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Title:
PROPELLER GUARD
Document Type and Number:
Japanese Patent JP2014046698
Kind Code:
A
Abstract:

To provide a propeller guard capable of reducing propulsion resistance and increasing propulsion force of a vessel with a simple structure.

A propeller guard is disposed at a distance from a propeller 1 around the propeller to protect the propeller that propels the traveling of a vessel. The propeller guard has a double pipe structure composed of an inner member 2-2 and an outer member 2-1, and the double pipe interior formed between the inner member and the outer member is either hollow or is filled with a foam 2-3.


Inventors:
MATSUO MAKOTO
Application Number:
JP2012188446A
Publication Date:
March 17, 2014
Filing Date:
August 29, 2012
Export Citation:
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Assignee:
IMOTT CO LTD
International Classes:
B63H5/16
Domestic Patent References:
JPS56138092A1981-10-28
JP2008024072A2008-02-07
JPH01161998U1989-11-10
JP2011042201A2011-03-03
JPH0921658A1997-01-21
JP3145444B22001-03-12
JP2011218915A2011-11-04
JP2009513421A2009-04-02
JPS55178497U1980-12-22
JPS6232896U1987-02-26
JPS5863593A1983-04-15
Foreign References:
US20100311290A12010-12-09
EP1990273A22008-11-12
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Yoshihiro Kobayashi
Goji Tasaki



 
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