Underwater crane
OwnerPei Wen Chunginventor
Life of this patent
Estimating the term…
Abstract
An underwater crane is provided with a float ball including arc member on a bottom, and a ring attached to the arc member; and a plurality of weights each including a rope having a hook member at an open end, the hook member being secured to the arc member. In a salvaging operation, a diver may temporarily secure the ring to a structure sunk to, for example the sea floor, the diver may disengage the hook members from the arc member, and finally, the weights are rested on the sea floor and the float ball and the structure together move upward until the float ball reaches the surface of the sea due to buoyancy of the float ball.
Claims4
An underwater crane comprising:
- a float ball including an arc member directly installed on a bottom thereof, and a ring attached to the arc member, wherein a structure sunk to a sea or river floor is directly secured to the ring;
- and
- a plurality of weights each including a rope having a hook member at an open end, the hook member being directly secured to the arc member so that the plurality of weights are attached to the arc member.
Dependencies are inferred from the claim text.