Cartridge and water-conducting domestic appliance comprising a detergent dosing system for a cartridge

• US 8,980,014 B2
• Filed: 08/29/2007
• Issued: 03/17/2015
• Est. Priority Date: 09/19/2006
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Classen, Egbert, Jerg, Helmut
• Primary Examiner(s): Markoff, Alexander
• Application Number:
  US12/311,095
• Publication Number:
  US 20100012161A1
• Time in Patent Office: 2,757 Days
• Field of Search: 134/18, 134/25.2, 134/56.R, 134/57.D, 134/56.D, 134/58.D
• US Class Current: 134/58.D
• CPC Class Codes: A47L 15/44 Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
• CPC Class Codes: A47L 15/4409 by tipping containers or opening their lids, e.g. with the help of a programmer
• CPC Class Codes: A47L 15/4418 in the form of liquids A47L15/4409, A47L15/4436, A47L15/4445 take precedence
• CPC Class Codes: A47L 15/4445 Detachable devices
• CPC Class Codes: A47L 15/4454 with automatic identification means, e.g. barcodes, RFID tags or magnetic strips
• CPC Class Codes: A47L 15/4463 Multi-dose dispensing arrangements
• CPC Class Codes: A47L 15/4472 Blister packaging or refill cartridges
• CPC Class Codes: A47L 15/449 Metering controlling devices A47L15/4229 takes precedence

Abstract

A cartridge for use in a detergent-dosing system of a water-conducting domestic appliance, in particular, a cartridge for use in a domestic dishwasher of the type having a detergent dispenser configured with a holding space for holding the cartridge, the cartridge including at least a pair of chambers, each chamber for holding a detergent separate from any detergent held by another chamber; and a pair of seals, each seal being associated with a respective one of the chambers for substantially precluding discharge of a detergent retained by the respective chamber and each seal being configured to be opened at least once for a discharge of detergent from the respective chamber and to be closed again at least once.

Claims

1. A cartridge for use in a detergent-dosing system of a domestic dishwasher having a washing compartment and a detergent dispenser, the detergent dispenser being configured with a holding space for holding the cartridge, the cartridge comprising:

at least two chambers, each chamber configured to hold a cleaning liquid separate from any cleaning liquid held by another one of the chambers;

at least two seals, each seal being fluidly connected to a respective one of the chambers for substantially precluding discharge of a cleaning liquid retained by the respective chamber, each seal being an elastic membrane or an elastic film, and each seal being configured to be opened at least once for a discharge of cleaning liquid from the respective chamber and to be closed at least once after being opened;

a common cover covering the at least two chambers, the common cover including a ventilation channel in the cover extending across the at least two chambers; and

a ventilating chamber disposed in a housing of the cartridge between two of the at least two chambers, the ventilation chamber being connected with the at least two chambers via the ventilation channel, the ventilation chamber being without an openable closure,

wherein each seal is configured for respectively opening automatically by a piercing of the elastic membrane or the elastic film of the seal when the cartridge is inserted into the detergent container and closing automatically by the elastic property of the elastic membrane or elastic film closing the piercing when the cartridge is removed from the detergent dispenser.

2. The cartridge according to claim 1 wherein each seal is located at a place corresponding to an opening means of the detergent dispenser when the cartridge is inserted into the detergent dispenser, wherein the seal is configured to be in an opened position in which the cleaning liquid can be added to the washing compartment of the dishwasher during a washing cycle by the detergent-dosing system when the cartridge is in the detergent dispenser.

3. The cartridge according to claim 1 wherein the cartridge is configured such that when the cartridge is inserted into the detergent dispenser the seal will be located at a place corresponding to a hollow needle of the detergent dispenser so that the seal will be pierced by the needle.

4. The cartridge according to claim 1 wherein a cleaning liquid is stored in one of the at least two chambers of the cartridge.

5. The cartridge according to claim 1 and further comprising at least one conveying device for conveying at least one cleaning liquid into the washing compartment of the domestic dishwasher.

6. The cartridge according to claim 5 wherein the cartridge has a number of the conveying devices and a number of the at least two chambers, and the number of conveying devices equals the number of the at least two chambers.

7. The cartridge according to claim 1 wherein the cartridge has a mechanical coding configured for interaction with a counter-coding on a receptacle side of the holding space for defining an installed position of the cartridge in the domestic dishwasher.

8. The cartridge according to claim 1 wherein the cartridge has a longitudinal extent along a first direction.

9. The cartridge according to claim 8 wherein the cartridge is longer along the first direction than it is along a second direction of the cartridge, wherein the second direction is non-parallel to the first direction.

10. The cartridge according to claim 8 wherein the chambers of the cartridge are arranged adjacent one another along the first direction.

11. The cartridge according to claim 1 wherein at least one of the chambers has its contents selected from the group consisting of enzymes, bleaching agents, bleach activators, dispersing and complexing agents, tensides, alkali-bearing substances and biocides.

