| 摘要 |
<p>The powder doser is for drinks and has a powder container. Inside, there is a moving bowl, closed by a valve. Movement of the bowl gives simultaneous closing of the powder entry from the container and opening of the bowl valve. The valve is held closed by a spring. The bowl moves horizontally and perpendicular to the neck. When the bowl is moved by a knob it is closed by a plate, at the same time as a stop opens the valve. There is a bowl return spring.</p> |
