发明名称 |
METERING AND DISPENSING SYSTEM |
摘要 |
<p>A method and apparatus for dispersing an active ingredient, such as a POUND umigant, fertilizer or room freshener. The active ingredient is placed in a container (13) and a pressurised solvent/propellent is subsequently introduced from a source (11). The solvent/propellent expands to adopt a liquid phase and a gaseous phase. The liquid phase serves to absorb the active ingredient and the gaseous phase serves to propel the borne active ingredient out of the apparatus through a dispensing outlet (14) where further expansion takes place and the active ingredient is dispersed in a fog or mist. Check valves (15, 16) create a pressure differential between the sample cylinder outlet (23) and a by-pass portion (22) to enable total absorption of the active ingredient. The system is particulary suitable for the spraying of insecticides where a metered amount of active ingredient is to be dispersed or for exhausting a total supply of active ingredient.</p> |
申请公布号 |
AU6555790(A) |
申请公布日期 |
1991.05.02 |
申请号 |
AU19900065557 |
申请日期 |
1990.10.26 |
申请人 |
THE WELLCOME FOUNDATION LIMITED |
发明人 |
JOSEPH GEORGE EITNER JR.;ROBERT JOSEPH TICE JR. |
分类号 |
A01M1/20;A01M13/00;B05B7/32 |
主分类号 |
A01M1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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