Foam-spray-off trigger sprayer

A nozzle assembly for a foam-spray-off trigger sprayer comprising:

• a barrel with perforated end wall member;
• a nozzle member which has an elongate central axis and which is constructed to be mounted on the outer end of a nose bushing having liquid direction structure for directing liquid into a swirl, said nozzle member having a rear barrel portion and a front barrel portion with an internal wall therebetween, said internal wall having an orifice therethrough located on said central axis and being located to receive swirling liquid from the nose bushing for injection into said front barrel portion;
• said barrel with perforated end wall member including an outer hollow cylindrical body and a transversely extending perforated wall mounted in said cylindrical body;
• mounting means for mounting said barrel with perforated end wall member for axial movement on and relative to said front barrel portion;
• said barrel with perforated end wall member having a short cylinder mounted within said cylindrical body and said perforated wall forming part of a rear wall thereof;
• and,
• said mounting means comprising said cylindrical body having three arcuately equally spaced webbings extending radially inwardly from said cylindrical body to said short inner cylinder thereby defining arcuate spaces therebetween through which partially cylindrical sections defined between three axially extending slots in said front barrel portion can extend with said webbings being received and movable in said slots of said front barrel portion of said nozzle member.

A nozzle assembly for a foam-spray-off trigger sprayer comprising:

• a barrel with perforated end wall member;
• a nozzle member which has an elongate central axis and which is constructed to be mounted on the outer end of a nose bushing having liquid direction structure for directing liquid into a swirl, said nozzle member having a rear barrel portion and a front barrel portion with an internal wall therebetween, said internal wall having an orifice therethrough located on said central axis and being located to receive swirling liquid from the nose bushing for injection into said front barrel portion, and
• said barrel with perforated end wall member including an outer hollow cylindrical body and a transversely extending perforated wall mounted in said cylindrical body;
• and,
• mounting means for mounting said barrel with perforated end wall member for axial movement on and relative to said front barrel portion comprising said cylindrical body of said barrel with perforated end wall member having three equidistantly spaced webbings and said front barrel portion of said nozzle member having three equidistantly spaced axially extending slots therein for receiving said webbings of said barrel.