12. A domestic dishwasher, comprising:

a washing compartment;

a detergent-dosing system having a detergent dispenser, the detergent dispenser having a holding space; and

a cartridge, the cartridge having

at least two chambers, each chamber configured to hold a cleaning liquid separate from any cleaning liquid held by another one of the chambers;

at least two seals, each seal being fluidly connected to a respective one of the chambers for substantially precluding discharge of a cleaning liquid retained by the respective chamber, each seal being elastic membrane or an elastic film, and each seal being configured to be opened at least once for a discharge of cleaning liquid from the respective chamber and to be closed at least once after being opened;

a common cover covering the at least two chambers, the common cover including a ventilation channel in the cover extending across the at least two chambers; and

a ventilating chamber disposed in a housing of the cartridge between two of the at least two chambers, the ventilation chamber being connected with the at least two chambers via the ventilation channel, the ventilation chamber being without an openable closure

wherein the holding space holds the cartridge, and

each seal is configured for respectively opening automatically by a piercing of the elastic membrane or the elastic film of the seal when the cartridge is inserted into the detergent container and closing automatically by the elastic property of the elastic membrane or the elastic film closing the piercing when the cartridge is removed from the detergent dispenser.

13. The domestic dishwasher according to claim 12 wherein the detergent-dosing system has a dosing chamber that is arranged such that a fluid connection between the cartridge and the dosing chamber is established by a hollow needle.

14. The domestic dishwasher according to claim 12 wherein the detergent-dosing system has an opening assembly formed by at least one hollow needle configured to pierce the seal when the cartridge is inserted into the holding space.

15. The domestic dishwasher according to claim 12 wherein a retention device for securing the cartridge and fixing it in position is provided on the detergent dispenser.

16. The domestic dishwasher according to claim 15 wherein the retention device is formed as a receptacle formed on a cover of the detergent dispenser, configured for movement between an open position and a closed position for placing the holding space in a closed position.

17. The domestic dishwasher according to claim 12 and further comprising a positioning device for positioning the cartridge in the detergent dispenser.

18. The domestic dishwasher according claim 12 wherein the detergent-dosing system has at least one outlet that is functionally linked to a washing compartment and through which a specified amount of detergent can be ducted to a washing fluid during a washing cycle, with the at least one outlet being provided on the detergent dispenser.

19. The domestic dishwasher according to claim 18 and further comprising at least one outlet disposed on a housing section of the detergent dispenser, wherein the housing section is located in the direction of gravity below the holding space.

20. The domestic dishwasher according to claim 18 wherein the at least one outlet of the detergent-dosing system feeds into a dosing chamber that is functionally linked to the detergent.

21. The domestic dishwasher according to claim 20 wherein the dosing chamber is assigned a conveying device by which the detergent can be ducted to the washing compartment from the cartridge.

22. The domestic dishwasher according to one of claim 12 wherein the detergent-dosing system has a solid detergent chamber for holding a solid detergent.

23. The domestic dishwasher according to claim 12 wherein the detergent-dosing system is located in a side wall of the washing compartment between a top basket and a bottom basket.

24. The domestic dishwasher according claim 12 wherein the detergent-dosing system is located on a door and configured to swivel with respect to the washing compartment of the domestic dishwasher.

25. The domestic dishwasher according to claim 24 wherein the detergent-dosing system is embodied on the door such that the detergent dispenser will be fitted with the cartridge from an edge surface of the door.

26. The domestic dishwasher according to claim 25 wherein the detergent dispenser is fitted with the cartridge in at least one of a region of an inner door and the region of a cover panel on the door.

27. A detergent-dosing system for use in a domestic dishwasher, the system comprising:

a cartridge; and

a detergent dispenser that has at least one holding space for holding the cartridge,

wherein the cartridge has

at least two chambers, each chamber configured to hold a cleaning liquid separate from any cleaning liquid held by another one of the chambers;

at least two seals, each seal being fluidly connected to a respective one of the chambers for substantially precluding discharge of a cleaning liquid retained by the respective chamber, each seal being an elastic membrane or an elastic film, and each seal being configured to be opened at least once for a discharge of cleaning liquid from the respective chamber and to be closed at least once after being opened;

a common cover covering the at least two chambers, the common cover including a ventilation channel in the cover extending across the at least two chambers; and

a ventilating chamber disposed in a housing of the cartridge between two of the at least two chambers, the ventilation chamber being connected with the at least two chambers via the ventilation channel, the ventilation chamber being without an openable closure, and

each seal is configured for respectively opening automatically by a piercing of the elastic membrane or the elastic film of the seal when the cartridge is inserted into the detergent container and closing automatically by the elastic property of the elastic membrane or elastic film closing the piercing when the cartridge is removed from the detergent dispenser.