发明名称 |
Composite gasket and fitting including same |
摘要 |
A composite gasket for forming a seal between a pipe bell 52 and a spigot 58 comprises a major portion 12 of non-elastomeric plastic material and a minor portion 14 of elastomeric material. The minor portion is axially encased by the major portion. The minor portion includes a sealing lip 16 extending radially inwardly from the major portion. The composite gasket can be manually inserted within a preformed grooved bell or the grooved bell can be formed over the gasket while the gasket is mounted on a mandrel.
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申请公布号 |
US4637618(A) |
申请公布日期 |
1987.01.20 |
申请号 |
US19840630527 |
申请日期 |
1984.07.13 |
申请人 |
VASSALLO RESEARCH & DEVELOPMENT CORPORATION |
发明人 |
VALLS, JOSE E. |
分类号 |
F16L17/03;F16L47/10;(IPC1-7):F16J15/10;F16L19/07 |
主分类号 |
F16L17/03 |
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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