Title:
UNDERWATER TRANSPORTATION METHOD
Document Type and Number:
Japanese Patent JP2018188148
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an underwater transportation method capable of realizing a work safer than a conventional pressure-proof buoy.SOLUTION: An underwater transportation method of transporting an aluminum anode 200 by using a pressure-resistant container 100 equipped with a first on-off valve 20 and a second on-off valve 30 on the outer wall part is an underwater transportation method of transporting the pressure-resistant container 100 and the aluminum anode 200 to an underwater predetermined position in a coupled state to hook the aluminum anode at the predetermined position, and to vent air inside the pressure-resistant container and inject water into the pressure-resistant container by opening the first and second on-off valves 20, 30 for a predetermined period, thereby making a force of the pressure-resistant container to tend to float up smaller than before opening the first and second on-off valves 20, 30, and decoupling the water-injected pressure-resistant container 100 from the aluminum anode 200 to transport the decoupled pressure-resistant container 100 to a water surface.SELECTED DRAWING: Figure 3
Inventors:
OKAMOTO NOBUAKI
Application Number:
JP2018157217A
Publication Date:
November 29, 2018
Filing Date:
August 24, 2018
Export Citation:
Assignee:
KAIYO ENG KK
International Classes:
B63C11/00; B63B22/00; C23F13/02; C23F13/06; F16J12/00
Attorney, Agent or Firm:
Shin Osaka International Patent Office