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Class Information
Number: 416/107
Name: Fluid reaction surfaces (i.e., impellers) > Sustained ancillary movement of rotary working member (e.g., cyclic feathering, etc.) > Lead-lag type rotor blade movement > With movement restraining means (i.e., damping) > Resilient bias or limit stop
Description: Apparatus wherein the movement restraining means is of the resilient biasing or limit stop type.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607892 |
Rotorcraft rotor with blades hinged in flap and in lag |
Oct. 27, 2009 |
| 7368158 |
Elastomeric member provided with monitoring means |
May. 6, 2008 |
| 7360994 |
Method of controlling vibration damping in a helicopter, and apparatus implementing the method |
Apr. 22, 2008 |
| 6966755 |
Compressor airfoils with movable tips |
Nov. 22, 2005 |
| 6926500 |
Fluid inertia drag damper for rotary wing aircraft rotor |
Aug. 9, 2005 |
| 6764280 |
Multi-bladed tail rotor hub design for coriolis relief |
Jul. 20, 2004 |
| 6695583 |
Snubber-vibration damper system for a bearingless main rotor |
Feb. 24, 2004 |
| 6260676 |
Magnetic particle damper apparatus |
Jul. 17, 2001 |
| 6200097 |
Hub for rotor head of rotary-wing aircraft and rotor head with such hub |
Mar. 13, 2001 |
| 6196800 |
Rotor blade for a bearingless rotor of a helicopter |
Mar. 6, 2001 |
| 6082968 |
Centrifugally activated variable damper assembly |
Jul. 4, 2000 |
| 6050778 |
Semi-articulated rotor system |
Apr. 18, 2000 |
| 5951251 |
Device for locking the blades of a rotor, at least in terms of pitch |
Sep. 14, 1999 |
| 5951252 |
Helicopter flap lock assembly |
Sep. 14, 1999 |
| 5913659 |
Apparatus and method for adjusting rotor blade tracking |
Jun. 22, 1999 |
| 5877566 |
Submersible magnetic motor having improved rotary blades |
Mar. 2, 1999 |
| 5636970 |
Device for damping the drag of the blades of a rotor |
Jun. 10, 1997 |
| 5372478 |
Helicopter rotor damper |
Dec. 13, 1994 |
| 5267833 |
Gyrocraft rotor hub body |
Dec. 7, 1993 |
| 5141398 |
Rotary, viscoelastic drag elastic-return and damping device for a rotorcraft rotor blade |
Aug. 25, 1992 |
| 5116209 |
Device of retractable stops for rotor blades of giroplanes, and rotor head including such a device |
May. 26, 1992 |
| 5007799 |
Flapping restrainer device for rotorcraft rotor blades, and rotor head comprising said device |
Apr. 16, 1991 |
| 4915585 |
Rotary-wing aircraft rotor head having resilient-return interblade ties with built-in damping |
Apr. 10, 1990 |
| 4652211 |
Helicopter rotor |
Mar. 24, 1987 |
| 4588356 |
Helicopter rotor |
May. 13, 1986 |
| 4549850 |
Helicopter rotors |
Oct. 29, 1985 |
| 4502652 |
Process and apparatus for suppressing external load carrying wing flutter for aircraft |
Mar. 5, 1985 |
| 4424451 |
Water turbine |
Jan. 3, 1984 |
| 4342540 |
Articulated rotor for helicopters |
Aug. 3, 1982 |
| 4297079 |
Variable pitch marine propeller |
Oct. 27, 1981 |
| 4178130 |
Helicopter rotor having lead-lag damper operable with pitch and flap decoupling |
Dec. 11, 1979 |
| 4105365 |
Helicopter rotor lead-lag damper |
Aug. 8, 1978 |
| 4086024 |
Apparatus for connecting a rotor blade to a rotor hub |
Apr. 25, 1978 |
| 4028000 |
Blade connection for helicopter rotor blades |
Jun. 7, 1977 |
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