Designs for filtration systems within appliances

• US 20050173323A1
• Filed: 10/28/2004
• Published: 08/11/2005
• Est. Priority Date: 10/28/2003
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Kirchner, Richard A., Botts, David M., Meuleners, William J., Fritze, Karl
• Application Number:
  US10/975,193
• Publication Number:
  US 20050173323A1
• Time in Patent Office: Days
• US Class Current: 210/184
• CPC Class Codes: F25D 11/02 with cooling compartments at different temperatures
• CPC Class Codes: F25D 23/061 with conduit means
• CPC Class Codes: F25D 23/126 Water cooler
• CPC Class Codes: F25D 2400/04 Refrigerators with a horizontal mullion
• CPC Class Codes: F25D 2400/06 Refrigerators with a vertical mullion

Abstract

Water filtration systems and methods for assembling appliances involve embedded water flow components such that space is preserved within the appliance. In particular, the components can be incorporated into an insulated structure of an appliance by placing the components into a mold or frame prior to or during the formation of the component. For example, the filtration unit components can be incorporated into a wall or door of an appliance by placing the components into a mold or frame prior to or during the formation of the component. A foam-in-place operation, or the like, embeds the water system component, or portions thereof, within the insulated structure such that there is intimate contact between an insulating foam and the components and the component cannot be removed without destroying the structural integrity of the foam.

Claims

1. An appliance comprising:

an appliance body having a first wall, a second wall and insulation between the first wall and second wall; and

a water filtration system including a water flow component or a portion thereof embedded within the insulation.

2. The appliance of claim 1 wherein the water flow component is selected from the group comprising:

a filtration manifold, a bulkhead fitting, a storage tank, an inlet flow line, an outlet flow line, an inlet valve, an outlet valve, a wire assembly, a heat exchanger and a control unit.

4. The appliance of claim 1 further comprising:

at least one appliance door wherein the appliance door includes an inner door skin, an outer door skin and door insulation.

5. The appliance of claim 4 wherein the appliance door comprises:

a filtered water line, a drain line and a water dispenser embedded within the door insulation.

6. The appliance of claim 1 wherein the water filtration system comprises:

a water filter manifold having a filter connector, the water manifold being operably connected to the embedded water filtration component using a bulkhead fitting mounted to the first wall of the appliance body.

7. The appliance of claim 6 wherein the water filtration system further comprises:

a cartridge filter, wherein the cartridge filter is attached to the filter connector to define a filtering circuit connecting an inlet line and an outlet line of the water filter manifold through the cartridge filter.

8. The appliance of claim 7 wherein the cartridge filter is reversibly, rotatably attached to the filter connector.

9. The appliance of claim 1 wherein the appliance comprises:

a refrigerator having a refrigeration compartment and a freezer compartment.

10. The appliance of claim 9 wherein the refrigerator compartment is adjacent the freezer compartment and wherein the insulation separates the refrigerator compartment from the freezer compartment.

13. The appliance of claim 1 wherein the water filtration system further comprises:

a control unit operably connected to a valve, the control unit selectively controlling a filtered water flow through the water filtration system to a point-of-use.

3. (canceled)

11-12. -12. (canceled)

14. (canceled)

15. A water filtration system for use with an insulated appliance comprising:

a filtration manifold and a cartridge filter, the cartridge filter operably connected to the filtration manifold such that a filtration circuit is defined between a manifold inlet and a manifold outlet wherein at least one water flow component or a portion thereof is embedded within an insulating structure.

16. The water filtration system of claim 15 wherein the at least one water flow component is selected from the group comprising:

a filtration manifold, a bullhead fitting, a storage tank, an inlet flow line, an outlet flow line, an inlet valve, an outlet valve, a wire assembly, a heat exchanger and a control unit.

17. The water filtration system of claim 15 wherein the filtration manifold comprises:

a filter connector providing for reversible, rotatable interconnection of the cartridge filter and the filtration manifold.

18. The water filtration system of claim 15 wherein the cartridge filter comprises a filtration media selected from the group comprising:

a powdered activated carbon media, a granular activated carbon media, a ceramic filtration media, a powdered polymeric filtration media, a manganese greensand filtration media, an ion exchange media, a cross flow filtration media, a polymeric barrier filtration, a, mineral-based fiber filtration media, a mineral-based granular filtration media and a mineral-based powder filtration media.

19. (canceled)

20. A method for installing a water filtration unit comprising the acts of:

providing an appliance suitable for incorporation of an insulated structural component; and

embedding at least one water flow component or portion thereof within the insulated structural component.

21. The method of claim 20 wherein the at least one water flow component is selected from the group comprising:

a water filter manifold, a bulkhead fitting, a storage tank, an inlet flow line, an outlet flow line, an inlet valve, an outlet valve, a heat exchanger, a control unit and a wire assembly.

22. The method of claim 20 wherein the insulated structural component is selected from the group comprising:

a wall, a door, a mullion partition and an insulation sheet.

23. The method of claim 20 wherein the at least one filtration component or portion thereof is selected from the group comprising:

an inlet line, an outlet line and a bulkhead fitting.

28. The method of claim 20 wherein embedding the at least one water flow component further comprises the acts of:

positioning a liner and a wall within a form, and

applying insulation to embed the at least one water flow component or portion thereof in a fixed position relative to the liner and the wall.

24-25. -25. (canceled)

27. (canceled)

29-31. -31. (canceled)