公开(公告)号：US06991266B2

公开(公告)日：2006-01-31

申请号：US10322519

申请日：2002-12-19

申请人： Kiyoshi Nishio

发明人： Kiyoshi Nishio

IPC分类号： F16L25/00

CPC分类号： F16L47/04

摘要： The invention provides a pipe joint made of resin in which a predetermined pressing force in the axial direction corresponding to a fastening torque of a union nut can be obtained, and the strength of threads can be enhanced. Each of the threads of an external thread portion of a joint body and an internal thread portion of a union nut is formed asd an asymmetrical trapezoid, an inclined angle α1 of first flanks of the asymmetrical trapezoidal threads which contact with each other by fastening the union nut is set to 70 to 90°, and an included angle α2 of the flanks opposite to the first flanks is set to 40 to 80°, and wherein the joint body defines a sealing portion the angle and direction of taper of which is defined by an angle θ0, said external thread is defined by an angle θ1, where θ1=α1 and wherein θ0 |cos θ1|.

摘要翻译： 本发明提供了一种由树脂制成的管接头，其中可以获得与轴颈螺母的紧固扭矩对应的轴向的预定按压力，并且能够提高螺纹的强度。 接头本体的外螺纹部分的每个螺纹和联管螺母的内螺纹部分形成为非对称梯形，不对称梯形螺纹的第一侧面的倾斜角α1/ 通过将联接螺母紧固而彼此接触设置为70至90°，并且与第一侧面相对的侧面的夹角α2 <2>被设置为40至80°，并且其中接头 本体限定一个密封部分，其锥度的角度和方向由角度θθ定义，所述外螺纹由角度θ1定义，其中θ _{1 =α1＆lt; 1＆gt;和＆lt; 0＆lt; 1＆lt; 1＆gt;和|cosθ＆lt; 0＆ > |cosθ<1> 。}

公开(公告)号：US06896299B1

公开(公告)日：2005-05-24

申请号：US09581213

申请日：1998-11-05

申请人： Kiyoshi Nishio

发明人： Kiyoshi Nishio

IPC分类号： F16L33/22 ,  F16L47/04 ,  F16L25/00 ,  F16L19/04

CPC分类号： F16L33/223 ,  F16L47/04

摘要： A cylindrical projecting portion is disposed in a projected tip end portion of an inner ring which is to be pressingly inserted into one end portion of a pipe member to be integrated therewith, an inner radial face of the cylindrical projecting portion is formed as a conical tapered face in which the diameter is larger as one moves toward the outer side in the axial direction, and a cylindrical groove into which the cylindrical projecting portion of the inner ring including the conical tapered face is to be fitted in the axial direction to form a sealing portion is formed in an inner area of a receiving port of a joint body to form sealing portions between the two members and, whereby even a small fastening force due to screw advancement of a pressing ring is enabled to generate a high contact pressure between the tapered face and an outer radial face, and faces and which are opposed thereto, to ensure a sealing performance of very high reliability.

摘要翻译： 圆筒形突出部分设置在内圈的突出的顶端部分中，该内圈将被压入插入管构件的一个端部以一体形成，圆柱形突出部分的内径面形成锥形锥形 在轴向方向上朝向外侧移动直径大的面，以及包括锥形锥面的内圈的圆筒形突出部在其轴向上嵌合的圆筒状槽，形成密封 部分形成在接头主体的接收端口的内部区域中，以在两个部件之间形成密封部分，由此即使由于按压环的螺杆前进而导致的小的紧固力也能够在锥形部件之间产生高的接触压力 面和外径向面，以及与其相对的面，以确保非常高的可靠性的密封性能。

公开(公告)号：US06776440B2

公开(公告)日：2004-08-17

申请号：US10155055

申请日：2002-05-24

申请人： Kiyoshi Nishio

发明人： Kiyoshi Nishio

IPC分类号： F16L2500

CPC分类号： F16L47/04 ,  F16L19/041

摘要： A structure for preventing slipping-off of a tube in a pipe joint made of resin in which a union nut (2) is fastened to a joint body (1) to cause a pressing edge portion (19a) of the union nut (2) to abut against a diameter-increased root portion (17) of a tube (3), thereby pressing one end of the tube (3) toward the joint body (1), a recess (20) is previously shaped in the diameter-increased root portion (17) of the tub (3), the recess being smaller in radius of curvature or angle than the diameter-increased root portion, and the pressing edge portion (19a) of the union nut (2) is then caused to abut against the recess (20).

摘要翻译： 一种用于防止在由联接螺母（2）紧固到接头体（1）上的管道中的管子的滑动的结构，以使得联管螺母（2）的挤压边缘部分（19a） 抵靠管（3）的直径增加的根部（17），从而将管（3）的一端朝向接头本体（1），凹部（20）预先成形为直径增大 所述桶（3）的根部（17），所述凹部的曲率半径或角度比所述直径增大的根部部分小，然后使所述联管螺母（2）的按压边缘部分（19a）抵接 抵靠凹部（20）。

公开(公告)号：US06685449B1

公开(公告)日：2004-02-03

申请号：US09868939

申请日：2001-07-18

申请人： Kiyoshi Nishio

发明人： Kiyoshi Nishio

IPC分类号： F04B4502

CPC分类号： F04B43/088 ,  F04B43/0063 ,  F04B43/084

摘要： A bellows that is extendingly and contractingly deformable in the axial direction is placed in a pump body, and a liquid chamber is formed inside the bellows. A suction port and a discharge port are formed in an inner bottom face of the pump body facing the liquid chamber. Liquid is sucked from the suction port into the liquid chamber by extension of the bellows, and the liquid in the liquid chamber is discharged from the discharge port by contraction of the bellows. In each of a suction ball type check valve disposed in the suction port, and a discharge ball type check valve disposed in an outflow passage which communicates with the discharge port, a cylindrical valve casing is disposed, and ball valve elements in the valve casing are caused by their own weight to be closely contacted with valve seat, thereby preventing liquid from reversely flowing.

