发明名称 |
Mold with porous cavity vent |
摘要 |
A mold for injection molding of long thin walled articles has precisely balanced high-volume venting of a narrow cavity space surrounding a long slender cantilevered core and minimized flash. The venting is provided by closing an end of the female mold cavity with a sintered metal plug and forming an end of the mold cavity in an end face of the plug.
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申请公布号 |
US4165062(A) |
申请公布日期 |
1979.08.21 |
申请号 |
US19780869059 |
申请日期 |
1978.01.13 |
申请人 |
CALIFORNIA INJECTION MOLDING CO., INC. |
发明人 |
MITCHELL, JOHN G. |
分类号 |
B29C45/34;(IPC1-7):B28B17/00 |
主分类号 |
B29C45/34 |
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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