US Patent 9635994 Spray arm assembly for dishwasher appliance

A spray arm assembly includes a spray arm including a plurality of branches connected to each other and arrayed about a center point, each of the plurality of branches defining a passage therethrough and an aperture in fluid communication with the passage. The center point defines a spray arm central axis. The spray arm is rotatable about the spray arm central axis. The spray arm assembly further includes a base conduit defining a passage therethrough, the base conduit defining a base conduit central axis. The spray arm assembly further includes an intermediate conduit connecting the base conduit and the spray arm, the intermediate conduit defining a passage in fluid communication between the passage of the base conduit and the passages of the plurality of branches. The intermediate conduit is rotatable about the base conduit central axis. The spray arm central axis is offset from the base conduit central axis.