发明名称 |
Check valve with preset cracking pressure |
摘要 |
A check valve is disclosed having a preset cracking pressure. The check valve comprises a valve element reciprocatably positioned within a valve body, both the valve body and the valve element including valve seats which seal together when the valve element is urged forwardly within the valve body. A plug is positioned within the rear of the valve body to constantly urge the valve element forwardly thereby defining a cracking pressure necessary to unseat the valve seats allowing the flow of fluid through the valve body.
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申请公布号 |
US4681132(A) |
申请公布日期 |
1987.07.21 |
申请号 |
US19860867319 |
申请日期 |
1986.05.23 |
申请人 |
HALKEY-ROBERTS CORPORATION |
发明人 |
LARDNER, GEORGE E. |
分类号 |
A61M39/24;F16K15/02;F16K17/02;(IPC1-7):F16K15/14 |
主分类号 |
A61M39/24 |
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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