Patent ID: 9724738
Date: 2017-08-08
CPC Classifications: B05B,B08B

Claim:
1. A spray cleaning device for cleaning a vessel through an access opening in an underside thereof comprising: a carriage positionable in selected relation to a vessel to be cleaned; an elongated frame supported by said carriage; a rotatable spray head supported in elevated relation to said elongated frame by an upstanding support at a downstream end of said elongated frame; said rotatable spray head having a liquid inlet for communication with a liquid supply; a central drive shaft extending along said elongated frame; a drive at an upstream end of said elongated frame for rotating said central drive shaft; a control for controlling operation of said drive; an angular gear mechanism at a downstream end of said elongated frame operable for rotating said spray head about a central axis of the upstanding support in response to rotatable driving movement of said central drive shaft; a bevel gear mechanism between said rotatable spray head and said upstanding support for rotating said spray head about a transverse axis transverse to the central axis of said upstanding support as an incident to rotatable driving movement of said drive shaft and operation of said angular gearing mechanism; said rotatable spray head having at least one spray nozzle communicating with said spray head inlet for discharging a liquid spray in a direction transverse to the transverse axis of said spray head; and said elongated frame being pivotably supported by said carriage intermediate ends of the elongated frame for facilitating selective vertical positioning of said spray head into the underside opening of the vessel to be cleaned.