Articulated boom and head for manipulating objects under water

• US 6,024,145 A
• Filed: 04/08/1999
• Issued: 02/15/2000
• Est. Priority Date: 04/08/1998
• Status: Active Grant

• Current Assignee: Gary Ackles
• Original Assignee: Gary Ackles
• Inventors: Ackles, Gary
• Primary Examiner(s): BRAY, WAYMOND D
• Application Number:
  US09/288,755
• Time in Patent Office: 313 Days
• Field of Search: 56/8, 30/228, 47/1.4, 83/694, 83/928, 83/743, 83/830, 144/4.1, 144/34.1, 144/34.5, 144/335, 144/336, 144/356, 144/357, 144/382, 210/159, 210/170, 210/241, 210/242.1
• US Class Current: 144/382
• CPC Class Codes: A01G 23/08 Felling trees
• CPC Class Codes: B23D 57/0084 specially adapted for sawing under water or at places accessible with difficulty
• CPC Class Codes: Y10S 83/928 Vehicle-mounted tool

Abstract

The articulated boom and utility head for manipulating objects underwater of the present invention includes an articulated arm mounted at a first end thereof to a free floating platform, and a remotely operable utility head mountable at a second end of the arm. At least one sensor for relaying sensed information from the sensor to a remote operator or processor is mounted to the articulated arm. The sensed information is transmitted in real time as the arm remotely operated under water.

Claims

1. An articulated boom and utility head for manipulating objects underwater, comprising:

a free floating platform;

an articulated arm mounted at a first end thereof to said platform;

a remotely operable utility head mountable at a second end of said arm;

at least one sensor mounted to said articulated arm to provide information to a remote operator as said arm is remotely operated under water;

means for stabilizing said second end of said articulated arm so that said utility head, when mounted to said second end, maintains a substantially fixed position relative to an underwater object, independent of movement of said first end of said arm.

2. The device of claim 1 wherein said at least one sensor comprises a position sensor and an imaging sensor.

3. The device of claim 1 wherein said imaging sensor is a visual sensor mounted on said arm in proximity to said second end of said arm and is aligned to provide said remote operator with a field of view in front of said utility head.

4. The device of claim 3 further comprising a means for dispersing suspended detritus, which detritus would, if not dispersed, occlude said field of view.

said means for dispersing detritus mounted to said arm in proximity to said second end.

5. The device of claim 4 wherein said means for dispersing detritus comprises a clear water manifold mounted on said boom in proximity to said utility head,

said manifold supplied with clear water under pressure, by a water conduit from a water source remote from said second end,

a plurality of nozzles mounted on said manifold and aligned to direct said clear water into said field of view of said imaging sensor.

6. The device of claim 5 wherein said clear water manifold is pivotally mounted to said boom, a manifold actuator mounted between said manifold and said boom for selective pivoting of said manifold according to remote control inputs by said operator.

7. The device of claim 1 wherein said boom is a longitudinally extending array of elongate, pivotally linked, rigid boom segments, said boom segments pivotally linked at their ends, boom segment actuators cooperating between adjacent boom segments and remotely actuable by said operator.

8. The device of claim 1 wherein said at least one sensor includes rotary transducers mounted at articulated joints between said boom segments,

said rotary transducers for sensing relative rotational movement of said boom segments about said joints and for providing a corresponding signal for transmission to a remote location for use by said operator.

9. The device of claim 7 wherein said boom segments are rotated relative to one another by actuation of hydraulic rams and said hydraulic rains are actuated by means of a primary hydraulic circuit, and wherein said means for stabilizing said second end comprises a hydraulic float circuit cooperating with said primary hydraulic circuit.

10. The device of claim 1 wherein said utility head comprises selectively operable claws.

11. The device of claim 1 wherein said utility head comprises a selectively operable clam shell rake.

12. The device of claim 1 wherein said utility head comprises a selectively operable overpack.

13. The device of claim 1 wherein said utility head comprises a selectively operable suction dredge.

14. The device of claim 1 wherein said utility head comprises a selectively articulatable viewing arm.

15. The device of claim 1 wherein said utility head comprises a selectively operable core sampling head.

16. The device of claim 1 wherein said utility head comprises an extraction head.

17. The device of claim 1 wherein said utility head comprises a selectively operable vibrator head.

18. The device of claim 1 wherein said utility head comprises a selectively operable grout application head.

19. The device of claim 1 wherein said utility head comprises a selectively operable surface cleaning head.

47. The device of claim 1 wherein said boom is maintained in a neutral buoyancy state by hollow air filled tanks mounted near said second end of said boom.

