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    • 3. 发明授权
    • Method for aligning bore forming pins during molding of multi-fiber
optical connector ferrules
    • 在多纤维光纤连接器套圈成型过程中对准成型销的方法
    • US6071442A
    • 2000-06-06
    • US96971
    • 1998-06-12
    • David L. DeanAlan J. MalanowskiMichael D. Domaille
    • David L. DeanAlan J. MalanowskiMichael D. Domaille
    • G02B6/40B29C33/30B29D11/00G02B6/38B29C33/38
    • G02B6/3865B29C33/304B29D11/00663G02B6/3839G02B6/3854G02B6/3885Y10S425/01
    • A guide block assembly and associated method are provided for retaining a plurality of fiber bore forming pins and at least one guide bore forming pin in precise relation to each other during molding of a multi-fiber ferrule used in a multi-fiber connector. The assembly comprises an array of fiber bore blocks each with a fiber bore therethrough to retain a respective one of the fiber bore forming pins. At least one guide block that defines a guide bore for retaining a guide bore forming pin is assembled with the array of fiber bore blocks. Adjoining surfaces are defined between adjacent fiber bore blocks and between the guide bore blocks and the array of fiber bore blocks. The use of bores more precisely retains the pins during the molding process, and the use of blocks with adjoining surfaces allows for the machining of such surfaces to precisely establish the relationships between successive fiber bore blocks and between the array of fiber bore blocks and the guide bore blocks.
    • 提供了一种引导块组件和相关联的方法,用于在多纤维连接器中使用的多纤维套圈的模制期间,将多个纤维孔形成销和至少一个引导孔形成销彼此精确地相互关联。 组件包括一组纤维孔块,每个纤维孔块具有穿过其中的纤维孔,以保持相应的一个纤维孔形成销。 限定用于保持引导孔形成销的导向孔的至少一个引导块与所述纤维孔块阵列组装在一起。 相邻的表面限定在相邻的纤维孔块之间以及在导向孔块和纤维孔块的阵列之间。 在模制过程中更精确地使用孔保持销,并且使用具有邻接表面的块允许加工这些表面以精确地建立连续的纤维孔块之间以及在纤维砌块阵列与导向件之间的关系 砌块。
    • 7. 发明授权
    • Connector for optical fibers
    • 光纤连接器
    • US4923274A
    • 1990-05-08
    • US371193
    • 1989-06-26
    • David L. Dean
    • David L. Dean
    • G02B6/24G02B6/38H02G15/08
    • G02B6/3809G02B6/3806G02B6/42
    • Disclosed herein is a connector for positioning an optical fiber featuring a rotatable locking ring having a cam shaped inner wall having in circumferential succession a first, second, and third inner diameter, the third inner diameter being smaller than the first inner diameter and the second inner diameter being smaller than the third inner diameter, rotation of the locking ring applying inward radial compression to centering elements as the locking ring is rotated from the first to second inner diameter position and to a closed position when the area of the third inner diameter is reached. A plurality of centering members is provided, at least one having no resilient coating thereon, whereby compression forces an optical fiber against resilient material, thereby centering the optical fiber and giving the fiber additional strength to withstand longitudinal tension forces. Also disclosed is an end grommet sized to allow watertight insertion of a buffer tube.
    • 本文公开了一种用于定位光纤的连接器,其特征在于具有可旋转的锁定环,该锁定环具有凸轮形内壁,所述凸轮形内壁的圆周连续地具有第一,第二和第三内径,所述第三内径小于所述第一内径, 直径小于第三内径时,当达到第三内径的面积时锁定环从第一至第二内径位置转动到关闭位置时,锁定环向内径向压缩施加到定心元件的旋转 。 提供了多个定心构件,至少一个在其上没有弹性涂层,由此压缩力使光纤抵抗弹性材料,从而使光纤居中并给予纤维额外的强度以承受纵向张力。 还公开了尺寸为允许缓冲管的水密插入的端部垫圈。
    • 9. 发明授权
    • Process for producing a hybrid rocket fuel
    • 制造混合火箭燃料的方法
    • US5619011A
    • 1997-04-08
    • US548330
    • 1995-11-01
    • David L. Dean
    • David L. Dean
    • C06B21/00C06B45/10C06B47/02C06D5/00
    • C06B47/02C06B21/0058C06B45/10C06D5/00
    • A solid rocket fuel is formed by mixing a liquid hydroxyl terminated prepolymer such as polybutadiene, with hexamethylenetetramine, and adding a cross-linking agent, particularly a multifunctional isocyanate. The mixture is poured or cast into a mold, cartrige, or insulated motor case and cured, preferably at ambient temperature. The hexamethylenetetramine is employed as the major fuel component in an amount in the range of about 60 to about 83% based on the total weight of the fuel. The preferred curing or cross-linking agent is a liquid multifunctional isocyanate. Processing aids and/or mechanical property modifiers can be added in minor amounts.
    • 通过将液体羟基封端的预聚物如聚丁二烯与六亚甲基四胺混合并加入交联剂,特别是多官能异氰酸酯来形成固体火箭燃料。 将混合物倒入或浇注到模具,卡特里克或绝缘的马达壳体中,并且优选在环境温度下固化。 基于燃料的总重量,六亚甲基四胺用作主要燃料组分,其量为约60至约83%。 优选的固化或交联剂是液体多官能异氰酸酯。 加工助剂和/或机械性能改性剂可以少量添加。