公开(公告)号：US06929022B1

公开(公告)日：2005-08-16

申请号：US10881293

申请日：2004-06-30

申请人： Todd Ingalls ,  Kevin J. Wright ,  Bryan J. Griffin ,  Richard J. Brooks

发明人： Todd Ingalls ,  Kevin J. Wright ,  Bryan J. Griffin ,  Richard J. Brooks

IPC分类号： E03B9/04 ,  F16K1/42

CPC分类号： F16K1/422 ,  E03B9/04 ,  Y10T29/49409 ,  Y10T137/5327 ,  Y10T137/5392

摘要： A fire hydrant having a valve seat flange with an integral liner. In one embodiment, the fire hydrant includes a valve seat flange disposed between a standpipe and a hydrant shoe. The valve seat flange includes a standpipe neck defining internal threads to directly connect to the standpipe and a base flange to directly connect to the hydrant shoe. The liner includes an outer peripheral edge that is entrapped within the valve seat flange and an inner circumferential surface defining threads for receiving the valve seat of a valve assembly. The present invention also discloses a process of manufacturing a valve seat flange, including the steps of: (a) manufacturing the liner, (b) incorporating the liner into a core with the outer peripheral region of the liner exposed, (c) placing the integral core/liner into the valve seat flange mold and (d) forming the valve seat flange around the liner with the valve seat flange entrapping the outer peripheral region of the liner.

摘要翻译： 消防栓具有带一体式衬垫的阀座法兰。 在一个实施例中，消防栓包括设置在立管和消防栓鞋之间的阀座凸缘。 阀座法兰包括一个竖管颈，其定义内螺纹以直接连接到立管，以及一个底部法兰，以直接连接到消火栓鞋。 衬套包括被截留在阀座凸缘内的外周边缘和限定用于接纳阀组件的阀座的螺纹的内圆周表面。 本发明还公开了一种制造阀座凸缘的方法，包括以下步骤：（a）制造衬套，（b）将衬套结合到芯体中，其中衬垫的外围区域暴露，（c） 整体式的内芯/内衬到阀座法兰模具中，（d）围绕衬套形成阀座法兰，阀座法兰截留衬套的外围区域。