Translating treatment cartridge, fluid dispensing system, and method of using

Patent metadata

Field	Value
Publication number	US-10065845-B2
Application number	US-201615209304-A
Country	US
Kind code	B2
Filing date	Jul 13, 2016
Priority date	Jul 13, 2015
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A dispensing system having a treatment cartridge utilizing linear translation of the treatment cartridge within the manifold to actuate a valve to dispense a fluid. To dispense the fluid, a person pushes their glass or other container against a dispensing lever that translates the treatment cartridge within the manifold causing a cam surface on the filter's circumferential exterior to actuate a valve sending the fluid from the valve though the treatment cartridge and out a dispensing orifice in the treatment cartridge into the glass.

First claim

What is claimed is:

1. A dispensing system comprising:
a manifold having a fluid inlet and a cartridge bore;
a translating treatment cartridge in the cartridge bore; and wherein motion of the translating treatment cartridge from a first position to a dispensing position within the cartridge bore dispenses fluid from a dispensing orifice located in the translating treatment cartridge, and wherein the translating treatment cartridge comprises a housing having a first end, a second end, a first body portion, a second body portion, and a cam surface located between the first and second body portions.

2. The dispensing system of claim 1 wherein the fluid inlet comprises an inlet bore, a valve seat located in the inlet bore, and a spring biased poppet valve located within the inlet bore.

3. The dispensing system of claim 1 wherein the manifold does not have a fluid outlet.

4. The dispensing system of claim 1 wherein the manifold comprises an auxiliary outlet port.

5. The dispensing system of claim 4 wherein the manifold comprises a solenoid valve and a second fluid inlet.

6. The dispensing system of claim 1 wherein the cartridge bore comprises longitudinal ribs and longitudinal grooves spaced around the circumference of the cartridge bore.

7. The dispensing system of claim 1 wherein the cartridge bore comprises a non-circular cross section.

8. The dispensing system of claim 7 wherein the cartridge bore comprises an elliptical cross section, the elliptical cross section having two axes of symmetry, opposing larger radius sides, and opposing smaller radius sides.

9. The dispensing system of claim 7 where cartridge bore comprises an oval cross section, the oval cross section having one axis of symmetry and a larger radius side opposing a smaller radius side.

10. The dispensing system of claim 1 wherein the cartridge bore comprises a first sealing member spaced longitudinally from a second sealing member and the fluid inlet is located between the first and the second sealing members.

11. The dispensing system of claim 10 wherein the first and second sealing members comprise wiper seals.

12. The dispensing system of claim 1 wherein the first body portion has a larger cross sectional area than the second body portion, the cam surface comprises a chamfer between the first body portion and the second body portion, and the cartridge bore is stepped in cross sectional area to correspond with the first and second body portions.

13. The dispensing system of claim 1 wherein the cartridge bore comprises a cartridge tracking slot and the translating treatment cartridge comprises a cartridge indexing projection extending from the housing, and wherein the cartridge indexing projection resides in the cartridge tracking slot for at least a portion of the linear motion to prevent rotation of the translating treatment cartridge.

14. The dispensing system of claim 13 wherein the cartridge tracking slot comprises a linear portion aligned parallel to the cartridge bore and an arcuate portion extending along the circumference of the cartridge bore.

15. The dispensing system of claim 14 wherein the cartridge tracking slot in the direction of insertion of the translating treatment cartridge comprises a first linear portion extending to an arcuate portion extending along the circumference of the cartridge bore to a second linear portion.

16. The dispensing system of claim 15 comprising a second cartridge indexing slot and wherein the second cartridge indexing slot in the direction of insertion of the translating treatment cartridge comprises a first arcuate portion extending along the circumference of the cartridge bore to a first linear portion extending to a second arcuate portion extending around the circumference of the cartridge bore to a second linear portion.

17. The dispensing system of claim 1 wherein at least one of the first or second body portions comprises a linear bearing surface and at least a portion of the filter inlet bore comprises a bushing.

18. The dispensing system of claim 1 comprising:
a treatment cartridge spring return arm having an L shape with a long arm portion attached to the manifold and a distending short arm portion spaced apart from the translating treatment cartridge;
a spring support projection extending from the short arm portion back toward the translating treatment cartridge; and
a cartridge return spring captured on the spring support projection positioning the cartridge return spring between the translating treatment cartridge and the distending short arm.

19. The dispensing system of claim 1 comprising:
a dispensing lever comprising a paddle end, a bushing end, and a slotted portion connecting the paddle end to the bushing end;
the translating treatment cartridge comprising a dispensing lever engagement feature connected to the slotted portion of the dispensing lever; and
the manifold comprising a longitudinally extending dispensing lever support arm connected to the manifold, the dispensing lever support arm comprising a distending transverse pin; and the bushing end of the dispensing lever positioned on the distending transverse pin.

20. The dispensing system of claim 19 wherein the manifold comprises a spool housing having a hollow center section and at least one flange extending from the hollow center section, and the at least one flange having a circular slot with the longitudinally extending dispensing lever support arm passing through the circular slot.

21. The dispensing system of claim 1 comprising a dispensing lever having a paddle end and a cartridge bore end, and wherein the translating treatment cartridge extends through the cartridge bore end.

22. The dispensing system of claim 21 wherein the manifold comprises a treatment cartridge support arm extending from the manifold and a treatment cartridge support attached to the distal end of the treatment cartridge support arm, and wherein the translating treatment cartridge extends to the treatment cartridge support and the dispensing lever is positioned between the treatment cartridge support and the cartridge bore of the manifold.

23. The dispensing system of claim 1 comprising:
a dispensing lever comprising a paddle end, a bushing end, and a slotted portion connecting the paddle end to the bushing end;
the translating treatment cartridge comprising a dispensing lever engagement feature connected to the slotted portion of the dispensing lever;
a dispensing lever spring return arm having an L shape with a long arm portion attached to the manifold and a distending short arm portion spaced apart from the translating treatment cartridge;
a spring support projection extending from the short arm portion back toward the translating treatment cartridge;
a cartridge return spring captured on the spring support projection positioning the cartridge return spring between the dispensing lever and the distending short arm; and
a distending transverse pin attached to the long arm portion positioned between the cartridge bore and the distending short arm, and the bushing end of the dispensing lever positioned on the distending transverse pin.

24. A dispensing system comprising:
a manifold having a fluid inlet and a cartridge bore;
a translating treatment cartridge in the cartridge bore; and wherein motion of the translating treatment cartridge from a first position to a dispensing position within the cartridge bore dispenses fluid from a dispensing orifi

Assignees

• 3M Innovative Properties Co

Inventors

• Lachermeier David W

Classifications

• B67D1/0082 Primary

  entirely mechanical · CPC title

• C02F2307/10

  as part of a potable water dispenser, e.g. for use in homes or offices · CPC title

• F16K11/0716

  with fluid passages through the valve member (F16K11/0704, F16K11/0708, F16K11/0712 take precedence) · CPC title

• C02F2201/004

  Seals, connections · CPC title

• C02F2201/006

  Cartridges · CPC title