| 摘要 |
<p>An apparatus is disclosed for forming an intermittent stream of fluid which is directed onto a target. Pressurized fluid from a manifold passes through a bore or similar stream-forming device which faces the target. Extending over the stream path, in cantilevered fashion, is a resilient reed which is operably associated with a plunger. When the plunger is in a retracted position, the cantilevered reed does not interfer with passage of the stream. When the plunger is extended, however, the free end portion of the cantilevered reed is urged into the path of the stream and prevents the stream from striking the target. A barrier is provided for containing the disrupted stream.</p> |
