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Class Information
Number: 416/141
Name: Fluid reaction surfaces (i.e., impellers) > Articulated, resiliently mounted or self-shifting impeller or working member > Plural articulation
Description: Apparatus wherein the impeller or working member is supported for movement about plural pivots or for universal movement about one pivot.
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 |
| 7604460 |
Rotorcraft rotors having twistable blades |
Oct. 20, 2009 |
| 7393180 |
Wind turbine in parked position |
Jul. 1, 2008 |
| 7207778 |
Rotor as well as rotary-wing aircraft with a rotor |
Apr. 24, 2007 |
| 7100866 |
Control system for a flying vehicle |
Sep. 5, 2006 |
| 7040863 |
Variable pitch rotor blade for shrouded rotors, in particular helicopter rotors |
May. 9, 2006 |
| 6986642 |
Extreme mu rotor |
Jan. 17, 2006 |
| 6971853 |
Elastomeric bearing system |
Dec. 6, 2005 |
| 6848886 |
Snubber |
Feb. 1, 2005 |
| 6783327 |
Helicopter blade folding with blade droop |
Aug. 31, 2004 |
| 6375426 |
Protective edge members for composite flexures |
Apr. 23, 2002 |
| 6296444 |
Prop rotor hub |
Oct. 2, 2001 |
| 6280141 |
Swash-plates system for control of the pitch of rotor blades with rotating plate driver |
Aug. 28, 2001 |
| 6260676 |
Magnetic particle damper apparatus |
Jul. 17, 2001 |
| 6152696 |
Swash-plate device for controlling the pitch of rotor blades with non-rotating plate articulated on a central ball joint |
Nov. 28, 2000 |
| 6149386 |
Swash-plate device for controlling the pitch of rotor blades with non-rotating plate articulated by cotters on a central ball joint |
Nov. 21, 2000 |
| 6102659 |
Swash-plate device for controlling the pitch of rotor blades with cylindrical runners sliding on non-rotating pillars |
Aug. 15, 2000 |
| 6074168 |
Swash-plate device for controlling the pitch of the blades of a rotor with rotary guided parts on slides translated along the rotor axis |
Jun. 13, 2000 |
| 6050778 |
Semi-articulated rotor system |
Apr. 18, 2000 |
| 6039538 |
Multi-blade rotor for a helicopter |
Mar. 21, 2000 |
| 6033182 |
Swash-plate device for controlling the pitch of rotor blades with non rotating plate stop track and pin |
Mar. 7, 2000 |
| 5980206 |
Monolithic structure having improved flaw tolerance |
Nov. 9, 1999 |
| 5906476 |
Main rotor system for helicopters |
May. 25, 1999 |
| 5853145 |
Rotor head for rotary wing aircraft |
Dec. 29, 1998 |
| 5826822 |
System and method for providing cyclic and collective pitch control in a rotary wing aircraft |
Oct. 27, 1998 |
| 5788462 |
Hingeless rotor with intermediate pitch-control rings |
Aug. 4, 1998 |
| 5769606 |
De-icing connection installation for rotorcraft rotor |
Jun. 23, 1998 |
| 5716193 |
Installation for affording electrical continuity for rotorcraft rotor |
Feb. 10, 1998 |
| 5645400 |
Composite cuff structure for helicopter rotors |
Jul. 8, 1997 |
| 5511947 |
Cyclic pitch control having torsion spring system |
Apr. 30, 1996 |
| 5474424 |
Rotorcraft rotor head, which is rigid in drag and articulated in pitch and flapping |
Dec. 12, 1995 |
| 5466124 |
Device for generating an inversion-kinematic movement |
Nov. 14, 1995 |
| 5460487 |
Pitch adjustment assembly for bearingless main rotors |
Oct. 24, 1995 |
| 5364230 |
Rotor blade subassembly for a rotor assembly having ducted, coaxial counter-rotating rotors |
Nov. 15, 1994 |
| 5340279 |
Snubber assembly for a rotor assembly having ducted, coaxial counter-rotating rotors |
Aug. 23, 1994 |
| 5316442 |
Articulated rotor head for gyroplanes |
May. 31, 1994 |
| 5286167 |
Spar-to-hub joint for a flexbeam helicopter rotor |
Feb. 15, 1994 |
| 5242266 |
Gyrocraft articulated rotor head with intermediate sleeves between hub and blades |
Sep. 7, 1993 |
| 5228834 |
Hub structure for a rotary wing aircraft |
Jul. 20, 1993 |
| 5181829 |
Helicopter blade |
Jan. 26, 1993 |
| 5165853 |
Main helicopter rotor |
Nov. 24, 1992 |
| 5156527 |
Main helicopter rotor |
Oct. 20, 1992 |
| 5145321 |
Helicopter rotors with elastomeric bearings |
Sep. 8, 1992 |
| 5135357 |
Main helicopter rotor |
Aug. 4, 1992 |
| 5110260 |
Articulated helicopter rotor within an improved blade-to-hub connection |
May. 5, 1992 |
| 5110259 |
Pitch change bearing system |
May. 5, 1992 |
| 5096380 |
Composite flexbeam for a bearingless helicopter rotor |
Mar. 17, 1992 |
| 5092738 |
Flexbeam helicopter rotor with improved snubber-vibration damper between the torque tube and the flexible spar member |
Mar. 3, 1992 |
| 5074753 |
Rotor blade |
Dec. 24, 1991 |
| 5059094 |
Rotor redundant force retention system for VTOL and VSTOL aircraft |
Oct. 22, 1991 |
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