公开(公告)号：WO2008045785A1

公开(公告)日：2008-04-17

申请号：PCT/US2007/080572

申请日：2007-10-05

Applicant: DAVIDSON HYDRANT TECHNOLOGIES INC. ,  DAVIDSON, Tom, R., Sr. ,  WALDEN, David, Michael ,  FERRARI, Anthony ,  PHILLIPS, David ,  SIMS, O., G. ,  ROSE, Matthew, Jesse

Inventor： DAVIDSON, Tom, R., Sr. ,  WALDEN, David, Michael ,  FERRARI, Anthony ,  PHILLIPS, David ,  SIMS, O., G. ,  ROSE, Matthew, Jesse

IPC: E03B9/16

CPC classification number: E03B9/16 ,  F16K27/006 ,  Y10T137/1654 ,  Y10T137/5327 ,  Y10T137/5485 ,  Y10T137/5491 ,  Y10T137/88054

Abstract: Wet barrel fire hydrants (10) which feature additional structure for reducing the potential that those with ill intent can foul municipal water supplies by- introducing toxins or other materials into fire hydrants. Various embodiments include valves which close off portions of the hydrant or water conduit otherwise available for receipt of toxic or other materials when the fire hydrant nozzle cap is unscrewed and open and/or a pump is connected to the nozzle (14). Such valves preferably open automatically when water is flowing from the water supply through the nozzle (14), but close off portions of the barrel when the nozzle (14) is open and water is not flowing through the nozzle (14).

Abstract translation: 湿桶消火栓（10）具有额外的结构，以减少潜在的意图，可能会通过将毒素或其他材料引入消防栓来污染市政供水。 各种实施例包括当消防栓喷嘴帽被拧开和打开时和/或泵连接到喷嘴（14）时封闭消防栓或水管道的部分可用于接收有毒或其它材料的阀。 当水从供水通过喷嘴（14）流动时，这种阀门优选地自动打开，但是当喷嘴（14）打开并且水没有流过喷嘴（14）时，这些阀门关闭桶的部分。

公开(公告)号：WO2009023780A1

公开(公告)日：2009-02-19

申请号：PCT/US2008/073181

申请日：2008-08-14

Applicant: DAVIDSON HYDRANT TECHNOLOGIES, INC. ,  PHILLIPS, Brian ,  PHILLIPS, Shawn ,  DAVIDSON, Tom, R., Sr. ,  FERRARI, Anthony ,  WALDEN, David Michael

Inventor： DAVIDSON, Tom, R., Sr. ,  FERRARI, Anthony ,  WALDEN, David Michael

IPC: E03B9/16 ,  E03B9/14 ,  F16K27/00

CPC classification number: E03B9/16 ,  E03B9/14 ,  F16K27/006 ,  Y10T137/0407 ,  Y10T137/5468 ,  Y10T137/5485 ,  Y10T137/5491 ,  Y10T137/5497 ,  Y10T137/88054

Abstract: The present invention relates to methods and devices for retrofitting fire hydrants with additional structure for reducing the potential that those with ill intent can foul municipal water supplies by introducing toxins or other materials into fire hydrants. Various embodiments include a replacement hydrant body having an enlarged diameter portion that can be installed to replace an existing hydrant body. The replacement hydrant body can include a secondary valve comprising a seat, biasing structure, and a restriction member to close off portions of the hydrant otherwise available for receipt of toxic or other materials when the fire hydrant nozzle cap is unscrewed and open.

Abstract translation: 本发明涉及用于改装具有附加结构的消防栓的方法和装置，以减少有意图的人通过将毒素或其它材料引入消火栓中来使市政供水成为可能。 各种实施例包括具有扩大的直径部分的更换消火栓体，其可以安装以替换现有的消火栓体。 替换消火栓体可以包括次级阀，其包括座位，偏压结构和限制构件，以在消防栓喷嘴帽被拧开和打开时封闭消防栓的部分，否则可用于接收有毒或其他材料。