发明授权
- 专利标题： Apparatus for clearing a cellulose ester filter
- 专利标题（中）： 清除纤维素酯过滤器的设备
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申请号： US96726申请日： 1987-09-14
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公开(公告)号： US4831236A公开(公告)日： 1989-05-16
- 发明人: Henry P. Lentz , Larry R. Delaney , Charles J. Matone, Jr. , Richard J. Lee , Dan H. Lang
- 申请人： Henry P. Lentz , Larry R. Delaney , Charles J. Matone, Jr. , Richard J. Lee , Dan H. Lang
- 申请人地址： PA Monroeville
- 专利权人： RJ Lee Group, Inc.
- 当前专利权人： RJ Lee Group, Inc.
- 当前专利权人地址： PA Monroeville
- 主分类号： B01D67/00
- IPC分类号： B01D67/00 ; G01N1/31 ; G02B27/00
摘要：
An apparatus for acetone clearing of cellulose or nitrate membrane filters includes an elongated electric heater element with tubing for transporting acetone coiled around said heater element and in contact therewith. Liquid acetone is introduced to said tubing wherein it is heated by said heater element and acetone vapor is discharged from said tubing. The temperature of the coiled tubing is thermostatically controlled. Acetone vapor is removed from said tubing and passed over a glass slide having an exposed filter containing particulars, such as asbestos fibers. The vapors clear the filter to render it translucent for examination in optical microscopy.
公开/授权文献
- US6081278A Animation object having multiple resolution format 公开/授权日：2000-06-27
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