| 摘要 |
<p>A vacuum chip removal apparatus (2) wherein a damper valve (12) is included in combination with chip hopper doors (22) whereby the damper valve operates to close off air flow through the apparatus, thus eliminating a vacuum, prior to chip hopper doors being opened to discharge chips from the apparatus. With vacuum eliminated, outside air will not rush in through the hopper doors to disrupt chips in the hopper (8) and potentially harm components of the vacuum apparatus. Once chips are emptied from the hopper (8), the hopper doors (22) are closed and the damper (12) is then opened to restore vacuum to the entire chip removal apparatus (2).</p> |
