Method for preparing and/or monitoring the wet treatment of items of laundry

Patent metadata

Field	Value
Publication number	US-12428767-B2
Application number	US-202418415262-A
Country	US
Kind code	B2
Filing date	Jan 17, 2024
Priority date	Jan 17, 2023
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A method for preparing and/or monitoring the wet treatment of items of laundry wherein the items of laundry are counted using their electronic data carriers. An electronic data carrier of the item of laundry is determined. If more than a single electronic data carrier is detected, this indicates that there are multiple connected items of laundry which do not permit washing. The electronic data carriers can be used to determine the number of items of laundry loaded into a washing machine and the number of items of the same unloaded batch of laundry. If the unloaded batch of laundry has a lower number of electronic data carriers than during loading, this indicates that not all the items have been unloaded from the washing machine and there is a risk of the washing machine becoming blocked.

First claim

The invention claimed is:

1. A method for monitoring the wet treatment of items of laundry, wherein batches are formed from a plurality of items of laundry, each of which has at least one electronic data carrier, and the items of laundry of the respective batch are at least washed together in a washing machine, wherein during loading and unloading of the washing machine, the number of items of laundry of the respective batch is determined by means of their electronic data carriers and the number of items of laundry that is determined during loading is compared with the number of items of laundry that is determined during unloading.

2. The method as claimed in claim 1 , wherein both during loading and unloading of the washing machine, the electronic data carriers of all items of laundry of the respective batch are determined, detected and/or read out in a contactless manner by at least one electromagnetic reading device.

3. The method as claimed in claim 1 , wherein at least one value is read out in a wireless and contactless manner from the electronic data carriers of the items of laundry of the respective batch detected during loading and unloading by the at least one electromagnetic reading device.

4. The method as claimed in claim 1 , wherein the number of electronic data carriers of the items of laundry of each batch of laundry during loading of the washing machine and the number of electronic data carriers of the items of laundry of the same batch of laundry during unloading of the washing machine are determined by at least one reading device upstream and downstream of the washing machine.

5. The method as claimed in claim 1 , wherein, if the at least one electromagnetic reading device detects a different number of electronic data carriers of the same batch of laundry during unloading than during loading of the washing machine, a signal indicating incomplete unloading of the batch of laundry in question is generated.

6. A method for preparing the wet treatment of items of laundry, wherein the items of laundry each having at least one electrical data carrier are checked to see whether they contain at least one other item of laundry or are connected to at least one other item of laundry, wherein the number of electronic data carriers is determined for each item of laundry.

7. The method as claimed in claim 6 , wherein, by detecting the electronic data carriers, it is determined whether at least one further item of laundry is connected to an item of laundry.

8. The method as claimed in claim 6 , wherein it is determined by detecting the electronic data carriers whether and how many items of laundry are interconnected.

9. The method as claimed in claim 6 , wherein the items of laundry are transported one after the other along at least one electromagnetic reading device for contactless and wireless detection of the electronic data carriers of the items of laundry.

10. The method as claimed in claim 6 , wherein at least one value is determined in a contactless and wireless manner by electromagnetic means by reading the electronic data carrier of the respective item of laundry by the at least one electromagnetic reading device of the same.

11. The method as claimed in claim 6 , wherein the simultaneous detection of multiple readable electronic data carriers when a respective separated item of laundry is moved past the at least one reading device is evaluated as an item of laundry which is interconnected to at least one further item of laundry and which must first be separated from at least one connected item of laundry by an additional treatment before the intended treatment.

Assignees

• Kannegiesser H Gmbh Co

Inventors

• Bringewatt Wilhelm
• Heinz Engelbert

Classifications

• D06F93/005

  Marking arrangements · CPC title

• D06F37/12

  adapted for rotation or oscillation about a vertical axis · CPC title

• D06F34/18

  Condition of the laundry, e.g. nature or weight · CPC title

• D06F33/52

  Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry · CPC title

• D06F31/00

  Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies · CPC title