专利名称：Height-adjustable hydrant
发明人：HAUR, JEAN-CLAUDE,GUILLAUME,
BERTRAND
申请号：EP92470033.9
申请日：19921203
公开号：EP0545840A1
公开日：
19930609
专利内容由知识产权出版社提供
专利附图：
摘要：This hydrant compris a ba plate (12) fixed in the ground, a helical ring (22)positioned inside the ba plate (12) screwing into an internal thread (24) in the ba
plate and a height-adjustable raising block mounted in the ring (22). The ring (22) extends
over less than one turn of the thread in the ba plate (12). The raising block (14) is integral in rotation with the ring (22) by virtue of an axial rib (32) working in a loo fit with the ends (22A, 22B) of the ring. The raising block (14) compris a helical surface (30) bearing on the surface of the ring (22) under the effect of the weight of the raising block, allowing it to be raid by an operator.
申请人：PONT-A-MOUSSON S.A.
地址：91, AVENUE DE LA LIBERATION; F-54000 NANCY,91, Avenue de la Libération F-54000 Nancy FR
国籍：FR
代理机构：Puit, Thierry
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