公开(公告)号：EP1758954A2

公开(公告)日：2007-03-07

申请号：EP05731475.9

申请日：2005-03-22

申请人： Waterous Company

发明人： ROBERTS, Geary, E.

IPC分类号： C08K3/00

CPC分类号： A62C5/02

摘要： Fire fighting equipment uses an electronically controlled direct injection foam delivery system (10). A water pump (14) pumps water through a pipe (2.4). A foam pump (36) pumps foam into a mixing chamber (46) within the pipe to produce a water-foam mixture. A microprocessor-based control circuit (20) controls the water pump and foam pump. A conductivity sensor (50) is coupled in-line with the pipe for monitoring conductivity of the mixture and providing a feedback signal to the control circuit to regulate the foam pump. The conductivity sensor uses stainless steel plates (60,62) positioned in the flow stream of the pipe for measuring conductivity of the mixture. An interface circuit (54) generates a voltage having dual polarity and a fifty percent duty cycle for the conductivity sensor. A second conductivity sensor (30) monitors conductivity of the water and provides a feedback signal to the control circuit.

公开(公告)号：EP2836723A1

公开(公告)日：2015-02-18

申请号：EP13718967.6

申请日：2013-04-11

申请人： Waterous Company

发明人： METTLER, Thomas Joseph ,  HAIDER, Mark Francis ,  TSANG, Henry Yinwah ,  JOHNSON, Brian Jacob ,  SMITH, Jason Adam ,  JOHNSON, Robert Allen

IPC分类号： F04D9/04

CPC分类号： F04D17/08 ,  F04D9/042 ,  F04D9/043 ,  F04D29/428

摘要： A pump assembly includes a centrifugal pump having an intake, a discharge, a pump chamber and an impeller to deliver water from the intake to the discharge. A priming system is fluidly coupled to the pump chamber. A drive assembly includes a drive shaft coupled to the priming system and positioned around an impeller shaft coupled to the impeller for selective rotatable coupling of the impeller shaft and the drive shaft.

公开(公告)号：EP3126013A2

公开(公告)日：2017-02-08

申请号：EP15716376.7

申请日：2015-04-02

申请人： Waterous Company

发明人： CLAUSEN, Ivan Arthur ,  GESKE, Gregg Allen ,  GAMBLE, Jonathan David

IPC分类号： A62C5/02

CPC分类号： B01F3/04446 ,  A62C5/022 ,  A62C5/024 ,  B01F3/04439 ,  B01F3/04503 ,  B01F3/04992 ,  B01F5/0451 ,  B01F5/0463 ,  B01F5/0619 ,  B01F15/00357 ,  B01F15/026 ,  B01F2215/008

摘要： A foam generating system is disclosed that includes a liquid source providing liquid including at least one of water, an additive and a foaming agent. The system further includes a compressed gas source and a manifold coupled with the liquid source to receive liquid therefrom. A pressure control valve controls pressure of liquid flowing from the liquid source to the manifold and a plurality of foam generators fluidly coupled with the manifold. A control system is electrically coupled to the pressure control valve and each foam generator. In one implementation, the control system operates each of the foam generators to provide a first flow control state for a first type of foam output, a second flow control state for a second type of foam output and a water flow control state for liquid.

摘要翻译： 公开了一种发泡系统，其包括提供包括水，添加剂和发泡剂中的至少一种的液体的液体源。 该系统还包括压缩气体源和与液体源联接以接收液体的歧管。 压力控制阀控制从液体源流向歧管的液体的压力和与歧管流体连接的多个泡沫发生器。 控制系统电耦合到压力控制阀和每个泡沫发生器。 在一个实施方案中，控制系统操作每个泡沫发生器以提供用于第一类型泡沫输出的第一流量控制状态，用于第二类型泡沫输出的第二流量控制状态和用于液体的水流控制状态。

公开(公告)号：EP3337577A1

公开(公告)日：2018-06-27

申请号：EP16862703.2

申请日：2016-10-24

申请人： Waterous Company

发明人： HAIDER, Mark, Francis ,  GESKE, Gregg, Allen

IPC分类号： A62C13/66

CPC分类号： A62C5/022

摘要： The present invention is a mixing device for producing compressed foam for an extinguishing device for firefighting comprising a foam solution inlet that is operatively connected to a foam solution mixture area that is operatively connected to a compressed air inlet that is operatively connected to a compressed air injection manifold that is operatively connected to a mixing chamber. The compressed air injection manifold having a plurality of lateral sides that have a plurality of holes distributed across at least one of the lateral sides. A scrubbing collector pipe that extends into the mixing chamber to form an annular flow area within the mixing chamber. The scrubbing collector pipe having a plurality of holes distributed around an outer periphery of the scrubbing collector pipe. An inner collector pipe within the scrubbing collector pipe. A compressed air foam outlet operatively connected to the scrubbing collector pipe.