公开(公告)号：US07047997B2

公开(公告)日：2006-05-23

申请号：US10835053

申请日：2004-04-28

申请人： Sharon Elizabeth Beyer ,  Ulf Sawert ,  Mark K. Wolfenden ,  Chris I. Witherspoon ,  Robert A. Roth ,  Thomas J. Mott ,  Michael Allen Pittenger ,  William L. Villaire

发明人： Sharon Elizabeth Beyer ,  Ulf Sawert ,  Mark K. Wolfenden ,  Chris I. Witherspoon ,  Robert A. Roth ,  Thomas J. Mott ,  Michael Allen Pittenger ,  William L. Villaire

IPC分类号： F16K24/04

CPC分类号： F16K24/04 ,  Y10T137/0874 ,  Y10T137/1662 ,  Y10T137/3099

摘要： A device and method for venting a tank comprising an intermediate shutoff valve as part of a cover that closes a tank opening. The intermediate shutoff valve is placed between an existing valve and a vent port in a liquid storage tank. The shutoff valve is operable to substantially fluidly seal the vent port when the vent valve is displaced greater than a predetermined amount. The intermediate shutoff valve facilitates complete removal of the existing vent valve during an impact wherein a wall of the storage tank impacts the existing valve. Upon impact, the intermediate shutoff valve is operable to close and seal a tank opening created by the displacement and removal of the existing vent valve.

摘要翻译： 一种用于排出包括中间截止阀的罐的装置和方法，所述中间截止阀是封闭罐开口的盖的一部分。 中间截止阀置于液体储罐中的现有阀和排气口之间。 当排气阀移动大于预定量时，截止阀可操作以基本上流体地密封通气口。 中间截止阀有助于在冲击期间完全去除现有的排气阀，其中储罐的壁冲击现有的阀。 在冲击时，中间截止阀可操作以关闭并密封由现有排气阀的移动和移除产生的罐开口。