发明名称 |
METHOD AND APPARATUS FOR INSPECTING PINHOLE IN SYNTHETIC RESIN BOTTLE |
摘要 |
Provided is a pinhole inspecting method for suitably inspecting a pinhole in a bottle compared with conventional pinhole inspection. A reference inner pressure (P 1 ) is a bottle inner pressure obtained directly after closing a supply valve (3) after opening the supply valve (3) for only a predetermined time. Whether the reference inner pressure (P 1) is over a previously specified first threshold value (P th1 ) or not is checked, and when it exceeds the first threshold value (P th1 ), airtight status of the bottle is held for a predetermined time, and then a pressure reduction quantity (”P) of the bottle inner pressure from the reference inner pressure is measured after a fixed time. The bottle is judged to have no pinholes only when the value of ”P is not exceeding the previously specified second threshold value (”P th2 ).
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申请公布号 |
EP2213997(A1) |
申请公布日期 |
2010.08.04 |
申请号 |
EP20080845905 |
申请日期 |
2008.10.29 |
申请人 |
TOYO SEIKAN KAISHA, LTD. |
发明人 |
MATSUSHITA, YOUSUKE;SAWANE, NOBORU;OOBUCHI, YASUSHI |
分类号 |
G01M3/26;G01M3/32 |
主分类号 |
G01M3/26 |
代理机构 |
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