ferric oxide, nickel oxide, manganese dioxide, carbon or silicon carbide, can be incorporated. The three-layer coating provides high emittance and low catalytic activity for the recombination of oxygen and nitrogen, as well as being a hydrogen diffusion barrier.
摘要翻译： 金属基材表面的氧化保护涂层。 根据优选实施方案，涂层包含初始或第一层玻璃陶瓷，例如主要由硼酸盐，二氧化硅和氧化铝组成的铝硅酸钡; 或莫来石，由二氧化硅 - 氧化铝组成，或者替代为二氧化硅。 可添加二氧化钛，氧化镍或SnO2。 涂层的下一层由氧化铝或碳化硅组成。 第三层或最后层由二氧化硅或高二氧化硅材料的薄层组成，例如含有4％B 2 O 3的二氧化硅。 对于较厚的第三层，可以引入黑色固体的颗粒，例如硅化硅，氧化亚铁，氧化铁，氧化镍，二氧化锰，碳或碳化硅。 三层涂层为氧和氮的复合以及氢扩散阻挡层提供高发射率和低催化活性。
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公开(公告)号：US5735469A
公开(公告)日：1998-04-07
申请号：US653851
申请日：1996-05-28
IPC分类号： H01S3/0953 , B05B7/00
CPC分类号： H01S3/0953
摘要： A compact diffuser for recovering pressure from a supersonic flow with boundary layers. Sharp splicer plates near the wails form boundary layer scoops and separate the flow into an inner coreflow chapel and outer chambers containing small supersonic ejector nobles. The coreflow without boundary layers undergoes a single near-normal shock to recover pressure. The boundary layers are pumped to the recovery pressure in the outer ejector chambers. The subsonic part of the boundary layer flow to the outer chambers can be choked against boundary layer scoop inlet corners to isolate the upstream flow. The leading edge angle of the splicers may be selected to help induce coreflow shocking.
摘要翻译： 用于从具有边界层的超音速流回收压力的紧凑型扩散器。 靠近窗户的尖锐的拼接板形成边界层勺，并将流分离成内芯流道教堂和包含小超音速弹射器贵族的外室。 没有边界层的芯流经历单次接近正常的冲击以恢复压力。 边界层被泵送到外部喷射器室中的恢复压力。 流到外室的边界层的亚音速部分可以被阻塞在边界层勺入口拐角上以隔离上游流。 可以选择捻接器的前缘角以帮助引起芯流冲击。
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公开(公告)号：US5732003A
公开(公告)日：1998-03-24
申请号：US634003
申请日：1996-04-15
CPC分类号： H03H17/0219
摘要： Noise may be reduced or eliminated from a digital sawtooth signal representing the phase of a periodic signal. This may be done precisely, even when inexpensive fixed-point arithmetic is used. In one aspect of the invention, the input signal (noise plus true signal) 12 is filtered to produce, in succession: (a) mod one differentiated noise plus slope of true phase signal 28; (b) mod one differentiated noise plus slope of residual phase signal (true phase signal minus estimated slope of true phase signal) 36; (c) mod one differentiated noise 46; (d) estimated noise 62; and (e) smoothed phase signal 72. In a second aspect, a noisy phase signal 12 is extracted from a first arbitrary periodic signal and the above steps are used to generate a noise-reduced phase signal 72. The noise-reduced phase signal 72 is then used to generate a second arbitrary periodic signal of the same frequency.
