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专利名称：Sump assembly发明人：Rodney E. Brancher申请号：US08/108537申请日：19930819公开号：US05366318A公开日：19941122
摘要：The present invention involves a flexible annular member passing through a wallopening. The flexible annular member is positioned about a conduit passing through thewall opening to enable the conduit to pass through the wall at an angle up to and evengreater than 30°. Another embodiment of the present invention comprises a flange typeriser and base connection involving the location of the entire sealing assembly within achamber base/riser section.
申请人：ENVIRON PRODUCTS, INC.
代理人：Eugene E. Renz, Jr.
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