Water-circulating household appliance with an embossed washing drum
AssigneeBSH Bosch und Siemens Hausgerate GmbH
InventorsMarcus Exler, Johannes Geyer, Reinhard Heyder, Alfred Nitsche, Patrick Schüler, Stephan Sommer, Wilfried Wildung
Life of this patent
Estimating the term…
Abstract
The invention relates to a water-circulating household appliance that may be, for example a washing machine, washer-drier, or clothes drier. The household appliance includes a rotatably mounted washing drum with a drum casing and a drum cover face. The washing drum is embossed with protrusions in the form of embossments whose edges are ellipsoidal.
Claims18
1-19. (canceled)
A drum for imparting movement to items disposed therein while the drum is moved about a drum axis, the drum comprising:
- a.) a drum casing extending angularly around a drum axis, the drum casing having nominal surfaces extending along a predetermined angular circumference that is at a nominal radial spacing from the drum axis;
- b.) a drum cover extending radially and located at one axial end of the drum casing, the drum cover and the drum casing together delimiting an interior volume and the drum cover having nominal surfaces extending along a predetermined nominal radial plane and the drum cover having an inward facing cover surface that faces in the axial direction toward the interior volume;
- and
- c.) a plurality of protrusions disposed on at least one of the drum casing and the drum cover, each protrusion having a base edge that is generally ellipsoidal in shape and each protrusion protruding inwardly from its base edge toward the interior volume, as viewed relative to the nominal surfaces of the respective one of the drum casing and the drum cover on which the protrusion is disposed, and the protrusions being at a relatively minimal spacing from adjacent other protrusions with the protrusions at this relatively minimal spacing arrangement delimiting channel-like interstitial configurations between adjacent protrusions.
A washing drum comprising:
- a drum casing;
- at least one drum cover face;
- and
- embossed sections formed on the washing drum, the embossed sections being directed inward and having ellipsoidal edges and the embossed sections being arranged at a minimum distance from one another, thereby forming channel-like cavities.
Dependencies are inferred from the claim text.