The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2013
Filed:
Feb. 16, 2009
Shinichi Takano, Nagasaki, JP;
Shuji Mizokami, Minato-ku, JP;
Seijiro Higasa, Nagasaki, JP;
Shoichi Kameyama, Nagasaki, JP;
Takashi Mine, Nagasaki, JP;
Shinichi Takano, Nagasaki, JP;
Shuji Mizokami, Minato-ku, JP;
Seijiro Higasa, Nagasaki, JP;
Shoichi Kameyama, Nagasaki, JP;
Takashi Mine, Nagasaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A ship-body frictional resistance reducing device for reducing frictional resistance of a sailing ship body by forming an air bubble curtainon a ship's bottom by generating air bubbles includes an air chamberprovided on the ship's bottominside the ship body, a plurality of air ejection holes formed in an arrayed manner on the ship's bottomthat becomes a bottom portion of the air chamber, and a sea chestprovided on the ship's bottominside the ship body in a manner such that the sea chestcovers the air chamber. With this configuration, it is possible to perform maintenance of the air chamber, and at the same time, it is possible to take a watertight structure to prevent ingress of the sea water into the ship body.