摘要翻译： 在轴向方向上可伸缩地变形的波纹管被放置在泵体内，并且在波纹管内形成液体室。 吸入口和排出口形成在泵体的面向液体室的内底面中。 通过波纹管的延伸将液体从吸入口吸入液体室，并且通过波纹管的收缩将液体室中的液体从排出口排出。 在设置在吸入口中的抽吸式止回阀和设置在与排出口连通的流出通道中的排出球型止回阀中的每一个中，设置有圆柱形阀壳体，阀壳体中的球阀元件 由其自身的重量引起与阀座紧密接触，从而防止液体反向流动。

公开(公告)号：USD464409S1

公开(公告)日：2002-10-15

申请号：US29115549

申请日：1999-12-15

申请人： Kiyoshi Nishio

设计人： Kiyoshi Nishio

公开(公告)号：US06364640B1

公开(公告)日：2002-04-02

申请号：US09685092

申请日：2000-10-11

申请人： Kiyoshi Nishio ,  Ryo Imanishi ,  Yoji Minato ,  Masayoshi Katsura ,  Hitoshi Kawamura ,  Makoto Fujii

发明人： Kiyoshi Nishio ,  Ryo Imanishi ,  Yoji Minato ,  Masayoshi Katsura ,  Hitoshi Kawamura ,  Makoto Fujii

IPC分类号： F04B1100

CPC分类号： F04B11/0016 ,  F04B9/125 ,  F04B39/0061 ,  F04B43/073

摘要： The invention provides a pump with a pulsation suppression device which can further enhance the effect of suppressing pulsation. According to the invention, in one side portion of a pump head wall 1 having inflow and outflow passages 2 and 3, a first bellows 7 which is driven so as to extend and contract by an air cylinder portion 14, and check valves 16a and 16b which alternately open and close a pump working chamber 9a formed in the first bellows 7 are disposed to constitute a reciprocal pump portion 4. In the other side portion of the pump head wall 1, a pulsation suppressing portion 5 is configured so as to have a second bellows 18 that is extendable and contractible, and that forms: a liquid chamber 20a which can temporarily store liquid that is to be discharged from the pump portion 4; and an air chamber 20b which is isolated from the liquid chamber 20a. The pulsation suppressing portion absorbs pulsation of the liquid which is discharged from the pump portion 4, by a change in the capacity of the liquid chamber 20a. The extension rate of the second bellows 18 is set to be larger than that of the first bellows 7.

摘要翻译： 本发明提供一种具有脉动抑制装置的泵，其可以进一步增强抑制脉动的效果。根据本发明，在具有流入通道2和流出通道3的泵头壁1的一侧部分中，第一波纹管7 被驱动以由气缸部分14延伸和收缩，并且设置交替打开和关闭形成在第一波纹管7中的泵工作室9a的止回阀16a和16b，以构成往复泵部分4.另一侧 泵头壁1的一部分，脉动抑制部5被配置为具有可伸缩的第二波纹管18，并且形成：液体室20a，其能够临时储存从泵排出的液体 第4部分; 以及与液体室20a隔离的空气室20b。 脉动抑制部通过液体室20a的容量的变化吸收从泵部4排出的液体的脉动。 第二波纹管18的延伸率被设定为大于第一波纹管7的伸长率。

公开(公告)号：US6089621A

公开(公告)日：2000-07-18

申请号：US175541

申请日：1998-10-20

申请人： Kiyoshi Nishio

发明人： Kiyoshi Nishio

IPC分类号： F16L19/04 ,  F16L47/04 ,  F16L25/00

CPC分类号： F16L19/041 ,  F16L47/04 ,  Y10S285/906

摘要： The present invention relates to a pipe joint made of resin used for laying pipes in which a high-purity liquid, ultra pure water or the like flow. According to the pipe joint of the present invention, a sealing surface pressure is generated in both axial and radial directions, providing thereby an excellent sealing property for a long period, and facilitate controlling a torque for fastening a pushing ring. The pipe joint made of resin according to the present invention comprises a joint body having a receiving port, a cylindrical portion, an annular groove portion and a stepped surface. An inner ring forcedly inserted by the pushing ring is provided with an outer projection, an inner projection and an annular recessed portion. On at least one portion among axially opposed portions of each surface, an axial sealing portion is disposed. On at least one portion among radially opposed portions of each surface, an radial sealing portion is disposed. The joint body, the inner ring and the pushing ring are individually made of an optional synthetic resin selected among PFA, PTFE, ETFE, CTFE, and ECTFE.

摘要翻译： 本发明涉及用于铺设高纯度液体，超纯水等的管道的树脂管接头。 根据本发明的管接头，在轴向和径向都产生密封面压力，从而长时间地具有优异的密封性，并且便于控制用于紧固推环的扭矩。 根据本发明的由树脂制成的管接头包括具有接收端口，圆筒部分，环形槽部分和台阶表面的接头本体。 由推压环强制插入的内圈设置有外突起，内突起和环形凹部。 在每个表面的轴向相对部分中的至少一个部分上设置有轴向密封部分。 在每个表面的径向相对部分中的至少一个部分上设置径向密封部分。 接头体，内圈和推环分别由选自PFA，PTFE，ETFE，CTFE和ECTFE中的任选的合成树脂制成。