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US 4,678,446 AGranted
Device for rescuing personnel from waters
AssigneeMobil Oil Corporation
InventorPaul C. Dahan
Life of this patent
Estimating the term…
Abstract
A device for rescuing personnel from water comprising a crane positioned on a boat or other rescue structure and including a horizontally and vertically movable crane boom. An elongated member is vertically movable with respect to the crane boom, and a float is positioned beneath the elongated member for floating on the water. A net extends below the float, and means are provided for supporting the net from the elongated member.
Claims1
A device for rescuing personnel from water comprising:
- a crane on a boat, said crane including a horizontally and vertically movable boom;
- an elongated rigid member vertically and freely movable with respect to said boom;
- means connected to said boom for permitting inward and outward movement of said elongated member along the axis as defined by said crane arm;
- buoyant means operatively connected to said elongated member for floating on the water;
- a net extending below said buoyant means;
- said buoyant means also defining the vertical relative position of said elongated member with respect to said boom while positioning individual(s) in said net;
- and
- means for selectively locking said elongated member relative to said boom when said net is moved to or from said boat and for unblocking said elongated member relative to said boom when said buoyant means and net are placed in water, said permitting means comprising a pair of rails and a gimbal mechanism slidable on said rails, said gimbal mechanism being operatively connected to said elongated member for compensating for motion of said boat and the water surface, whereby said buoyant means and said net follow contour of the water surface.
5 more elements
Dependencies are inferred from the claim text.