초록 ▼

An apparatus and a method are provided for producing a delayed foaming action in mixed liquids useful as suppressants for fire area control and curtailment of chemical spills. The apparatus is self-powered and sized to be transported to a target area by a variety of land and sea vehicles as delivery

An apparatus and a method are provided for producing a delayed foaming action in mixed liquids useful as suppressants for fire area control and curtailment of chemical spills. The apparatus is self-powered and sized to be transported to a target area by a variety of land and sea vehicles as delivery platforms. The apparatus is particularly designed for airborne delivery and is especially adaptable to helicopter applications.

대표청구항 ▼

A delayed foam producing apparatus for emergency foam delivery systems comprising: a contained liquid source; a confining liquid conducting system having a major passageway from an opened input end to an opened output end, there being input and flow affecting fixtures in spaced arrangement along sai

A delayed foam producing apparatus for emergency foam delivery systems comprising: a contained liquid source; a confining liquid conducting system having a major passageway from an opened input end to an opened output end, there being input and flow affecting fixtures in spaced arrangement along said major passageway; a conduit attachment from said contained liquid source to said opened input end of said liquid conducting system; mechanics for drawing said liquid from said contained liquid source and moving said liquid through said liquid conducting system; means for controlling said mechanics; a contained foam producing concentrate source; a conduit affixed from said foam producing concentrate source to a measuring and proportioning device and a conduit therefrom into said major passageway attached as one of said input and flow affecting fixtures in said spaced arrangement along said major passageway; a mixing and pressurizing device affixed into said major passageway adjacently after said concentrate fixture being one of said input and flow affecting fixtures in said spaced arrangement along said major passageway; a pressure sensing flow on/off control valve immediately after said mixing and pressurizing device affixed into said major passageway being one of said input and flow affecting fixtures in said spaced arrangement along said major passageway; controllable access to a contained liquified gas source; a gas passing conduit being one of said input and flow affecting fixtures in said spaced arrangement along said major passageway connected from said controllable access to said liquified gas source to a gas injection and mixing chamber being one of said input and flow affecting fixtures in said spaced arrangement along said major passageway after said pressurizing device with said chamber being of sufficient tensile strength to contain a highly pressurized mixing of said liquid, said foam producing concentrate, and said liquified gas; said major passageway having a high pressure maintenance portion from said gas injection and mixing chamber to said opened output end; an adjustable fluid flow directional control device attached at said opened output end of said major passageway; means for initiating and controlling said fluid flow directional control device; an exiting stream conditioning device producing a columnar flow attached to said directional control device; means for replenishing a depleted liquid supply.