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    • 62. 发明授权
    • Connector for tubing
    • 管道连接器
    • US4291903A
    • 1981-09-29
    • US28768
    • 1979-04-10
    • Robert E. Fields
    • Robert E. Fields
    • F16L21/08F16L19/06F16L47/04F16L35/00
    • F16L19/062F16L47/04Y10T403/1666
    • A connector is described for joining tubes together, particularly plastics tubing as used in laboratories and the like.The connector comprises a first member having a barb-like projection through which the tube can be pushed but cannot be pulled in the reverse direction due to the interaction between the barb-like projection and the surface of the tube. The protruding captive end of the tube passes through a resiliently deformable disc of plastics material preferably Polytetrafluroethylene and in a preferred embodiment the disc is partly housed in a cup-shaped extension from the first member.The assembly of first member and disc is secured within a sleeve by means of a screw-thread engagement between the said first member or a further member which acts on the rear of the said first member. The said further member is screw-threadedly engaged into or onto the sleeve.A screwdriver slot is formed at the end of the said further member and a transverse slot intersects the screwdriver slot to allow the tube extending therethrough to be pushed to one side or the other to facilitate the insertion of a screwdriver blade or the like tool.In one embodiment the end face of the plastics disc is plain for seating against a corresponding plain end face of a similar plastics disc or seating within the sleeve. In another embodiment the sleeve is formed with two conical seatings at opposite ends joined by a throughbore and the discs are formed with complementary conical mating surfaces.
    • 描述了用于将管连接在一起的连接器,特别是在实验室等中使用的塑料管。 连接器包括具有倒钩形突起的第一构件,由于倒钩形突起和管表面之间的相互作用,管可以被推动而不能沿相反方向拉动。 管的突出的夹持端通过塑料材料的弹性变形的盘,优选聚四氟乙烯,并且在优选的实施方案中,盘部分地容纳在从第一构件的杯形延伸部中。 第一构件和盘的组件通过在所述第一构件或作用在所述第一构件的后部上的另一构件之间的螺纹接合而固定在套筒内。 所述另外的构件螺纹地接合到套筒中或套筒上。 在所述另一构件的端部处形成螺丝刀槽,并且横向狭槽与螺丝刀槽相交,以允许穿过其中的管被推动到一侧或另一侧以便于插入螺丝刀或类似工具。 在一个实施例中,塑料盘的端面是平坦的,用于抵靠类似塑料盘的对应的平坦端面或套筒内的座。 在另一个实施例中,套筒形成有两个圆锥形座,在相对端通过通孔连接并且盘形成有互补的锥形配合表面。
    • 66. 发明授权
    • Corrosion resistant seal for compression couplings
    • 用于压缩接头的耐腐蚀密封件
    • US3799584A
    • 1974-03-26
    • US29522772
    • 1972-10-05
    • ROBROY IND
    • SLOCUM F
    • F16L19/065F16L58/10F16L58/18F16L9/14F16L19/06F16L55/00
    • F16L19/065F16L58/1063F16L58/184Y10S411/903Y10S411/915
    • An improved corrosion resistant seal for compression coupling devices includes threadably engageable male and female coupling members. Each of said respective coupling members has an insulating, moisture resistant, resilient, polymeric coating, such as a polyvinylchloride coating bonded to the metal substrate. Both male and female coupling member coatings terminate in respective annular resilient flange portions. Each of the annular flange portions extends radially of its respective coupling member in a manner whereby threadably engaging and advancing male and female members results in contact of the respective flange portions providing an effective moisture seal therebetween and an effective insulating coupling that prevents galvanic and chemical corrosion thereof. A further embodiment of the improved corrosion resistant seal for compression couplings includes a male coupling member coating continued beyond the adjacent resilient flange portion and terminating in a threaded portion adjacent the matching threads of the male coupling member. The male coupling member completely engages the female coupling member when all the threads of the female coupling extend over all the threads of the male coupling member and engage the threaded portion of the male coupling member coating. An effective moisture seal is first provided by the contact of the respective resilient flanges of the male and female coupling members when the threaded portion of the female member initially engages the threaded portion of the male member.
    • 用于压缩联接装置的改进的耐腐蚀密封件包括可螺纹接合的凸形和阴型联接构件。 每个所述相应的联接构件具有绝缘,防潮,弹性的聚合物涂层,例如结合到金属基底的聚氯乙烯涂层。 阳联接构件和阴联接构件涂层均终止于相应的环形弹性凸缘部分中。 每个环形凸缘部分以其相应的联接构件的径向延伸,使得螺纹接合和前进的阳和阴构件导致相应的凸缘部分的接触,从而在它们之间提供有效的湿气密封,以及有效的绝缘耦合,防止电化学和腐蚀 其中。 用于压缩联接器的改进的耐腐蚀密封件的另一实施例包括连续超过相邻的弹性凸缘部分并且终止于与阳联接构件的匹配螺纹相邻的螺纹部分中的阳联接构件涂层。 当阴联接件的所有螺纹延伸到阳联接构件的所有螺纹上并且接合阳连接构件涂层的螺纹部分时,阳连接构件完全接合阴连接构件。 当阴构件的螺纹部分最初接合阳构件的螺纹部分时,首先通过阳联接构件和阴联接构件的相应弹性凸缘的接触来提供有效的防潮密封。