公开(公告)号：US5002468A

公开(公告)日：1991-03-26

申请号：US306454

申请日：1989-01-25

申请人： Minoru Murata ,  Kazumasa Yamada

发明人： Minoru Murata ,  Kazumasa Yamada

IPC分类号： F01L21/04 ,  F01L23/00 ,  F01L31/02 ,  F04B9/08 ,  F04B9/125 ,  F04B43/073 ,  F15B11/15 ,  F16K31/56

CPC分类号： F01L31/02 ,  F01L21/04 ,  F01L23/00 ,  F04B43/0736 ,  F04B9/125 ,  F04B9/1253 ,  F16K31/566

摘要： The objective of the present invention is to provide a reciprocation switching device for a pump which will solve problems of conventional devices such as that, because coil springs are used for activating by their snap action valve operators or switching operators serving to control the pressure of pump working fluid in relation to reciprocating action of the pump, such devices require the numerous number of parts including spring fitting shafts, the structure to attach such fitting shafts, parts for spring holders, etc.; and that the assembling of those parts is troublesome. A device according to the present invention uses one or two wire springs made into a C-like shape as the springs for the aforementioned purpose and calls for fitting said springs directly between the spring fitting sections(s) and the valve operator or the switching operator.

公开(公告)号：US4923168A

公开(公告)日：1990-05-08

申请号：US309667

申请日：1989-01-31

申请人： Minoru Murata ,  Kazumasa Yamada

发明人： Minoru Murata ,  Kazumasa Yamada

IPC分类号： F16K11/07 ,  F16K31/56 ,  G05G1/00 ,  G05G5/06

CPC分类号： F16K31/566 ,  F16K11/0704 ,  Y10T137/8663

摘要： A spool type switching valve to be used for the switching operation of a diaphragm pump or a similar device, which simultaneously insures both preventing abrasion of the detent mechanism and obtaining thorough operation of switching the spool. A spool is movably fitted inside a sleeve and is prevented from standing still at a neutral point by a detent mechanism provided at one of its ends. The detent mechanism comprises a spool operator fitted around a shaft section at one end of the spool as one body, a spring holder at the end of the sleeve retains a pair of C-shaped wire springs of a circular cross-section fitted between the spool operator and the spring holder. As the spool passes the neutral point, spring forces snap the spool to the extremity of its range, thereby preventing stopping of the spool in the neutral position. An axial clearance permits the spool operator to begin moving before the spool moves.

公开(公告)号：US5120202A

公开(公告)日：1992-06-09

申请号：US547913

申请日：1990-07-03

申请人： Minoru Murata ,  Kazumasa Yamada

发明人： Minoru Murata ,  Kazumasa Yamada

IPC分类号： F01L21/04 ,  F01L23/00 ,  F04B9/125 ,  F04B43/073 ,  F16K31/56

CPC分类号： F16K31/566 ,  F01L21/04 ,  F01L23/00 ,  F04B43/0736 ,  F04B9/125

摘要： The objective of the present invention is to provide a reciprocation switching device for a pump which will solve problems of conventional devices such as that, because coil springs are used for activating by their snap action valve operators or switching operators serving to control the pressure of pump working fluid in relation to reciprocating action of the pump, such devices require the numerous number of parts including spring fitting shafts, the structure to attach such fitting shafts, parts for spring holders, etc.; and that the assembling of those parts is troublesome. A device according to the present invention uses one or two wire springs made into a C-like shape as the springs for the aforementioned purpose and calls for fitting said springs directly between the spring fitting section(s) and the valve operator or the switching operator.

摘要翻译： 本发明的目的是提供一种用于泵的往复切换装置，其将解决常规装置的问题，例如因为螺旋弹簧用于通过其快动阀操作者或用于控制泵的压力的切换操作器 工作流体相对于泵的往复运动，这样的装置需要许多数量的部件，包括弹簧装配轴，用于连接这种装配轴的结构，用于弹簧座的零件等; 并且这些部件的组装是麻烦的。 根据本发明的装置使用一个或两个制成C形的钢丝弹簧作为弹簧用于上述目的，并且要求将弹簧直接装配在弹簧配件部分和阀门操作者或切换操作器之间 。

