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    • 7. 发明授权
    • Slush producing process and device
    • 生产工艺和装置
    • US6131397A
    • 2000-10-17
    • US262787
    • 1999-03-04
    • John E. DavisTibor I. LakGene RogersJames F. WeberMichael V. MerlinTimothy L. Gaynor, IIIDavid L. Gerhardt
    • John E. DavisTibor I. LakGene RogersJames F. WeberMichael V. MerlinTimothy L. Gaynor, IIIDavid L. Gerhardt
    • F25J1/00B64G1/40B64G5/00C06B47/06C06B47/12F25C1/00F25D3/10F17C5/00
    • B64G1/402B64G5/00C06B47/06C06B47/12F25C1/00F25C2301/002F25C2600/04Y02E60/324
    • Slush is made from a liquid using slush making systems or according to slush making processes. A jacketed vessel of the processes and the systems has an interior wall that defines an interior space. The interior space comprises a top and a bottom. The interior space has an average overall cross-sectional area taken through a vertical axis extending generally between the top and the bottom. The interior space also has a collection portion having an average collection portion cross-sectional area taken through the vertical axis that is less than the average overall cross-sectional area. The liquid is placed into the interior space and the interior walls are cooled. Slush forms on the interior walls and migrates to the collection portion. The collection portion is located at the interior space bottom when the slush density is higher than the liquid density and the collection portion is located at the interior space top when slush density is less than the liquid density. To facilitate the migration of the slush to the collection portion, at least a conical portion of the interior space has the general shape of a cone and the collection portion is located in the proximity of an apex of the conical portion, thereby helping to funnel the slush to the collection portion. The cryogenic liquid to be made into slush may be oxygen, nitrogen, hydrogen, helium, or water. The slush may be used to densify cryogenic liquids, such as cryogenic liquid propellants.
    • 泥浆由使用制浆系统的液体或根据制浆工艺制成。 工艺和系统的夹套容器具有限定内部空间的内壁。 内部空间包括顶部和底部。 内部空间的平均整个横截面面积通过一般在顶部和底部之间延伸的垂直轴线。 内部空间还具有收集部分,该收集部分具有通过垂直轴线截取的平均收集部分横截面积小于平均总横截面积。 液体被放置在内部空间中并且内壁被冷却。 在内墙上形成灰浆,并迁移到收集部分。 当泥浆密度高于液体密度时,收集部分位于内部空间底部,当灌浆密度小于液体密度时,收集部分位于内部空间顶部。 为了便于将浆料迁移到收集部分,内部空间的至少一个锥形部分具有锥体的大致形状,并且收集部分位于锥形部分的顶点附近,从而有助于漏斗 溜到收集部分。 待制成冷冻的低温液体可以是氧气,氮气,氢气,氦气或水。 泥浆可用于致密化低温液体,例如低温液体推进剂。
    • 8. 发明授权
    • Optics assembly for observing a panoramic scene
    • 用于观察全景场景的光学组件
    • US5627675A
    • 1997-05-06
    • US455885
    • 1995-05-13
    • John E. DavisMarion N. ToddMitchell RudaTilman W. StuhlingerKenneth R. Castle
    • John E. DavisMarion N. ToddMitchell RudaTilman W. StuhlingerKenneth R. Castle
    • G02B13/06G02B17/06G02B17/08G02B17/00
    • G02B13/06
    • An optics assembly for observing a panoramic scene. The optics assembly includes a plurality of optical elements. A first element redirects light from the panoramic scene. The optical power of the first element forms an imaginary pupil. The energy from the first element is redirected about 90 degrees, forming an annular path. A second element receives the redirected light and re-images the imaginary pupil to form a real pupil. This portion of the energy continues to be in an annular form. A third element includes an optical relay system having a group of reimaging optics. The third element receives light from the second element while relaying the real pupil into the reimaging optics. It also establishes the focal length of the optics assembly, corrects pupil aberrations produced at the real pupil, corrects field aberrations and produces an annular image on a flat focal plane. The optical relay system interfaces with the second element through the use of the real pupil. The real pupil is formed at the cold stop and filter location in the third element. This pupil is relayed back through the system to be coincident with the first real pupil. The optics assembly produces a small F-number at field angles near perpendicular to the output optical axis of the optics assembly over a panoramic scene.
    • 用于观察全景场景的光学组件。 光学组件包括多个光学元件。 第一个元素重定向来自全景场景的光。 第一元件的光学功率形成假想光瞳。 来自第一元件的能量被重定向大约90度,形成环形路径。 第二个元件接收重定向的光并重新映射虚拟的光瞳以形成真正的光瞳。 能量的这一部分继续呈环状。 第三元件包括具有一组再成像光学器件的光学继电器系统。 第三元件从第二元件接收光,同时将真实光瞳中继到重构成像光学元件中。 它还建立光学组件的焦距,校正在真实光瞳处产生的光瞳像差,校正场像差并在平坦焦平面上产生环形图像。 光学继电器系统通过使用真实光瞳与第二个元件相连接。 真正的瞳孔形成在第三个元件的冷停止和过滤器位置。 这个学生通过系统被传回来与第一个真正的学生一致。 光学组件在垂直于光学组件的输出光轴的场角上在全景场景上产生小的F数。