Evacuation system
OwnerDaniel P. O'Brien, Paul Johnsoninventors
Life of this patent
Estimating the term…
Abstract
A system for launching and retrieving boats from an offshore work platform, the system comprising a deployment arm adapted to be rotatably secured at one end thereof to superstructure of the platform for rotation between a first pre-launch position and a second post-launch position, means for controlling rotation of the arm between the first and second positions, and boat support means mounted adjacent an outer end of the arm, the support means comprising a spaced pair of support members each having thereon an open claw structure for receiving a support pin associated with a respective side of a boat.
Claims27
A system for launching and retrieving from an offshore work platform a boat having support pins extending outwardly thereof, said system comprising:
- a deployment arm adapted to be rotatably secured at one end thereof to superstructure of said platform for rotation between a first pre-launch position in which an outer end of said arm is above the surface of the water and a second post-launch position in which said outer end of said arm is substantially at or below the surface of the water;
- means for controlling rotation of said arm between said first and second positions;
- a pair of spaced support members mounted adjacent said outer end of said arm, each having thereon an open claw structure for receiving a support pin connected to and extending outwardly of a boat to be launched and retrieved,
- said claw structure opening generally upwardly when said deployment arm is in said first pre-launch position and opening upwardly and outwardly when said deployment arm has been rotated to a position in which the outer end thereof is at or near water level,
- said system being free of structure in addition to said deployment arm and support members for connecting said system with a boat.
A system for launching and retrieving boats from an offshore work platform, said system comprising:
- a deployment arm adapted to be rotatably secured at one end thereof to superstructure of said platform for rotation between a first pre-launch position in which an outer end of said arm is above the surface of the water and a second post-launch position in which Said outer end of said arm is substantially at or below the surface of the water;
- means for controlling rotation of said arm between said first and second positions;
- a pair of spaced support members mounted adjacent said outer end of said arm, each having thereon an open claw structure for receiving a support pin connected to and extending outwardly of a boat;
- and
- a boat having a support pin extending transversely from each side thereof, said pins being coaxial and extending beyond any parts of said each side of said boat, and said pins being seated in said open claw structures in said pre-launch position of said deployment arm.
Dependencies are inferred from the claim text.