Patent ID: 8733136

Claim:
A washing machine comprising: an outer tub; a rotating tub rotatably installed in the outer tub; a water spray device installed at an upper portion of the outer tub to spray washing water; a circulation pump to pump washing water contained in a lower portion of the outer tub; a circulation duct to guide the washing water pumped by the circulation pump to the water spray device; and a drain pump to drain the washing water out of the washing machine, wherein the water spray device comprises a diffusion duct having a channel to diffuse the washing water pumped by the circulation pump around the outer tub; a flat cover coupled to the upper end of the outer tub to cover an opened upper portion of the diffusion duct; a spray member to guide the washing water so as to spray the washing water into the rotating tub; and a water inlet port connected to the circulation duct such that the washing water pumped by the circulation pump is introduced into the water spray device and integrally formed with the diffusion duct.