Resilient sealing means for joint between elements having different coefficients of expansion
    2.
    发明授权
    Resilient sealing means for joint between elements having different coefficients of expansion 失效
    具有不同膨胀系数的元素之间的接合密封性

    公开(公告)号:US3799411A

    公开(公告)日:1974-03-26

    申请号:US19082671

    申请日:1971-10-20

    Applicant: CHEMPLAST INC

    Inventor: CARPENTER R

    CPC classification number: A61M5/31513 F16J15/3208

    Abstract: A resilient static and dynamic sealing assembly for maintaining a fluid tight joint or connection between operatively associated elements where the elements are made of materials having different coefficients of expansion and one element of a relatively stronger material acts to confine the other material in the operative position. The sealing assembly includes on the confined element an elastomeric means which coacts with an annular wall in engagement with the confining element and acts with the annular wall to maintain the seal within conventionally anticipated temperature ranges at least between 32*F and 212*F. The sealing assembly can be provided with means for adjusting the force exerted to form the seal between the operatively associated elements. Further, the sealing assembly will provide an improved laboratory Burette, disposable hypodermic syringes and other devices adapted to utilize the same.

    Abstract translation: 一种弹性静态和动态密封组件,用于维持操作相关元件之间的流体密封接头或连接,其中元件由具有不同膨胀系数的材料制成,并且一种相对较强的材料的一种元件用于将另一种材料限制在操作位置。 密封组件在密封元件上包括弹性体装置,其与与限制元件接合的环形壁共同作用并与环形壁起作用以将密封件保持在常规预期的温度范围内至少在32°F和212°F之间。 密封组件可以设置有用于调节施加以在操作相关元件之间形成密封的力的装置。 此外,密封组件将提供改进的实验室滴定管,一次性皮下注射器和适于利用其的其它装置。

    Radio opaque and optically transparent tubing
    3.
    发明授权
    Radio opaque and optically transparent tubing 失效
    无线电OPAQUE和光学透明管

    公开(公告)号:US3608555A

    公开(公告)日:1971-09-28

    申请号:US3608555D

    申请日:1968-12-31

    Applicant: CHEMPLAST INC

    CPC classification number: A61L29/18 A61M25/0009 A61M25/0108 A61M2025/0062

    Abstract: Tubing having a smooth inner bore and a smooth even outer surface wherein the properties of X-ray opacity and optical permeability are optimized and maximized by forming the tubing from a plastic and an X-ray opaque substance homogeneously dispersed in the plastic wherein the X-ray opaque substance has a controlled concentration and an index of refraction as close to the index of refraction of the plastic as possible; additionally where the plastic forms crystalline structures it is not annealed during the fabrication of the tubing to further optimize optical permeability of the tubing.

    Plastic duplicate of cellulosic or proteinaceous material, article or object
    4.
    发明授权
    Plastic duplicate of cellulosic or proteinaceous material, article or object 失效
    纤维素或蛋白质材料的塑料复合物,物品或物体

    公开(公告)号:US3775170A

    公开(公告)日:1973-11-27

    申请号:US3775170D

    申请日:1971-06-25

    Applicant: CHEMPLAST INC

    Inventor: ROSENBLATT S

    Abstract: A plastic, material, article or object formed as a substantial duplicate in high molecular weight polymeric material such as polyfluorocarbon resins, polyvinyl chloride and polyvinyidene chloride; of a matrix consisting of cellulosic and proteinacious materials by the process of impregnating a selected matrex with the selected high molecular weight polymeric material and carbonizing the matrix in a controlled concentration of oxygen at a temperature at least equal to the sintering temperature of the selected high molecular weight polymeric duplicating material until the duplicating material coalesces to form the selfsupporting continuous duplicate by gradual replacement of the carbonizing fibers of the selected matrix.

    Abstract translation: 在高分子量聚合物材料如多氟碳树脂,聚氯乙烯和聚亚乙基氯中形成为实质复制物的塑料,材料,制品或物品; 由纤维素和蛋白质材料组成的基质,通过使用所选择的高分子量聚合物材料浸渍所选择的matrex并在受控浓度的氧气中在至少等于所选高分子量的烧结温度的温度下碳化基质 重复的聚合物复制材料,直到复制材料通过逐渐替换所选择的基体的碳化纤维聚结以形成自支撑连续重复。

    Resilient sealing means for joint between elements having different coefficients of expansion
    5.
    发明授权
    Resilient sealing means for joint between elements having different coefficients of expansion 失效
    具有不同膨胀系数的元素之间的接合密封性

    公开(公告)号:US3632119A

    公开(公告)日:1972-01-04

    申请号:US3632119D

    申请日:1969-12-29

    Applicant: CHEMPLAST INC

    Abstract: A resilient static and dynamic sealing assembly for maintaining a fluidtight joint or connection between operatively associated elements where the elements are made of materials having different coefficients of expansion and one element of a relatively stronger material acts to confine the other material in the operative position. The sealing assembly includes on the confined element an elastomeric means which coacts with an annular wall in engagement with the confining element and acts with the annular wall to maintain the seal within conventionally anticipated temperature ranges at least between 32* and 212* F. The sealing assembly can be provided with means for adjusting the force exerted to form the seal between the operatively associated elements. Further, the sealing assembly will provide an improved laboratory Burette, disposable hypodermic syringes and other devices adapted to utilize the same.

    Abstract translation: 一种弹性静态和动态密封组件,用于维持操作相关元件之间的流体密封接头或连接,其中元件由具有不同膨胀系数的材料和相对较强材料的一个元件制成,用于将其它材料限制在操作位置。 密封组件包括在限制元件上的弹性体装置,其与与限制元件接合的环形壁共同作用并与环形壁起作用以将密封件维持在常规预期的温度范围内至少在32°至212°F之间。密封 组件可以设置有用于调节施加以在操作相关元件之间形成密封的力的装置。 此外,密封组件将提供改进的实验室滴定管,一次性皮下注射器和适于利用其的其它装置。

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