| 摘要 |
<p>A hydraulic-pneumatic control device characterized by a narrow elongated supply strip having a plurality of channels extending parallel to a longitudinal axis of the strip, a plurality of separate groups of openings spaced along the strip with each group having an opening in communication with each channel, a connecting block having a plurality of separate passages mounted on the strip with the passages in communication with the channels and a control block for each of the dental apparatuses whose agents are being regulated. Each of the control blocks is mounted on the separate group of openings of the supply strip for receiving agents from the channels therein and each block has pneumatically actuated valves for regulating the flow of the agent therethrough.</p> |
