Patent ID: 9353501
Filing Date: 2016-05-31
CPC Classification: B63C,E02F,E21C

Claim Text:
1. A subsea excavation apparatus comprising: an excavator; a surface platform; a guide frame; a first anchor point in a fixed location on the seabed; a second anchor point in a fixed location on the seabed; a first anchor cable attached at a first end to the guide frame and a second end to the first anchor point; a second anchor cable attached at a first end to the guide frame and a second end to the second anchor point; a first subsea excavator actuator attached to the excavator and the guide frame for converting power to mechanical force between the guide frame and the excavator in a first dimension; a second subsea excavator actuator attached to the excavator and the guide frame for converting power to mechanical force between the guide frame and the excavator in a second dimension; a first guide frame actuator attached to the surface platform and the guide frame for converting power to mechanical force between the surface platform and the guide frame.