| 摘要 |
<p>Animal-activated feeding systems that include a self-sealing valve assembly and a buoyant activation member restriction mechanism. The valve assembly is adapted to deliver a flow of liquid feed to a vessel from which an animal may drink. The valve assembly includes a valve body, which defines a feed flow path, a valve member, which is configured to selectively obstruct the feed flow path, and a feedflow activation member, which is coupled to the valve member. The activation member is positionable between a sealed position and a range of activated positions. The restriction mechanism is slidingly coupled to the activation member and positionable between a range of neutral positions and a range of engagement positions. In the range of neutral positions, the restriction mechanism permits activation of the activation member. In the range of engagement positions, the restriction mechanism is adapted to restrict at least further activation of the activation member.</p> |
