公开(公告)号：US5225641A

公开(公告)日：1993-07-06

申请号：US903411

申请日：1992-06-24

申请人： Rodney C. Weld ,  Richard A. Zander

发明人： Rodney C. Weld ,  Richard A. Zander

IPC分类号： H01H35/38 ,  H01H35/40

CPC分类号： H01H35/40 ,  H01H35/38

摘要： The flow switch assembly (10) of a fluid power apparatus comprises a fluid flow pressure operated switch (10) which activates upon the failure or degradation of fluid flow. A body (14) contains therein a blind bore (15) which receives a piston (71) biased by a spring (17) located at the bottom (13) of the bore (15). A switch housing (11) which is molded about a contact (20) is threadedly inserted into an open threaded end (16) of the bore (15). The bore (15) communicates with a fluid flow opening such that fluid pressure causes the piston (71) to retract against the spring (17). The contact (20) extends axially beyond a wall (11A) of the switch housing (11) such that a radially enlarged portion (21) provides a seat for a seal (30) which sealingly engages the radially enlarged portion (21) and a surface of the bore (15). If fluid flow should cease or fall below a predetermined pressure level, the piston (71) is displaced by the spring (17) and engages the contact (20) to complete a circuit and energize an electric motor pump which provides fluid pressure to the associated fluid power apparatus.

摘要翻译： 流体动力设备的流量开关组件（10）包括流体流动压力操作的开关（10），其在流体流动的故障或劣化时启动。 主体（14）中包含盲孔（15），该盲孔容纳由位于孔（15）的底部（13）处的弹簧（17）偏置的活塞（71）。 围绕触头（20）模制的开关壳体（11）被螺纹地插入孔（15）的开放的螺纹端部（16）中。 孔（15）与流体流动开口连通，使得流体压力使得活塞（71）抵靠弹簧（17）缩回。 接触件（20）轴向地延伸超过开关壳体（11）的壁（11A），使得径向扩大部分（21）提供用于密封地接合径向扩大部分（21）的密封件（30）的座和 孔（15）的表面。 如果流体流动停止或降低到预定的压力水平以下，则活塞（71）被弹簧（17）移动并与接触件（20）接合，以完成电路并给电动泵提供动力，该电机泵向相关联的 流体动力装置。

公开(公告)号：US5142965A

公开(公告)日：1992-09-01

申请号：US751430

申请日：1991-08-28

申请人： Richard A. Zander

发明人： Richard A. Zander

IPC分类号： B60T11/16 ,  B60T11/20

CPC分类号： B60T11/20

摘要： The master cylinder piston retaining member (90, 190) comprises either a flexible, ribbed bellows type member (190) or a nonflexible member (90) attached at one end of the master cylinder (10) in order to retain the primary piston (30) within the master cylinder (10). A cartridge master cylinder (10) having an end member (18) attached at one end (16) and retaining a sleeve member (20) within the bore (14), includes a pair of pistons (30, 40) with one piston (30) biased by a top hat construction (50) comprising one member (52) telescopically and slidable received within the other member (54) and having a spring (55) extending therebetween so that the maximum expansion of the spring (55) is limited. The primary piston (30) of the master cylinder (10) is positioned within an opening (26) of the end member (18). The piston retaining member (90, 190) is seated at one end within the end member (18) in order to be attached therewith and at the other end includes a radially inwardly extending flange (91, 191) which engages an axial end (31) of the primary piston (30) in order to limit by a predetermined amount the position of the primary piston (30) relative to the master cylinder (10). The piston retaining member (b 90, 190) enables a previously used top hat construction for the secondary piston (40) to be replaced with merely a spring (56).

摘要翻译： 主缸活塞保持构件（90,190）包括柔性肋状波纹管型构件（190）或附接在主缸（10）的一端处的不柔性构件（90），以便将主活塞（30 ）在主缸（10）内。 具有附接在一端（16）并将套筒构件（20）保持在孔（14）内的端部构件（18）的盒式母缸（10）包括一对具有一个活塞的活塞（30,40） 30），其由包括一个构件（52）的顶帽构造（50）可伸缩地并滑动地容纳在另一构件（54）内并且具有在其间延伸的弹簧（55），使得弹簧（55）的最大膨胀受到限制 。 主缸（10）的主活塞（30）位于端部构件（18）的开口（26）内。 活塞保持构件（90,190）位于端构件（18）内的一端，以便与其连接，并且另一端包括径向向内延伸的凸缘（91,191），该凸缘接合轴向端部 ），以便限制主活塞（30）相对于主缸（10）的位置的预定量。 活塞保持构件（b 90,190）能够仅使用弹簧（56）来替换用于次级活塞（40）的先前使用的顶帽构造。

公开(公告)号：US4311039A

公开(公告)日：1982-01-19

申请号：US093996

申请日：1979-11-14

申请人： Mark E. Koehler ,  Theodore Provder ,  Richard A. Zander

发明人： Mark E. Koehler ,  Theodore Provder ,  Richard A. Zander

IPC分类号： G01N15/04 ,  G01N15/02

CPC分类号： G01N15/042

摘要： An apparatus is provided which is characterized by a motor, a transmission, e.g., a continuously variable ratio friction transmission, and apparatus for interrupting power to the motor for a precise interval of time. A particular utilization of this device is for a photosedimentometer to enable more accurate determinations of particle size and size distribution.

摘要翻译： 提供了一种装置，其特征在于电动机，变速器，例如无级变速比摩擦传动装置，以及用于在精确的间隔时间内中断对电动机的动力的装置。 该设备的特别利用是使光度计能够更精确地确定粒度和尺寸分布。