20. An articulated boom and manipulatable utility head for underwater operation when deployed from a floating vessel, comprising:

a plurality of boom segments,

each boom segment of said plurality of boom segments pivotally mounted at ends thereof to adjacent boom segments,

a first end of said articulated boom mountable to said floating vessel,

a second end of said articulated boom, opposite said first end, adapted for mounting of said manipulatable utility head thereon,

first actuators mounted between said adjacent boom segments for selective relative rotation of said adjacent boom segments relative to each other,

second actuators cooperating with said second end of said boom and said utility head when mounted thereon for selective actuation of said utility head,

at least one sensor mounted to said boom for relaying sensed information to a remote operator, said first and second actuators remotely actuable by control inputs from said operator.

21. The device of claim 20 wherein said at least one sensor comprises at least one position sensor mounted to said boom to provide boom position information to said operator, and an imaging sensor to provide environmental information to said operator from an underwater environment in proximity to said utility head.

22. The device of claim 21 wherein said imaging sensor is a visual imaging camera and said device further comprises a means for clearing a field of view of said camera.

23. The device of claim 22 wherein said means for clearing a field of view of said camera comprises means for injecting clear water into said field of view of said camera.

24. The device of claim 23 wherein said means for injecting clear water into said field of view of said camera comprises at least one water nozzle mounted adjacent said second end of said boom, a pressurized water supply coupled to said at least one water nozzle.

25. The device of claim 24 wherein said means for injecting clear water into said field of view of said camera further comprises a water manifold mounted to said boom adjacent said second end, said at least one waiter nozzle mounted to, so as to cooperate with, said water manifold, said water supply coupled to, so as to cooperate with, said water manifold.

26. The device of claim 25 wherein said water manifold is a rigid container pivotally mounted to said boom, a third actuator mounted between said rigid container and said boom for selective pivoting of said at least one water nozzle so as to direct a stream of water from said at least one nozzle into said field of view.

27. The device of claim 21 wherein said boom segments of said plurality of boom segments are pivotally mounted to each other by a corresponding array of elbow joints mounted between said boom segments,

and wherein said at least one position sensor comprises an array of rotational sensors mounted correspondingly to said array of elbow joints, said rotational sensors for sensing relative positions of said boom segments.

28. The device of claim 20 further comprising means for stabilizing said second end of said boom so as to maintain a substantially constant position of said utility head relative to an underwater object independent of movement of said floating vessel.

29. The device of claim 28 wherein said means for stabilizing said second end of said boom is a hydraulic float circuit cooperating with a primary hydraulic circuit, said primary hydraulic circuit for actuating said first actuators.

30. The device of claim 20 wherein said at least one sensor comprises an imaging sensor to provide environmental information to said operator from an underwater environment in proximity to said utility head.

31. The device of claim 30 wherein said imaging sensor is a visual imaging camera and said device further comprises a means for clearing a field of view of said camera.

32. The device of claim 31 wherein said means for clearing a field of view of said camera comprises means for injecting clear water into said field of view of said camera.

33. The device of claim 32 wherein said means for injecting clear water into said field of view of said camera comprises at least one water nozzle mounted adjacent said second end of said boom, a pressurized water supply coupled to said at least one water nozzle.

34. The device of claim 33 wherein said means for injecting clear water into said field of view of said camera further comprises a water manifold mounted to said boom adjacent said second end, said at least one water nozzle mounted to, so as to cooperate with, said water manifold, said water supply coupled to, so as to cooperate with, said water manifold.

35. The device of claim 34 wherein said water manifold is a rigid container pivotally mounted to said boom, a third actuator mounted between said rigid container and said boom for selective pivoting of said at least one water nozzle so as to direct a stream of water from said at least one nozzle into said field of view.

36. The device of claim 20 wherein said utility head comprises selectively operable claws.

37. The device of claim 20 wherein said utility head comprises a selectively operable clam shell rake.

38. The device of claim 20 wherein said utility head comprises a selectively operable overpack.

39. The device of claim 20 wherein said utility head comprises a selectively operable suction dredge.

40. The device of claim 20 wherein said utility head comprises a selectively articulatable viewing arm.

41. The device of claim 20 wherein said utility head comprises a selectively operable core sampling head.

42. The device of claim 20 wherein said utility head comprises an extraction head.

43. The device of claim 20 wherein said utility head comprises a selectively operable vibrator head.

44. The device of claim 20 wherein said utility head comprises a selectively operable grout application head.

45. The device of claim 20 wherein said utility head comprises a selectively operable surface cleaning head.

46. The device of claim 20 wherein said relaying of said sensed information to said remote operator is in real time.

48. The device of claim 20 wherein said boom is maintained in a neutral buoyancy state by hollow air filled tanks mounted near said second end of said boom.