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公开(公告)号：US4839474A
公开(公告)日：1989-06-13
申请号：US131630
申请日：1987-12-10
IPC分类号： H01H13/70 , H01H13/702
CPC分类号： H01H13/702 , H01H2203/024 , H01H2209/006 , H01H2209/032 , H01H2209/082 , H01H2215/008 , H01H2217/006 , H01H2217/01 , H01H2219/014 , H01H2219/04 , H01H2219/0622 , H01H2223/002 , H01H2223/01 , H01H2223/0345 , H01H2227/004 , H01H2227/02 , H01H2227/022 , H01H2229/024 , H01H2229/042
摘要： A low profile switch or keypad has one or more touch buttons of circular or polygonal shape in plan formed integrally with and raised from a surrounding membrane of elastomeric material by a wall of resiliently deformable material of thickness and angle relative to the membrane so that the wall can flex under finger pressure on the or each button without deflecting the surrounding membrane. The membrane and at least the periphery of the button are relatively thick and the wall is relatively thin so that deformation during the keystroke is localized in the wall. The length of the wall is about equal to the keystroke and is relatively small compared to the width of the touch button. The junction between the wall and the membrane is located a distance greater than the keystroke above the lower surfaces of the membrane so that the wall passes overcenter during the keystroke resulting in a change in tactile sensation. The underside of each touch button is preferably formed with a convex contact pad dimensioned in relation to the button diameter and travel and the length of wall so that the contact pad makes surface to surface contact with conductors of an underlying circuit board.
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公开(公告)号：US4634818A
公开(公告)日：1987-01-06
申请号：US783927
申请日：1985-09-26
IPC分类号： H01H13/70 , H01H13/702
CPC分类号： H01H13/702 , H01H2203/024 , H01H2209/006 , H01H2209/032 , H01H2209/082 , H01H2215/008 , H01H2217/006 , H01H2217/01 , H01H2219/014 , H01H2219/04 , H01H2219/0622 , H01H2223/002 , H01H2223/01 , H01H2223/0345 , H01H2227/004 , H01H2227/02 , H01H2227/022 , H01H2229/024 , H01H2229/042
摘要： A low profile switch or keypad has one or more touch pads (14) formed integrally with and raised from a surrounding membrane or key mat (15) of elastomeric material by a wall (30) of resiliently deformable material of thickness and angle relative to the mat (15) so that the wall (30) can flex under finger pressure on the or each pad (14) without deflecting the surrounding membrane. The underside of each pad (14) is formed with a convex contact pad (29) dimensioned in relation to the pad diameter and travel and the length of wall (30) so that the pad (29) makes surface to surface contact with conductors (12), (13) of an underlying circuit board (10). The mat (15) is held in tension to the board (10) fits. The keyboard uses only two interfitting parts and needs no bezel but provides a tactile response to key depression.
摘要翻译： PCT No.PCT / GB85 / 00049 Sec。 371日期：1985年9月26日 102（e）1985年9月26日PCT PCT公布1985年2月4日PCT公布。 公开号WO85 / 03595 日期为1985年8月15日。低调开关或小键盘具有一个或多个触摸板（14），该触摸板通过可弹性变形的材料的壁（30）与弹性体材料的周围隔膜或键垫（15）整体形成并升起 相对于垫（15）的厚度和角度，使得壁（30）可以在手指压力下在所述垫或每个垫（14）上弯曲，而不会偏转周围的膜。 每个焊盘（14）的下侧形成有相对于焊盘直径和行程以及壁（30）的长度尺寸设定的凸接触焊盘（29），使得焊盘（29）与导体（表面与表面）接触 12），（13）的底层电路板（10）。 垫子（15）保持张紧到板（10）上。 键盘只使用两个相互配合的部件，不需要挡板，而是提供对按键抑制的触觉响应。
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公开(公告)号：US07674100B2
公开(公告)日：2010-03-09
申请号：US11069043
申请日：2005-03-02
CPC分类号： F04C14/26 , A61M5/14232 , A61M5/14236 , B67D1/10 , F04C2/22 , F04C2/3566 , F04C5/00 , F04C11/001 , F04C13/00 , F04C15/0015
摘要： A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around the path of the rotor (15) in the housing. The rotor (15) has surfaces (16a, 16b, 16c, 16d) that form, with the housing (10), closed chambers (18a, 18b, 18c, 18d) which travel around the housing (10) to convey fluid from the inlet (11) to the outlet (12). The housing (10) carries a seal (14) that is located between the inlet (11) and the outlet (12) in the direction of travel of the rotor (15). The seal (14) co-operates with the rotor surfaces (16a, 16b, 16c, 16d) as the surfaces (16a, 16b, 16c, 16d) pass between the outlet (12) and the inlet (11) to prevent the formation of a chamber during said passage and so prevent fluid flow from the outlet (12) to the inlet (11). Such a pump is easily and cheaply produced and is particularly useful in medical applications.
