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

• US 9,723,965 B2
• Filed: 01/12/2017
• Issued: 08/08/2017
• Est. Priority Date: 09/19/2006
• Status: Active Grant

• Current Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Inventors: Jerg, Helmut, Classen, Egbert
• Primary Examiner(s): Markoff, Alexander
• Application Number:
  US15/404,249
• Publication Number:
  US 20170119230A1
• Time in Patent Office: 208 Days
• CPC Class Codes: A47L 15/0055 Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration
• 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
• CPC Class Codes: D06F 39/022 in a liquid state D06F39/024 takes precedence

Abstract

A cartridge for a water-conducting domestic appliance, in particular a domestic dishwasher, which has a detergent dosing system having at least one detergent dispenser for receiving at least one cartridge, wherein the cartridge has separate chambers for storing at least two detergents, the cartridge including a cartridge housing having at least two chambers formed therein, wherein each chamber has a storage capacity for storing detergent which is greater than the quantities required for one washing cycle.

Claims

1. A method for dosing detergent from a cartridge for a water-conducting domestic appliance, the appliance including a detergent dosing system having at least one detergent dispenser for receiving the cartridge, wherein the cartridge has a cartridge housing with at least two chambers for storing at least two detergents, the method comprising:

storing detergent in the at least two chambers in amounts that are greater than a quantity required for one washing cycle;

dispensing the detergent via the detergent dosing system;

measuring a level of detergent in only a single one of the at least two chambers in order to obtain information about a fill level of only the single one of the at least two chambers; and

deducing a fill level in all of the at least two chambers based on the information obtained about the fill level of only the single one of the at least two chambers.

2. The method according to claim 1 further comprising emitting a signal when detergent contained in the cartridge is reduced below a predefined remaining quantity.

3. The method according to claim 2 wherein the emitting step is practiced by emitting the signal when the detergent contained in the cartridge is sufficient for performing a predefined number of washing cycles.

4. The method according to claim 1, wherein, when conducting the measuring and deducing steps, the volume of the at least two detergents in respective ones of the at least two chambers is dimensioned such that each of the at least two detergents in the respective ones of the at least two chambers is used up by the z-th washing cycle, and in each washing operation an equal percentage proportion of the at least two detergents is dosed by the detergent dosing system.