摘要翻译： 可以从表示周期性信号的相位的数字锯齿波信号中减少或消除噪声。 这可以精确地完成，即使使用便宜的定点运算。 在本发明的一个方面，输入信号（噪声加真实信号）12被滤波以产生：（a）模仿一个微分噪声加上真相信号28的斜率; （b）将一个微分噪声加上残差相位信号的斜率（真相信号减去真相信号的估计斜率）36; （c）模仿一种差异化噪声46; （d）估计噪音62; 和（e）平滑的相位信号72.在第二方面，从第一任意周期信号中提取噪声相位信号12，并且使用上述步骤来产生降噪相位信号72.噪声降低相位信号72 然后用于产生相同频率的第二任意周期信号。
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公开(公告)号：US5721551A
公开(公告)日：1998-02-24
申请号：US636009
申请日：1996-04-22
IPC分类号： H01Q17/00
CPC分类号： H01Q17/00
摘要： An apparatus for attenuating traveling wave reflections from a surface, due to an impedance mismatch between the surface and free space. The apparatus includes a resistive element having an impedance between that of the surface and free space. The resistive element is positionable relative to the surface so as to minimize the impedance mismatch between the surface and free space. The resistive element is preferably a resistively graded element, which includes a forward end with an impedance approaching the impedance of the surface. An aft end of the resistively graded element has a high impedance relative to free space. The aft end is positionable sufficiently distant from the surface so as to minimize any traveling wave reflection due to impedance mismatch between the surface and free space.
摘要翻译： 由于表面和自由空间之间的阻抗不匹配而衰减来自表面的行波反射的装置。 该装置包括在表面和自由空间之间具有阻抗的电阻元件。 电阻元件可相对于表面定位，以便最小化表面和自由空间之间的阻抗失配。 电阻元件优选是电阻渐变元件，其包括具有接近表面阻抗的阻抗的前端。 电阻分级元件的后端相对于自由空间具有高阻抗。 后端可以距离表面足够远，以便由于表面和自由空间之间的阻抗失配而使任何行波反射最小化。
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">76.发明授权Method of making rocket engine combustion chamber utilizing "slide in" port liner 失效使用“滑入”端口衬管制造火箭发动机燃烧室的方法
公开(公告)号：US5701670A
公开(公告)日：1997-12-30
申请号：US264263
申请日：1994-06-23
CPC分类号： B23P15/008 , F02K9/972 , Y10T29/49346 , Y10T29/49826
摘要： A method of fabricating a rocket engine combustion chamber comprising assembling a liner having cooling channels, a plurality of throat support sections, and a structural jacket having inlet and outlet manifolds. Then heating the assembly in a pressurized furnace to bond the assembled parts to each other.
摘要翻译： 一种制造火箭发动机燃烧室的方法，包括组装具有冷却通道的衬套，多个喉部支撑部分和具有入口和出口歧管的结构护套。 然后在加压炉中加热组件以将组装的部件彼此粘合。
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77.发明授权
公开(公告)号：US5701439A
公开(公告)日：1997-12-23
申请号：US860654
申请日：1992-03-30
申请人： David C. James , John R. Clymer , Philip D. Corey , Nafise Nili
发明人： David C. James , John R. Clymer , Philip D. Corey , Nafise Nili
CPC分类号： G06F17/5009
摘要： The tool comprises the first step of providing a first software component, serving as a timing element, for receiving global synchronization commands as input and issuing global simulation scheduler task dispatch commands as output. A second software component is provided, serving as a global simulation scheduler, for receiving the global simulation scheduler task dispatch commands as input, synchronizing discrete event model and continuous model task dispatch as a function of simulation time, and issuing local simulation scheduler task dispatch commands as output. At least a single third software component is provided, serving as a local simulation scheduler, for receiving the local simulation scheduler task dispatch commands as input and issuing local simulation task execution commands as output. The combination of these steps provides a processing environment wherein the local simulation task execution commands invoke user supplied simulation application tasks in a time synchronized manner.
摘要翻译： 该工具包括提供作为定时元件的第一软件组件的第一步骤，用于接收全局同步命令作为输入，并发出全局模拟调度任务调度命令作为输出。 提供第二个软件组件，作为全局模拟调度程序，用于接收全局模拟调度任务调度命令作为输入，将离散事件模型和连续模型任务调度作为模拟时间的函数进行同步，并发出本地模拟调度任务调度命令 作为输出。 提供至少一个第三软件组件，作为本地模拟调度器，用于接收本地模拟调度任务调度命令作为输入，并发出本地仿真任务执行命令作为输出。 这些步骤的组合提供了处理环境，其中本地模拟任务执行命令以时间同步的方式调用用户提供的模拟应用任务。
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公开(公告)号：US5698816A
公开(公告)日：1997-12-16
申请号：US660218
申请日：1996-06-03
申请人： Donald L. Roxby
发明人： Donald L. Roxby
摘要： The identifiable bullet includes a jacket having sidewalls and a rear base; a bullet core contained within the jacket, the bullet core comprising a rear end; and, an identification member positioned between the rear base and the rear end. The invention provides an inexpensive method to add identification members to bullets that will remain legible following cartridge discharge, bullet impact and post firing environments.
