Pump dispenser and cartridge

• US 20050224515A1
• Filed: 04/06/2004
• Published: 10/13/2005
• Est. Priority Date: 04/06/2004
• Status: Active Grant

• Current Assignee: Clifford Spitser, David S. Reed, Matthew F. Falbo, Robert Rhinesmith, Thomas K. Mon
• Original Assignee: Clifford Spitser, David S. Reed, Matthew F. Falbo, Robert Rhinesmith, Thomas K. Mon
• Inventors: Mon, Thomas K., Reed, David S., Rhinesmith, Robert, Spitser, Clifford, Falbo, Matthew F.
• Granted Patent: US 7,331,486 B2
• Time in Patent Office: Days
• US Class Current: 222/82
• CPC Class Codes: B05B 11/0081 and for mixing the components in a common container as a mixture ready for use before discharging the latter
• CPC Class Codes: B05B 11/1057 Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user

Abstract

A cartridge for use in conjunction with a container to dispense a liquid in the cartridge into the container. The cartridge is comprised of a hollow body defined by an enclosing wall that has a closure at an upper end and a lower cartridge wall that is integral to the hollow body, but of a thickness less than that of the hollow body enclosing wall. The lower cartridge wall of a reduced thickness is in a narrowed section of the hollow body. A closure is sealed onto an upper part of the hollow body and has a funnel-like shape with a lower funnel wall. The funnel wall is of a reduced thickness as compared to the remainder of the closure. A flange on the hollow body rests on a container upper surface to support the cartridge on the container. A container closure will hold the cartridge in place during use. A dispensing pump on the container closure has a dip tube which pierces the funnel wall and cartridge wall and thereby dispense the cartridge contents into the container. The cartridge usually remains held onto the container until the contents of the container are depleted. The container will contain a diluent liquid for diluting the cartridge contents to the use concentration.

Claims

1. A cartridge for containing a liquid to be dispensed into a reservoir comprising an elongated hollow body having an enclosing wall, an upper end and a lower end, the upper end closed by a closure and the lower end closed by an integral lower cartridge wall of a thickness less than that of the enclosing wall, the upper closure sealed to the hollow body at an upper end of said hollow body.

2. A cartridge as in claim 1 wherein the hollow body at the lower end has a narrowed section, the lower cartridge wall at the end of the narrowed section.

3. A cartridge as in claim 1 wherein the lower cartridge wall has a thickness of less than that of the enclosing wall.

4. A cartridge as in claim 3 wherein the lower cartridge wall has an average thickness of about 1% to about 30% of said enclosing wall.

5. A cartridge as in claim 3 wherein said lower cartridge wall has an average thickness of about 0.0075 mm to about 0.2 mm and said enclosing wall has an average thickness of about 0.05 mm to about 4.0 mm.

6. A cartridge as in claim 1 wherein said closure has a closure narrowed section which extends down into the hollow body.

7. A cartridge as in claim 6 wherein said closure has a funnel-like shape.

8. A cartridge as in claim 6 wherein the upper closure narrowed section has an integral funnel wall at an end thereof.

9. A cartridge as in claim 1 wherein he hollow body has a flange on the upper end thereof.

10. A cartridge as in claim 9 wherein the closure has a peripheral flange which overlays the flange on the upper end of the cartridge.

11. A container and combined cartridge, the cartridge for containing and dispensing a liquid into the container comprising the container with the cartridge mounted on an upper portion of the container, the cartridge comprising an elongated hollow body having an enclosing wall, an upper end and a lower end;

the upper end closed by a closure and the lower end closed by an integral lower cartridge wall of a substantially constant thickness, the closure sealed to the hollow body at an upper end of said hollow body.

12. A combined container and cartridge as in claim 11 wherein the hollow body at the lower end has a narrowed section, the lower cartridge wall at the end of the narrowed section.

13. A combined container and cartridge as in claim 11 wherein the lower wall has a thickness of less than that of the enclosing wall.

14. A combined container and cartridge as in claim 13 wherein the lower cartridge wall has a thickness of about 1% to about 30% of said enclosing wall.

15. A combined container and cartridge as in claim 13 wherein said lower cartridge wall has a thickness of about 0.0075 mm to about 0.2 mm and said enclosing wall has a thickness of about 0.05 mm to about 4.0 mm.

16. A combined container and cartridge as in claim 11 wherein said closure has a closure narrowed section which extends down into the hollow body.

17. A combined container and cartridge as in claim 16 wherein the closure has a funnel-like shape.

18. A combined container and cartridge as in claim 16 wherein the upper closure narrowed section has an integral funnel wall at an end thereof.

19. A combined container and cartridge as in claim 11 wherein the hollow body has a flange on the upper end thereof whereby said hollow body can be supported on an upper part of the container.

20. A combined container and cartridge as in claim 19 wherein the upper closure has a peripheral flange, the flange and the peripheral flange sealed together to seal the cartridge.