US 12,421,644 B2
Washing machine and method for operating a washing machine
Antonio Di Maggio, Schwaigern (DE); and Uwe Schaumann, Oberderdingen (DE)
Assigned to E.G.O. Elektro-Geraetebau GmbH, Oberderdingen (DE)
Filed by E.G.O. Elektro-Geraetebau GmbH, Oberderdingen (DE)
Filed on Jul. 14, 2023, as Appl. No. 18/352,397.
Claims priority of application No. 10 2022 207 456.4 (DE), filed on Jul. 21, 2022.
Prior Publication US 2024/0026590 A1, Jan. 25, 2024
Int. Cl. D06F 35/00 (2006.01); D06F 39/06 (2006.01); D06F 39/08 (2006.01); D06F 103/14 (2020.01); D06F 105/06 (2020.01)
CPC D06F 35/006 (2013.01) [D06F 39/06 (2013.01); D06F 39/085 (2013.01); D06F 39/088 (2013.01); D06F 39/083 (2013.01); D06F 2103/14 (2020.02); D06F 2105/06 (2020.02)] 13 Claims
OG exemplary drawing
 
1. A washing machine comprising:
a drum for washing laundry therein,
a drum-receiving container in which said drum is arranged rotatably about an axis of rotation,
a water routing system comprising:
a water inlet from an external water supply into said washing machine,
water lines and valves,
a water outlet from said washing machine,
an input device for water into said drum,
at least one container drain at said bottom of said drum-receiving container, and
a pump which is connected by way of water lines to said container outlet and to said input device, and
a washing machine controller to which said pump is connected,
wherein
a valve is arranged at said container drain on said drum-receiving container, which valve seals said drum-receiving container in a watertight and airtight manner,
an air inlet is arranged in said upper region of said drum-receiving container, said air inlet being closable in airtight manner by way of an air inlet valve, and
at least one nonreturn valve is also provided at an upper region of said drum-receiving container, wherein said nonreturn valve allows suds to pass therethrough out of said drum-receiving container.