Title:
BUOYANCY DEVICE HAVING MULTI-LAYER OF AIR
Document Type and Number:
Japanese Patent JP2018014992
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a buoyancy device of a multi-layered air structure capable of maintaining buoyancy over a long period of time even when the buoyancy device is partially damaged by an external impact, which can be manufactured easily, and also can be repaired easily by a user at low cost since a damaged buoyancy device can be reused.SOLUTION: There is provided a buoyancy device of a multi-layered air structure. The buoyancy device includes a cylindrical sealing case forming an internal hollow section sealed from outside, and a buoyancy member put in the hollow section, forming a plurality of air-filled spaces between two vinyl sheets.SELECTED DRAWING: Figure 2
Inventors:
PARK YONG JOO
HANG SUN WANG
MYOUNG JUNG GOO
CHOI HYEJUNG
HANG SUN WANG
MYOUNG JUNG GOO
CHOI HYEJUNG
Application Number:
JP2016249385A
Publication Date:
February 01, 2018
Filing Date:
December 22, 2016
Export Citation:
Assignee:
KOREA INST OCEAN SCI & TECH
International Classes:
A01K61/60; B63B22/00
Domestic Patent References:
| JPS3914550B1 | ||||
| JPS5360299U | 1978-05-23 | |||
| JP2000296872A | 2000-10-24 | |||
| JPH06217662A | 1994-08-09 | |||
| JP2015536679A | 2015-12-24 | |||
| JPS565459U | 1981-01-19 |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation