| 摘要 |
<p>The hand-held spray gun, has a holding chamber for the material, with a conductive plate. There is a power source with a piezo electric crystal. When the power source is operated, a channel carries the electric charge from the power source to the conductive plate and charges the material. There is an opening in the material store chamber for the charged material to pass through in a spray when forced by the electric field. The design requires no batteries which can run down, and is not connected to the electric mains so that it is light and portable.</p> |
