Rotorcraft rotors having twistable blades
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United States of America Patent
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Oct 20, 2009
Grant Date -
May 10, 2007
app pub date -
Oct 31, 2006
filing date -
Nov 4, 2005
priority date (Note) -
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Abstract
A rotorcraft rotor includes a hub , a first blade having a first twistable structure secured to the hub by a first bolt and a first ring or washer , a second blade having a second twistable structure secured to the hub by a second bolt and a second ring or washer. The rotor includes a stop structure for preventing each ring or washer from turning relative to the hub or relative to the corresponding twistable structure.
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