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公开(公告)号：US4291213A
公开(公告)日：1981-09-22
申请号：US189479
申请日：1980-09-22
CPC分类号： H01H3/04
摘要： A lever operated switch actuator has a resilient lever secured at its lower end to a bracket and having a control knob at its upper end. The bracket is secured to a supporting surface. A pair of switches having plungers are secured to the bracket on opposite sides of the lever. A lever stop member is secured to the bracket and has stops positioned on opposite sides of the lever and immediately above the switch plungers. The stops of the lever stop member are adjustable with respect to the switch plungers. The lever can be manually grasped at the control knob and deflected forwardly or rearwardly to depress a plunger which activates a switch. A lever stop contacts the lever once a plunger is depressed.
摘要翻译： 杆操作开关致动器具有弹性杆，其弹性杆在其下端固定到支架并且在其上端具有控制旋钮。 支架固定在支撑面上。 具有柱塞的一对开关在杠杆的相对侧固定到支架上。 杠杆止动构件固定到支架上，并且具有位于杠杆的相对侧上并且紧靠在开关柱塞上方的止动件。 杠杆止动件的止动件相对于开关柱塞是可调节的。 杠杆可以在控制旋钮处手动抓住并向前或向后偏转，以压下一个激活开关的柱塞。 一旦一个柱塞被压下，一个杠杆止动器就会接触到杠杆。
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公开(公告)号：US4741364A
公开(公告)日：1988-05-03
申请号：US60880
申请日：1987-06-12
IPC分类号： F16K31/42 , F15B13/00 , F15B13/04 , F15B13/042 , G05D16/20 , F15B13/043
CPC分类号： F15B13/0435 , F15B13/0402 , F15B13/042 , F15B13/0433 , G05D16/2093 , F15B2013/004 , Y10T137/86582 , Y10T137/86614
摘要： A pilot-operated electrohydraulic valve has a pilot valve member exposed to load pressure via a load pressure feedback passage. Part of the pilot valve member forms a feedback valve which closes communication through the feedback passage upon a predetermined movement of the pilot valve so that the pilot valve can be fully opened without having to overcome the load pressure which would otherwise act on the pilot valve.
摘要翻译： 先导式电动液压阀具有通过负载压力反馈通道暴露于负载压力的先导阀构件。 先导阀构件的一部分形成反馈阀，该反馈阀在先导阀的预定运动时闭合通过反馈通道的连通，使得先导阀可以完全打开，而不必克服否则将作用在先导阀上的负载压力。
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