초록 ▼

A foam-applying nozzle assembly (N) for applying a foam made up from a supply of a foam-forming liquid composition (F) and a flowing liquid stream (W) includes an inner barrel (I) having an axial bore (10) for communicating the liquid stream (W) from a hose. Eductor means (E) with the inner barrel (

A foam-applying nozzle assembly (N) for applying a foam made up from a supply of a foam-forming liquid composition (F) and a flowing liquid stream (W) includes an inner barrel (I) having an axial bore (10) for communicating the liquid stream (W) from a hose. Eductor means (E) with the inner barrel (I) extracts the foam-forming liquid composition (F) from the supply of the foam-forming composition. The eductor means (E) inducts the extracted foam-forming liquid composition (F) into a portion (W′) of the liquid stream (W) flowing through the eductor means (E). The eductor (E) has a discharge opening (22o) in proximity to the outlet of the inner barrel I for mixing the foam-forming composition (F) with the liquid stream (W) from the inner barrel (I) in proximity to the discharge of the liquid stream, whereby a foam is created. Flow regulating nozzle means (R) mounted in an outlet (10o) of the bore (10) regulates the lateral extent of the discharged stream (W).

대표청구항 ▼

A nozzle assembly for applying a foam made up from a supply of a foam-forming liquid composition and a flowing liquid stream, comprising: an inner barrel having an axial bore with an inlet for receiving a liquid stream under pressure and an outlet for discharging the liquid stream therefrom; flow re

A nozzle assembly for applying a foam made up from a supply of a foam-forming liquid composition and a flowing liquid stream, comprising: an inner barrel having an axial bore with an inlet for receiving a liquid stream under pressure and an outlet for discharging the liquid stream therefrom; flow regulating nozzle means mounted in said outlet for regulating the lateral extent of the stream discharged from the inner barrel; eductor means with said inner barrel having means for receiving a portion of the liquid flowing through said inner barrel to create a reduced pressure in the eductor means; foam-forming inlet means mounted with said eductor means for introducing a foam-forming composition into said eductor means as a result of the reduced pressure therein; a mixing passage between said eductor means and said flow regulating nozzle means; and said eductor means having a discharge opening into said mixing passage in proximity to said outlet of said inner barrel for mixing by an outward deflection with respect to said inner barrel, the foam-forming composition and said portion of said fluid stream flowing through said eductor means, with the remaining liquid stream from the inner barrel prior to discharge from said nozzle assembly, whereby a foam is created, with substantially the full velocity and volume of a liquid stream, to allow the foam to be propelled from the nozzle with a maximum distance of ejection and volume output.