Pump dispenser with an inclined nozzle
View Patent ↗A pump dispenser for dispensing a liquid product from a container includes an inlet valving arrangement, a plunger and piston arrangement, an outlet valving arrangement and a dispensing nozzle. The dispensing nozzle is a snap-together combination of a unitary, molded plastic nozzle body and a unitary, molded plastic outlet member. The nozzle body defines an exit passageway for the liquid product being dispensed from the container. The outlet member includes an outlet opening and a weir which is positioned between the outlet opening and the exit passageway. Use of the weir affects the exit velocity of the product being dispensed and also provides a barrier so as to prevent remainder or residual product from seeping into or around the outlet opening where it might coagulate.
1. A pump dispenser for dispensing a liquid product from a container, said pump dispenser comprising:
an inlet valving arrangement;
a plunger and piston arrangement;
an outlet valving arrangement; and
a dispensing nozzle including a nozzle body and an outlet member, said nozzle body defining an exit passageway and said outlet member including a proximal end, an outlet opening and a weir which is positioned between said proximal end and said outlet opening, wherein said outlet member includes a sleeve with a longitudinal centerline and said weir extends along a weir wall centerline such that the entirety of said weir along said weir wall centerline is between said longitudinal centerline and said outlet opening.
2. The pump dispenser of claim 1 wherein said nozzle body is constructed and arranged for a snap-fit receipt of said outlet member.
3. The pump dispenser of claim 2 wherein said snap-fit receipt is an interference fit.
4. The pump dispenser of claim 3 wherein said nozzle body is a unitary, molded plastic component.
5. The pump dispenser of claim 4 wherein said outlet member is a unitary, molded plastic component.
6. The pump dispenser of claim 5 wherein said outlet opening has a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet opening.
7. The pump dispenser of claim 6 wherein said plunger and piston arrangement includes a plunger with a centerline axis and wherein said exit passageway has a centerline axis, and wherein there is an included angle between the centerline axis of said plunger and the centerline axis of said exit passageway, said included angle being greater than 90 degrees.
8. The pump dispenser of claim 7 wherein said included angle is between 92 degrees and 94 degrees.
9. The pump dispenser of claim 1 wherein said nozzle body is a unitary, molded plastic component.
10. The pump dispenser of claim 1 wherein said outlet member is a unitary, molded plastic component.
11. The pump dispenser of claim 1 wherein said outlet opening has a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet opening.
12. The pump dispenser of claim 1 wherein said plunger and piston arrangement includes a plunger with a centerline axis and wherein said exit passageway has a centerline axis, and wherein there is an included angle between the centerline axis of said plunger and the centerline axis of said exit passageway, said included angle being greater than 90 degrees.
13. The pump dispenser of claim 12 wherein said included angle is between 92 degrees and 94 degrees.
14. A dispensing nozzle for snap-on assembly to a dispensing plunger for use in dispensing a product from a container, said dispensing nozzle comprising:
a nozzle body defining an exit passageway; and
an outlet member including a proximal end, an outlet opening and a weir which is positioned between said proximal end and said outlet opening, wherein said outlet member includes a sleeve with a longitudinal centerline and said weir extends along a weir wall centerline such that the entirety of said weir along said weir wall centerline is between said longitudinal centerline and said outlet opening.
15. The dispensing nozzle of claim 14 wherein said nozzle body is constructed and arranged for a snap-fit receipt of said outlet member.
16. The dispensing nozzle of claim 15 wherein said snap-fit receipt is an interference fit.
17. The dispensing nozzle of claim 16 wherein said outlet opening has a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet opening.
18. The dispensing nozzle of claim 17 wherein said nozzle body is a unitary, molded plastic component.
19. The dispensing nozzle of claim 18 wherein said outlet member is a unitary, molded plastic component.
20. The dispensing nozzle of claim 14 wherein said outlet opening has a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet opening.
21. A pump dispenser for dispensing a liquid product from a container, said pump dispenser comprising:
an inlet valving arrangement;
a plunger and piston arrangement;
an outlet valving arrangement; and
a dispensing nozzle including a nozzle body and an outlet member, said nozzle body defining an exit passageway and said outlet member including a proximal end, an outlet opening and a weir which is positioned between said proximal end and said outlet opening, wherein said outlet member includes an outlet sleeve and wherein said weir has a distal surface which is substantially flush with an inner surface of said outlet sleeve.
22. A dispensing nozzle for assembly to a dispensing plunger for use in dispensing a product from a container, said dispensing nozzle comprising:
a nozzle body defining an exit passageway; and
an outlet member including a proximal end, an outlet opening and a weir which is positioned between said proximal end and said outlet opening, wherein said outlet member includes an outlet sleeve and wherein said weir has a distal surface which is substantially flush with an inner surface of said outlet sleeve.
23. A dispensing nozzle for use in dispensing a product from a container, said dispensing nozzle comprising:
a nozzle body defining an exit passageway and including a radial shelf at a distal end; and
an outlet member inserted and seated into said distal end, said outlet member including a proximal end, an outlet opening, a centerline and a weir which is positioned below said centerline between said proximal end and said outlet opening, wherein said outlet member centerline is a longitudinal centerline and said weir extends along a weir wall centerline such that the entirety of said weir along said weir wall centerline is between said longitudinal centerline and said outlet opening.
24. The dispensing nozzle of claim 23 wherein said nozzle body and said outlet member are constructed and arranged for uninterrupted product flow from said nozzle body into said outlet member.
25. The dispensing nozzle of claim 23 wherein said outlet opening has a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet opening.
26. An outlet member for assembly to a nozzle body for use in dispensing product from a container, said outlet member comprising:
a first end constructed and arranged for assembly to said nozzle body;
a second end defining an outlet opening; and
a weir positioned between said first end and said second end, wherein said outlet member further includes an outlet sleeve and wherein said weir has a distal surface which is substantially flush with an inner surface of said outlet sleeve.
27. The outlet member of claim 26 wherein said outlet member defines a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet member.
28. An outlet member for assembly to a nozzle body for use in dispensing product from a container, said outlet member comprising:
a first end constructed and arranged for assembly to said nozzle body;
a second end defining an outlet opening; and
a weir positioned between said first end and said second end, wherein said weir includes a proximal surface facing said first end and an opposed distal surface facing said outlet opening.
29. The outlet member of claim 28 wherein said outlet member defines a centerline axis and said weir is constructed and arranged with an upright wall with a wall centerline which is substantially parallel to the centerline axis of said outlet member.