发明名称 |
CHECK VALVE ACCESS CHAMBER |
摘要 |
A check valve access chamber is provided that is capable of forming a sealed enclosure against or around a self-contained check valve assembly so as to maintain a continuous barrier against moisture, waste water, and sewage gases during normal operation or under backflow situations. The access chamber may also include an angled floor and/or angled pipe flanges to add or maintain a grade across the sewer pipe or the self-contained check valve assembly to ensure adequate flow to meet or exceed building code standards. Access chambers of this type permit a labour-saving method of installing a check valve comprising the steps of connecting an access chamber having an access sleeve to a self-contained check valve assembly; connecting the self-contained check valve assembly to an inlet pipe and an outlet pipe; backfilling around the access chamber to a desired grade; and trimming the access sleeve to a desired height relative to the desired grade.
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申请公布号 |
US2012255628(A1) |
申请公布日期 |
2012.10.11 |
申请号 |
US201213440739 |
申请日期 |
2012.04.05 |
申请人 |
POURZYNAL PAYK;GIRIMONTE MARK;HENDERSON JAMES;BAILEY KEVIN J.;BACK WATER BOOT INC. |
发明人 |
POURZYNAL PAYK;GIRIMONTE MARK;HENDERSON JAMES;BAILEY KEVIN J. |
分类号 |
E03F7/04;F16K51/00 |
主分类号 |
E03F7/04 |
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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