Propellar having optimum efficiency in forward and rewarded navigation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 12, 1996
Grant Date -
N/A
app pub date -
Feb 9, 1995
filing date -
May 29, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A propeller in particular for a ship has blades each of which is pivotally arranged in the hub of the propeller so that the blade is capable of pivoting to and fro in an axial plane between forward and rearward positions. The blades are constructed such that each of the blade profiles formed as the intersecting face between a cylinder face coaxial with a propeller and a blade, is symmetrical in a position between forward and rearward positions which are determined by fixed stops in the hub and/or the simultaneous actions of the centrifugal force and the hydrodynamic pressure on the blade at a predetermined speed of rotation. This imparts a high efficiency and a quiet and steady operation to the propeller, when the ship navigates forwardly and rearwardly.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully