利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.013 秒)

    Pitless well adapter
    6.
    发明授权
    Pitless well adapter 失效

    公开(公告)号：US3561796A

    公开(公告)日：1971-02-09

    申请号：US3561796D

    申请日：1968-12-31

    申请人： CLIFFORD C WILLIAMS

    发明人： WILLIAMS CLIFFORD C

    IPC分类号： E03B3/08 ,  F16L17/067 ,  F16L17/02

    CPC分类号： F16L17/067 ,  E03B3/08

    摘要： A pitless well adapter having an outer adapter part anchored to a well casing around an opening and having a discharge passage therethrough, and an inner adapter part within the well casing supported by and interconnected with said outer part and having a passage in communication with the discharge passage of said outer part. A pair of spaced gasket rings interposed between said outer part and said well casing around said casing opening define an endless spaced passage which communicates with a passage branching from the discharge passage in said outlet part.