US PATENT SUBCLASS 114 / 53
.~.~.~ Camels, caissons, and pontoons

Current as of: June, 1999
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114 /   HD   SHIPS

44  DF  VESSEL RAISING AND DOCKING {3}
50  DF  .~ Submerged {3}
52  DF  .~.~ Air tanks {2}
53.~.~.~ Camels, caissons, and pontoons

DEFINITION

Classification: 114/53

Structures adapted to receive water and be sunk, attached to sunken vessels, and have the water expelled, thus raising the vessel by buoyant force.