Patent ID: 9387528
Filing Date: 2016-07-12
CPC Classification: B05B,B21B,F02M,F16K

Claim Text:
1. A nozzle for spraying water over a targeted object, comprising: a nozzle body provided with a passage of the water; and a valve arranged inside the passage of the nozzle body; and a sealing material that is provided for at least part of an outer peripheral surface of the valve, wherein at least a part of an inner surface of the passage, the part of an inner surface including a portion to have contact with the valve, is coated by diamond-like carbon, at least another part of an inner surface of the passage, said another part of an inner surface including a portion to have contact with the sealing material, is coated by diamond-like carbon, and the portion to have contact with the sealing material is a portion where the sealing material is always in contact with the inner surface of the passage and the portion to have contact with the sealing material on the inner surface of the passage slides with the valve in accordance with opening and closing of the valve.