发明名称 |
A FLOW RESTRICTION DETECTOR FOR A NOZZLE ASSEMBLY |
摘要 |
<p>A flow restriction detector for a nozzle assembly of a liquid dispensing machine is capable of detecting a blocked or partially blocked nozzle during the cleaning of the nozzle assembly. During nozzle cleaning, a return plate is attached to the nozzle plate of the nozzle assembly to receive a flow of pressurized fluid from the nozzles. Both the inlet and return fluid lines are provided with pressure sensors, and the return line has a constant back pressure applied to it so that the differential between the inlet and return line pressure sensors is in the range 5-10 psi. The pressure differential is monitored during cleaning and from one cleaning to the next for the purpose of identifying a blocked or partially blocked nozzle. A change of as little as 5% from the pressure differential value established for an unblocked system may indicate a partial blockage of a nozzle.</p> |
申请公布号 |
CA2156479(C) |
申请公布日期 |
1998.12.15 |
申请号 |
CA19952156479 |
申请日期 |
1995.08.18 |
申请人 |
PURITY PACKAGING, A DIVISION OF GREAT PACIFIC ENTERPRISES |
发明人 |
KELBRICK, WILLIAM J.;ERNST, PETER A. A. |
分类号 |
B08B9/032;G01P13/00;(IPC1-7):B65B39/00;G01F1/36;B65B57/10;G01F1/34;G01F1/42 |
主分类号 |
B08B9/032 |
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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