| 摘要 |
<p>An apparatus for delivering fluid with a relatively constant, controlled rate of flow comprises a vacuum power means (11), a fluid storage means (12) in axial alignment with the vacuum power means and a plunger means (21) carried by the vacuum power means and in axial communication with the fluid storage means. The plunger means is driven by a vacuum which collapses under atmospheric pressure, and as it is driven it effects delivery of the fluid from the fluid storage means.</p> |
