Patent ID: 7806750
Filing Date: 2010-10-05
Classification: B26F,Y10T

Abstract:
1. A method of cutting a wall in the hull of a ship comprising: mounting a water jet cutting head on a support member; attaching said support member to said wall; providing a hollow shaft extending outward from said wall; securing the support member to the shaft, said support member extending at an angle to said shaft; wherein the water jet cutting head is rotatable about said shaft; and movable along the length of the support member providing translatable motion of said water jet cutting head relative to said wall; cutting the wall by supplying water to the water jet cutting head while controlling the translatory movement to follow a non-circular pattern on the wall; removing a section of the wall defined by the pattern; wherein the water supplied to the water jet cutting head is collected on the side of the hull opposite the mounting and returned through the hollow shaft.