Patent ID: 6889920
Filing Date: 2005-05-10
Classification: B05B,B08B

Abstract:
1. A directed spray mast for cleaning identified or selected surface areas in the interior of closed vessels, pipes, and the like through access ports of relatively small diameters comprising: a) a multi-positionable, rotatable support pipe having upper and lower ends, said pipe having a substantially uniform diameter for insertion into an access port of a vessel to be cleaned; b) lift bail means for supporting and vertically positioning said support pipe and for rotating same for radial positioning; c) a water supply pipe positioned inside of and being substantially coaxial with said support pipe for supplying water, said water supply pipe extending above and below said support pipe and a water supply hose connected to a supply of water for delivering water to said supply pipe; d) a support plate attached to and extending downwardly from the lower end of said water pipe; e) a spray nozzle assembly pivotally mounted to said support plate adjacent said plate's lower end, said assembly extending linearly with and being parallel to said mast pipe in its compact or closed position; f) a submersible, video camera mounted on said nozzle assembly; g) pneumatic actuator means, said means being pivotally mounted on said supply pipe at said pipe's lower end with the other end of said actuator being pivotally attached to said nozzle assembly for raising and lowering the nozzle assembly in response to actuation of the pneumatic means whereby the nozzle assembly is caused to swing outwardly from said support plate to an expanded position of the spray mast and, with camera guidance, the nozzle assembly can be raised, lowered, and rotated to direct water spray to selected interior areas of vessel to be cleaned; h) pneumatic lines operably connected to said pneumatic means, said line being disposed within said support pipe for a portion of their lengths and extending from said pneumatic means to the upper end of said mast pipe; i) a cable line disposed within said mast pipe for a portion of its length and extending from said camera to said upper end of said support pipe; and j) swivel means associated with said lift bail means for receiving said pneumatic and cable lines to permit rotation of said mast without crimping or extangling said lines.