| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vertical type vacuum investing receptacle for dental use which prevents the occurrence of defective castings during investment for dental casting. <P>SOLUTION: The vertical type vacuum investing receptacle for dental use comprises a sealable lower space (2) for receiving an investing ring and a sealable upper space (1) having a rotary wing on its rid for mixing dental investment and water. The lower space and the upper space are connected via an aperture and an opening and closing valve (6) is provided for opening and closing the aperture to connect and vacuum the lower space (2) and the upper space (1) by suction. <P>COPYRIGHT: (C)2004,JPO</p> |
