发明名称 |
Plastic closure with structural thread formation |
摘要 |
A plastic closure for use on a container having an externally threaded neck is disclosed wherein the skirt portion of the closure cap includes an internal structural thread formation. The structural thread formation comprises a helical thread ramp portion which is configured for load-bearing engagement with the thread of the associated container, and further includes means for reinforcing the thread ramp portion, in the form of a plurality of spaced-apart reinforcing gussets. The provision of the structural thread formation desirably facilitates high-speed molding of the closure, and desirably acts to reduce the quantity of plastic material required for molding the closure.
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申请公布号 |
US4674643(A) |
申请公布日期 |
1987.06.23 |
申请号 |
US19860841864 |
申请日期 |
1986.03.20 |
申请人 |
H-C INDUSTRIES, INC. |
发明人 |
WILDE, SHELDON L.;MORTON, JR., HUGH V. |
分类号 |
B65D41/04;B65D41/34;B65D51/16;(IPC1-7):B65D41/34 |
主分类号 |
B65D41/04 |
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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