摘要翻译： 可识别的子弹包括具有侧壁和后基座的护套; 包含在护套内的子弹芯，子弹芯包括后端; 以及定位在后底座和后端之间的识别构件。 本发明提供了一种便宜的方法来将识别构件添加到子弹上，该弹头将在墨盒排出，子弹撞击和后射击环境之后保持清晰。
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公开(公告)号：US5697511A
公开(公告)日：1997-12-16
申请号：US722534
申请日：1996-09-27
申请人： Clifford C. Bampton
发明人： Clifford C. Bampton
CPC分类号： B23K20/1265 , B23K2201/06 , B23K2201/12
摘要： In the construction of cylindrical tanks having end domes wherein the domes are attached by stir friction welding, a wagon wheel is placed inside the tank at the interface of the tank cylinder and the dome such that it provides backup support for the pressure exerted by the stir friction welding tool and strengthens the weld area and the tank by being welded into the tank by the stir friction welding process.
摘要翻译： 在具有端部圆顶的圆柱形罐体的结构中，其中圆顶通过搅拌摩擦焊接而附接，车轮放置在罐体内部的罐筒和圆顶的界面处，使得它为搅拌施加的压力提供支撑支撑 摩擦焊接工具，通过搅拌摩擦焊接工艺焊接到罐中，加强焊接区域和罐体。
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公开(公告)号：US5697478A
公开(公告)日：1997-12-16
申请号：US733062
申请日：1996-09-09
申请人： Frank J. Di Stefano
发明人： Frank J. Di Stefano
CPC分类号： B60R19/34 , F16F7/12 , B60R2019/242 , Y10S72/705
摘要： The sacrificial tube shock attenuation device services as a deformable energy absorbing system designed to be employed between a bumper receiving a potentially destructive force and a payload which is to be protected from the force. The device is composed of a tube assembly running through and aligning apertures of a maul, or series of mauls, which is (are) attached to the bumper and the apertures of a pair of stators, or multiple pairs of stators, that each maul is situated between. The stators are attached to the payload. When overloaded the maul(s) moves relative to the stators causing a misalignment of their respective apertures resulting in deformation of the tube assembly. A simple tube assembly may be comprised of a single tube. A more complex tube assembly may be comprised of multiple tubes within tubes depending on the anticipated overload. In a multi-tube assembly the inner tubes receive the load consecutively as the misalignment of the apertures of the maul and stators progresses. A rod may be inserted into the innermost tube for safety in case the load is high enough to sever each of the tubes in the tube assembly. The rod would stop further misalignment of the apertures of the maul and stators thereby positively limiting stroke. The sacrificial tube shock attenuation device absorbs shocks such that it takes increasing force to deform the tubes as the deformation process progresses.
摘要翻译： 牺牲管冲击衰减装置作为可变形能量吸收系统而起作用，其被设计成用于接收潜在的破坏力的保险杠和待受保护的有效载荷。 该装置由一个管组件组成，该管组件穿过并对准一个或多个毛细管的孔，该孔是连接到保险杠上的一个或多个定子的孔，或多对定子的孔 位于之间。 定子附在有效载荷上。 当过载时，毛刺相对于定子移动，导致它们各自的孔的未对准，导致管组件的变形。 简单的管组件可以由单个管组成。 根据预期的过载，更复杂的管组件可以由管内的多个管组成。 在多管组件中，随着毛和定子的孔的未对准进行，内管连续地接收负载。 为了安全起见，在负载高到足以切断管组件中的每个管的情况下，可将杆插入最内管中。 杆将停止毛刺和定子的孔的进一步的未对准，从而积极地限制冲程。 牺牲管冲击衰减装置吸收冲击，使得随着变形过程的进行而使管变形的力量增大。
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