公开(公告)号：US5002469A

公开(公告)日：1991-03-26

申请号：US493004

申请日：1990-03-13

申请人： Minoru Murata ,  Kazumasa Yamada

发明人： Minoru Murata ,  Kazumasa Yamada

IPC分类号： F01L21/04 ,  F01L23/00 ,  F04B9/125 ,  F04B43/073 ,  F16K31/56

CPC分类号： F01L21/04 ,  F01L23/00 ,  F04B43/0736 ,  F04B9/125 ,  F16K31/566

摘要： The objective of the present invention is to provide a reciprocation switching device for a pump which will solve problems of conventional devices such as that, because coil springs are used for activating by their snap action valve operators or switching operators serving to control the pressure of pump working fluid in relation to reciprocating action of the pump, such devices require the numerous number of parts including spring fitting shafts, the structure to attach such fitting shafts, parts for spring holders, etc.; and that the assembling of those parts is troublesome. A device according to the present invention uses one or two springs made into a C-like shape as the springs for the aforementioned purpose and calls for fitting said springs directly between the spring fitting section(s) and the valve operator or the switching operator.

摘要翻译： 本发明的目的是提供一种用于泵的往复切换装置，其将解决常规装置的问题，例如因为螺旋弹簧用于通过其快动阀操作者或用于控制泵的压力的切换操作器 工作流体相对于泵的往复运动，这样的装置需要许多数量的部件，包括弹簧装配轴，用于连接这种装配轴的结构，用于弹簧座的零件等; 并且这些部件的组装是麻烦的。 根据本发明的装置使用一个或两个制成C形的弹簧作为用于上述目的的弹簧，并且要求将弹簧直接装配在弹簧配件部分和阀操作者或切换操作者之间。

公开(公告)号：US06644940B2

公开(公告)日：2003-11-11

申请号：US10002284

申请日：2001-12-05

申请人： Kazumasa Yamada

发明人： Kazumasa Yamada

IPC分类号： F04B3502

CPC分类号： F04B43/0081 ,  F04B43/0736

摘要： A restarting device of a pump including a center rod defining fluid delivering chambers and driving chambers 11b and 12b. The restarting device of the pump further includes: a change-over valve 2 for switching a direction for the center rod to move, and a restarting hydraulic circuit 3 which, when a supply of the driving fluid from the change-over valve 2 to the driving chambers 11b and 12b in both sides is stopped, detects the supply of the driving fluid into the driving chambers 11b and 12b in both sides having been stopped and then causes the driving fluid to flow into the change-over valve, thereby restarting the supply of the driving fluid into the driving chambers 11b and 12b.

摘要翻译： 泵的重新启动装置，其包括限定流体输送室和驱动室11b和12b的中心杆。 泵的重启装置还包括：切换阀2，用于切换中心杆移动的方向;以及重启液压回路3，其将驱动流体从转换阀2供应到 两侧的驱动室11b，12b停止，检测到已经停止的两侧的驱动室11b，12b的驱动流体的供给，使驱动流体流入转换阀，从而重新开始供给 驱动流体进入驱动室11b和12b。

公开(公告)号：US6126403A

公开(公告)日：2000-10-03

申请号：US995830

申请日：1997-12-22

申请人： Kazumasa Yamada

发明人： Kazumasa Yamada

IPC分类号： F16K15/04 ,  F04B43/00 ,  F04B43/02 ,  F04B43/073 ,  F04B49/00

CPC分类号： F04B43/0081 ,  F04B43/073 ,  F04B43/0736 ,  F04B2201/0201 ,  F04B2203/10

摘要： A diaphragm pump is provided with a diaphragm defining a pump chamber and a drive chamber in the pump housing, a driving fluid is supplied to the drive chamber and a pump fluid is expelled from the pump chamber. The diaphragm pump is provided with pressure control means which, when the pressure in the pump chamber surpasses the pressure in the drive chamber neighboring the pump chamber across the diaphragm, controls the pressure of the driving fluid based upon output signals from pressure sensors in such a manner that the pressure in the fluid chamber will become higher than the pressure in the neighboring drive chamber. This makes it possible to prevent a diaphragm reversal phenomenon, wherein a diaphragm that should expand toward the pump chamber contracts toward the drive chamber instead during reciprocation of the diaphragm.

