Patent ID: 8899167
Filing Date: 2014-12-02
Classification: B26D,B63C,B63G,Y10T

Abstract:
1. A cutting apparatus for an underwater vehicle comprising a housing structure attached at a forward end of the underwater vehicle, the housing structure containing a cutting unit wherein the cutting unit comprises an elongated opening on a surface of the housing structure to enable a cutter arm to rotate out of the housing structure in a forward arc, and wherein the cutter arm comprises a first blade configured to rotate about a drive shaft and a second blade parallel to the first blade and capable of moving linearly back and forth across the first blade, the first and second blades having substantially the same length and a plurality of reciprocating teeth; and the cutting unit further comprises an assembly for moving the second blade linearly back and forth across the first blade and for rotating the cutter arm in a forward arc about the drive shaft, wherein the cutter arm is able to rotate at least 225 degrees about the drive shaft.