发明名称 |
Guided non-ported expanding gate valve and method |
摘要 |
A non-ported expanding gate valve and method of use, including an expanding gate assembly and a slotted guide, is fixedly positioned on the valve body and slidably coupled with a gate assembly. The guide has slots of varying widths that are used with a pivoting rocker arm coupled with the gate assembly to adjust the thickness of the gate assembly at the proper timing. The guides perform multiple functions, including: centralizing a rocker arm during opening between seats; collapsing the gate assembly when opening; allowing and controlling expansion when closing; guiding lateral movement during operation of the gate assembly between opposing guides on the sides of a flow passageway; guiding axial movement during operation of the gate assembly between opposing guide side flanges; retaining seats in position when the valve is open; and/or stiffening the guide in a lateral direction to control movement of the gate assembly. |
申请公布号 |
US8297590(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20100701258 |
申请日期 |
2010.02.05 |
申请人 |
ARRIENS, JR. FRANK J.;GODARE WILLIAM L.;T-3 PROPERTY HOLDINGS, INC. |
发明人 |
ARRIENS, JR. FRANK J.;GODARE WILLIAM L. |
分类号 |
F16K25/00 |
主分类号 |
F16K25/00 |
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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