公开(公告)号：US4274561A

公开(公告)日：1981-06-23

申请号：US79223

申请日：1979-09-26

申请人： Morgan Andersson

发明人： Morgan Andersson

IPC分类号： F16N3/12 ,  F04B9/127 ,  F16N11/10 ,  G01F11/00

CPC分类号： F16N11/10 ,  F04B9/127

摘要： A compressed-air operated dispenser for continuously dispensing a substance enclosed in a container, and in particular a viscous or paste-like substance, comprising an outlet passage extending from container to an outlet; a valve which normally closes the passage; a compressed-air operated piston arranged to exert pressure on a substance in the passage and to open the valve; and a trigger means for initiating the supply of compressed air for the purpose of operating said piston.In accordance with the invention there is provided a second valve arranged to move the piston to a starting position in which a pressure-actuating chamber is closed on one side of the piston with the exception of a passage through which compressed air can be forced into the chamber to cause the piston to move to a first terminal position. In this position the substance is subjected to pressure and the valve is opened and the piston ceases to act on the second valve. An air-return passage is opened to cause the second valve to be moved to a second position, in which an exhaust hole for compressed air in said chamber is placed in communication with atmosphere and the piston returns to a second terminal position in which it causes the second valve to return to its starting position.

摘要翻译： 一种压缩空气操作的分配器，用于连续分配容纳在容器中的物质，特别是粘性或糊状物质，包括从容器延伸到出口的出口通道; 通常关闭通道的阀门; 压缩空气操作的活塞，其布置成对所述通道中的物质施加压力并打开所述阀; 以及用于开始供应压缩空气以用于操作所述活塞的触发装置。 根据本发明，提供了一种第二阀，其布置成将活塞移动到起动位置，在该起始位置中，压力致动室在活塞的一侧封闭，除了压缩空气可以通过该通道被迫进入 以使活塞移动到第一终端位置。 在该位置，物质受到压力，阀被打开，活塞停止作用在第二阀上。 打开空气回流通道，使第二阀移动到第二位置，在该第二位置，与所述室内的压缩空气排放孔相连通，并且活塞返回到第二位置 第二个阀返回到其起始位置。