US 12,247,745 B2
Cleaning chemical assembly, cleaning chemical modular system, and cooking appliance
Christian Kufner, Landsberg am Lech (DE); Filip Lindell, Landsberg am Lech (DE); and Manuel Ulmer, Landsberg am Lech (DE)
Assigned to RATIONAL AKTIENGESELLSCHAFT, (DE)
Filed by RATIONAL Aktiengesellschaft, Landsberg am Lech (DE)
Filed on Jul. 7, 2021, as Appl. No. 17/369,721.
Claims priority of application No. 10 2020 117 841.7 (DE), filed on Jul. 7, 2020.
Prior Publication US 2022/0010969 A1, Jan. 13, 2022
Int. Cl. F24C 14/00 (2006.01); B08B 9/093 (2006.01); G06K 7/14 (2006.01)
CPC F24C 14/005 (2013.01) [B08B 9/093 (2013.01); G06K 7/1417 (2013.01); B08B 2209/08 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A cleaning chemical assembly for a cooking appliance, comprising a collection container, a pump, at least two ports for detachably connecting storage containers that contain different cleaning chemicals, and at least one device for identifying the cleaning chemical in the respective storage container,
wherein the device for identifying the cleaning chemical is a switching element that is configured to cooperate with a mechanical coding on the respective storage container to identify the cleaning chemical held within the storage container and mechanically fix the storage container in place in the cleaning chemical assembly,
wherein the switching element includes a plurality of microswitches at the ports,
wherein the cleaning chemical assembly includes, for each port, a flush-out circuit by which the pump can direct liquid from the collection container into the storage container in order to flush out a cleaning solution therefrom, and
wherein the pump is configured to pump liquid to dissolve cleaning chemical from one of the storage containers in a first operating mode and clean the associated flush-out circuit with the liquid in a second operating mode.