Patent ID: 8851576

Claim:
A hydro-demolition facet cutter ( 802 ) for cutting facets in a side of an opening of a structural surface, wherein said hydro-demolition facet cutter comprises: a. a support member ( 309 ), wherein said support member forms a part of or is connected to a carrier or frame; b. a yaw assembly ( 310 ) connected to said support member; c. an arm ( 311 ) having a proximal end ( 311 a ) and a distal end ( 311 b ), wherein said proximal end of said arm is connected to said yaw assembly; d. a nozzle head ( 101 ) connected to said distal end of said arm, wherein said nozzle head comprises at least one nozzle ( 103 ), wherein said yaw assembly allows said arm and said nozzle head to yaw as a unit about a yaw axis ( 700 ); e. one or more drivers ( 506 , 510 ), wherein said one or more drivers move said nozzle head rectilinearly; and, f. a control device ( 810 ), wherein said control device is used remotely to control at least one of movement, position, and orientation of said nozzle head.