Patent ID: 8015848

Claim:
A dishwasher, comprising: a tub for containing dishware to be washed, the tub comprising a plurality of walls that together form a wash cavity; a door operably engaged with the tub; a panel of sound-absorbing material positioned within the door or within, or exterior to, at least one of the plurality of walls for reducing sound emissions from the dishwasher, the panel of sound-absorbing material having a major surface comprising a sound-absorbing surface; wherein the sound-absorbing surface comprises a plurality of convex structures and a plurality of concave structures, the convexity and concavity of which are with respect to a first direction generally normal to the sound-absorbing surface, and wherein the convex structures and the concave structures are spatially arranged to be alternating with one another, wherein the panel further comprises a plurality of protrusions extending outwardly from the sound-absorbing surface from areas between the convex structures and the concave structures.