Propeller blade retention device
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United States of America Patent
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Jun 17, 2014
Grant Date -
Sep 3, 2009
app pub date -
Feb 28, 2008
filing date -
Feb 28, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A propeller blade retention system and method of manufacture are disclosed. Because of the design, a truly integral hub is able to house a set of variable pitch blades. Each hub socket establishes a substantially cylindrical interface with its respective blade, making the blade slidably receivable for installation. Each blade is allowed axial rotation, and held inside the socket by a set of angular contact bearings. A snap ring locks the blade against coming back out of the socket. An O-ring is provided in the interface to create a fluid seal. The hub alone accomplishes all of the required load-bearing and weather-seal functions.
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