Arm assembly and methods of passing a pipe from a first vessel to a second vessel using the arm assembly
First Claim
1. ) An arm assembly secured to a vessel comprising:
- a. an arm platform at one end affixed to a lower end of a transom of a vessel;
b. a folding bar affixed to an upper end of the transom of the vessel and a second area of the arm platform;
c. a pair of arm transverse beams removeably affixed to a distal end of the arm platform, across the depth axis;
d. a pair of skidding beams removeably and skidably affixed to the arm transverse beams; and
e. a clamp affixed to a distal end of the arm transverse beam, wherein the clamp has a gate.
2 Assignments
0 Petitions
Accused Products
Abstract
A vessel is provided that is an improvement over previously disclosed jack-up rigs and lift boats. The vessel has at least three thrusters and is self-propelled. The vessel additionally has a raised and hollow crane support on which a crane may be mounted. The crane support is affixed to tracks, which permit the crane to slide along the deck of the vessel. The raised and hollowed feature of the crane support permits the storage of equipment and things beneath the crane support without hindering the movement of the crane along the tracks. Optionally, the vessel further comprises a sub-base structure removably affixed to the transom of the vessel; a base structure removably affixed to the sub-base structure; and a work-over rig removably affixed to the base structure. Also provided herein are methods of using the crane and affixing the sub-base structure, base structure, and work-over rig to the vessel'"'"'s transom.
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Citations
14 Claims
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1. ) An arm assembly secured to a vessel comprising:
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a. an arm platform at one end affixed to a lower end of a transom of a vessel; b. a folding bar affixed to an upper end of the transom of the vessel and a second area of the arm platform; c. a pair of arm transverse beams removeably affixed to a distal end of the arm platform, across the depth axis; d. a pair of skidding beams removeably and skidably affixed to the arm transverse beams; and e. a clamp affixed to a distal end of the arm transverse beam, wherein the clamp has a gate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification