Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Convertible aerial vehicle with contra-rotating wing/rotors and twin tilting wing and propeller units

Patent image
NRL

A micro aerial vehicle can be converted during flight between a fixed wing flight mode and a rotary wing flight mode. The canard design micro aerial vehicle includes a fuselage, two tiltable propellers and airfoils arranged at a forward portion of fuselage, a pair of coaxial drive shafts positioned aft of the tiltable propeller and airfoil arranged for contra-rotation, a stop rotor mechanism, and a pair of wing panels, each of the wing panels attached to one of the coaxial drive shafts. The wing panels act as contra-rotating rotor blades in the rotary wing flight mode, and act as fixed wing panels in the fixed wing mode.

Inventors: 
Cylinder, David A.; Kellogg, James C.
Patent Number: 
Technical domain: 
Handling and Transportation
FIle Date: 
2007-03-27
Grant Date: 
2010-02-23
Grant time: 
1,064 days
Grant time percentile rank: 
19
Claim count percentile rank: 
6
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US NAVY