摘要翻译： 隔膜泵设置有在泵壳体中限定泵室和驱动室的隔膜，驱动流体被供应到驱动室并且泵流体从泵室排出。 隔膜泵设置有压力控制装置，当泵室中的压力超过邻近隔膜的泵室的驱动室中的压力时，基于来自压力传感器的输出信号控制驱动流体的压力 使得流体室中的压力将变得高于相邻驱动室中的压力。 这使得可以防止隔膜反转现象，其中在隔膜的往复运动期间，应朝向泵室膨胀的隔膜朝向驱动室收缩。

公开(公告)号：US5743169A

公开(公告)日：1998-04-28

申请号：US520828

申请日：1995-08-29

申请人： Kazumasa Yamada

发明人： Kazumasa Yamada

IPC分类号： F04B43/02 ,  B29C45/14 ,  F04C18/02 ,  F16J3/02 ,  F01B19/00

CPC分类号： F04C18/0246 ,  B29C45/14467 ,  F04C18/0269 ,  F16J3/02 ,  B29L2031/755 ,  Y10T29/494

摘要： A diaphragm assembly has a center disk in which use of a metal member is not required. The center disk comprises first and second center disk members, made of resin, embracing a resin diaphragm between them. The first center disk member has an inwardly directed inner flange on an inner peripheral wall defining a resin charging space, and the second center disk member comprises a resin-molded body, formed by charging a resin, and has an outwardly directed outer flange. A portion of the diaphragm is clamped between the inner flange and the outer flange.

摘要翻译： 隔膜组件具有不需要使用金属构件的中心盘。 中心盘包括由树脂制成的第一和第二中心盘构件，在其间包围树脂隔膜。 第一中心盘构件在限定树脂充电空间的内周壁上具有向内指向的内凸缘，第二中心盘构件包括通过充填树脂形成并具有向外指向的外凸缘的树脂模制体。 隔膜的一部分夹在内凸缘和外凸缘之间。

公开(公告)号：US20140178992A1

公开(公告)日：2014-06-26

申请号：US14008760

申请日：2012-03-30

申请人： Misako Nakashima ,  Koichiro Iohara ,  Kazumasa Yamada ,  Masaaki Shimagaki ,  Masahiro Osabe

发明人： Misako Nakashima ,  Koichiro Iohara ,  Kazumasa Yamada ,  Masaaki Shimagaki ,  Masahiro Osabe

IPC分类号： C12M1/00 ,  B05D1/18 ,  B05D3/06 ,  C12N5/0775

CPC分类号： C12M47/04 ,  B01D63/087 ,  B01D67/0093 ,  B01D71/50 ,  B01D2315/06 ,  B05D1/18 ,  B05D3/068 ,  C12M23/12 ,  C12M25/04 ,  C12M29/04 ,  C12N5/0663 ,  C12N5/0664 ,  C12N5/0667

摘要： A membrane separation culture device includes an upper structure including a vessel in which at least a portion of the bottom thereof is formed with a separation membrane having pores that allow stem cells to permeate therethrough, and a lower structure including a vessel that retains a fluid in which the membrane of the upper structure is immersed.

摘要翻译： 膜分离培养装置包括上部结构，其包括其中底部的至少一部分形成有具有允许干细胞渗透通过的孔的分离膜的容器，以及包括保持流体的容器的下部结构 其上部结构的膜被浸没。

公开(公告)号：US5758565A

公开(公告)日：1998-06-02

申请号：US902995

申请日：1997-07-30

申请人： Kazumasa Yamada

发明人： Kazumasa Yamada

IPC分类号： F04B43/02 ,  B29C45/14 ,  F04C18/02 ,  F16J3/02 ,  F01B29/00

CPC分类号： F04C18/0246 ,  B29C45/14467 ,  F04C18/0269 ,  F16J3/02 ,  B29L2031/755 ,  Y10T29/494

摘要： A diaphragm assembly has a center disk in which use of a metal member is not required. The center disk comprises first and second center disk members, made of resin, embracing a resin diaphragm between them. The first center disk member has an inwardly directed inner flange on an inner peripheral wall defining a resin charging space, and the second center disk member comprises a resin-molded body, formed by charging a resin, and has an outwardly directed outer flange. A portion of the diaphragm is clamped between the inner flange and the outer flange.

公开(公告)号：US4817503A

公开(公告)日：1989-04-04

申请号：US126445

申请日：1987-11-30

申请人： Kazumasa Yamada

发明人： Kazumasa Yamada

IPC分类号： F04B43/02 ,  F04B53/00 ,  F04B43/06

CPC分类号： F04B43/02 ,  F04B53/007

摘要： A pressure chamber of a diaphragm pump having an outer chamber improved so that it is free from stress concentration. The inner wall surface of the pressure chamber is recessed in a mero-spherical shape. In order to support this chamber wall from its rear side, an outer ring rib is provided along the outermost periphery of the outer surface of the chamber, and an inner ring rib is circumferentially disposed at the inner side of the outer ring rib. Further, radial ribs are provided so as to connect together the outer and inner ring ribs in the radial direction.