Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DRAG REDUCING DEVICE FOR OFFSHORE STRUCTURE INCLUDING PILLAR SHAPED MEMBER
Document Type and Number:
Japanese Patent JP2003054486
Kind Code:
A
Abstract:

To greatly reduce drag in a tidal current and waves or the like by sliding a cover 1 on a cylindrical pillar member 2 in case of receiving the tidal current or waves from a direction of an arrow (1) which is parallel with a major axis of the cover 1, sliding the cover 1 in a reverse direction of the direction mentioned above in a case of receiving the tidal current or waves from a reverse direction of the arrow (1), and rotating the cover 1 around the cylindrical pillar member 2 to a state indicated with chain line in case that a direction of flow changes from the direction indicated by the arrow (1) to an arrow (2).

The cover 1 of ellipse or a shape similar to the same is slidably, or rotatably or slidably and rotatably arranged on the cylindrical pillar member 2 of an offshore structure.


Inventors:
ASO YUJI
OTANI RYOICHI
TAKAMI TAKESHI
Application Number:
JP2001247629A
Publication Date:
February 26, 2003
Filing Date:
August 17, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZENI LITE BUOY CO LTD
OYO CORP
International Classes:
E02B17/00; B63B22/18; (IPC1-7): B63B22/18; E02B17/00
Domestic Patent References:
JPS5495499A1979-07-27
JPS56120842A1981-09-22
JPS5613278A1981-02-09
JPS62129486U1987-08-15
JPS5850291A1983-03-24
JPS56105092A1981-08-21
JPS62129486U1987-08-15
JPS5850291A1983-03-24
JPS56105092A1981-08-21
JPS5495499A1979-07-27
JPS56120842A1981-09-22
JPS5613278A1981-02-09
Attorney, Agent or Firm:
Kunihiko Fujita (2 outside)