摘要翻译： 泵由具有用于连接到流体源的入口（11）和用于泵送流体的出口（12）的壳体（10）形成。 转子（15）可在壳体内旋转，并且入口（11）和出口（12）围绕壳体中的转子（15）的路径间隔开。 转子（15）具有与壳体（10）形成封闭腔（18a，18b，18c，18d）的表面（16a，16b，16c，16d），其围绕壳体（10）运动以将流体从 入口（11）到出口（12）。 壳体（10）沿着转子（15）的行进方向承载位于入口（11）和出口（12）之间的密封件（14）。 随着表面（16a，16b，16c，16d）在出口（12）和入口（11）之间通过，密封件（14）与转子表面（16a，16b，16c，16d）协作，以防止形成 并且因此防止流体从出口（12）流到入口（11）。 这种泵容易且廉价地生产，并且在医疗应用中特别有用。
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公开(公告)号：USRE44841E1
公开(公告)日：2014-04-15
申请号：US13449985
申请日：2012-04-18
CPC分类号： F04C14/26 , A61M5/14232 , A61M5/14236 , B67D1/10 , F04C2/22 , F04C2/3566 , F04C5/00 , F04C11/001 , F04C13/00 , F04C15/0015
摘要： A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around the path of the rotor (15) in the housing. The rotor (15) has surfaces (16a, 16b, 16c, 16d) that form, with the housing (10), closed chambers (18a, 18b, 18c, 18d) which travel around the housing (10) to convey fluid from the inlet (11) to the outlet (12). The housing (10) carries a seal (14) that is located between the inlet (11) and the outlet (12) in the direction of travel of the rotor (15). The seal (14) co-operates with the rotor surfaces (16a, 16b, 16c, 16d) as the surfaces (16a, 16b, 16c, 16d) pass between the outlet (12) and the inlet (11) to prevent the formation of a chamber during said passage and so prevent fluid flow from the outlet (12) to the inlet (11). Such a pump is easily and cheaply produced and is particularly useful in medical applications.
摘要翻译： 泵由具有用于连接到流体源的入口（11）和用于泵送流体的出口（12）的壳体（10）形成。 转子（15）可在壳体内旋转，并且入口（11）和出口（12）围绕壳体中的转子（15）的路径间隔开。 转子（15）具有与壳体（10）形成封闭腔（18a，18b，18c，18d）的表面（16a，16b，16c，16d），其围绕壳体（10）运动以将流体从 入口（11）到出口（12）。 壳体（10）沿着转子（15）的行进方向承载位于入口（11）和出口（12）之间的密封件（14）。 随着表面（16a，16b，16c，16d）在出口（12）和入口（11）之间通过，密封件（14）与转子表面（16a，16b，16c，16d）协作，以防止形成 并且因此防止流体从出口（12）流到入口（11）。 这种泵容易且廉价地生产，并且在医疗应用中特别有用。
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公开(公告)号：USD340133S
公开(公告)日：1993-10-12
申请号：US731082
申请日：1991-07-17
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