Propeller for vessel propulsion apparatus and vessel propulsion apparatus including the same
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United States of America Patent
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Oct 3, 2017
Issued Date -
N/A
app pub date -
Apr 13, 2015
filing date -
May 20, 2014
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A propeller includes a bushing that rotates together with the propeller shaft, and a propeller damper disposed around the bushing, and an inner cylinder that surrounds the bushing via the propeller damper. The bushing includes a first cylindrical portion surrounding the propeller shaft, and a first protrusion protruding outward from the first cylindrical portion and integral with the first cylindrical portion. The inner cylinder includes a second cylindrical portion surrounding the bushing via the propeller damper and a second protrusion protruding inward from the second cylindrical portion. The inner cylinder is rotatable with respect to the bushing between a noncontact position and a contact position.
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