![Double Check Back Flow Prevention Device](/abs-image/US/2012/01/19/US20120012194A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: Double Check Back Flow Prevention Device
- 专利标题(中):双重防回流装置
- 申请号:US13241039 申请日:2011-09-22
- 公开(公告)号:US20120012194A1 公开(公告)日:2012-01-19
- 发明人: William T. Ball , Eric Pilarczyk
- 申请人: William T. Ball , Eric Pilarczyk
- 申请人地址: US CO Colorado Springs
- 专利权人: WCM INDUSTRIES, INC.
- 当前专利权人: WCM INDUSTRIES, INC.
- 当前专利权人地址: US CO Colorado Springs
- 主分类号: F16K24/00
- IPC分类号: F16K24/00
摘要:
A double check valve is provided that includes an in-line inlet check valve and an outlet check valve that cooperate to prevent back flow of fluid through the valve. The check valve also includes at least one vent that allows for fluid trapped within the check valve to drain, thereby preventing freezing of the check valve and hydrant to which it is interconnected. The check valve provided omits many superfluous components and thus is smaller and easier to install than check valves of the prior art.
摘要(中):
提供了一种双止回阀,其包括一个在线入口止回阀和一个出口止回阀,它配合以防止流体通过阀的反向流动。 止回阀还包括至少一个排气口,其允许在止回阀内捕获的流体排出,从而防止其相互连接的止回阀和消防栓的冷冻。 提供的止回阀省略了许多多余的部件,因此比现有技术的止回阀更小且更容易安装。
公开/授权文献:
- US08272394B2 Double check back flow prevention device 公开/授权日:2012-09-25
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F16 | 工程元件或部件;为产生和保持机器或设备的有效运行的一般措施;一般绝热 |
----F16K | 阀;龙头;旋塞;致动浮子;通风或充气装置 |
------F16K24/00 | 用于罩套通风或充气的装置,如阀 |