Patent ID: 9707355
Date: 2017-07-18
CPC Classifications: A61M,B05B,B05D

Claim:
1. A method of coating an exterior surface of an elongate object with a coating material, the method comprising: inserting the elongate object into a top of an elongate chamber having a bottom defining an outlet opposite the top; directing pressurized air into a mixing passage through a plurality of air directing passages, the mixing passage having a first end and a second end spaced from the first end along a central axis, wherein the pressurized air is directed into the mixing passage in a central direction that extends parallel to the central axis of the mixing passage, and wherein the pressurized air swirls about the central axis of the mixing passage from the first end to the second end of the mixing passage; directing the coating material into the mixing passage from the first end to the second end of the mixing passage, wherein the coating material is directed into the mixing passage in the central direction; mixing the pressurized air and the coating material in the mixing passage to form a mist; and spraying the mist into the elongate chamber to coat the exterior surface of the elongate object with the coating material, the mist being directed around the exterior surface of the elongate object in the elongate chamber and toward the outlet of the elongate chamber.