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| Number | Title | Issue Date |
| 7331546 | Bendable wing for micro air vehicle A micro air vehicle having a bendable wing enabling the micro air vehicle to fly. The bendable wing may be bent downwards so that the wingspan may be reduced for storing the micro air vehicle. The bendable wing may be formed from one or more layers of material, and ... | 02/19/2008 |
| 7182293 | Airfoil box and associated method An airfoil box and associated method are provided. The airfoil box includes two or more half-shell structures. Each half-shell structure is an integral or unitary member that includes at least a portion of the outer skin of the airfoil as well as stiffener members a... | 02/27/2007 |
| 4871132 | Aerodynamic structural pipe for hang gliders The invention provides an aerodynamically profiled structural pipe (1) comprising a supporting pipe (2) and a rear tapered part (3) of soft material. The tapered part (3) has on both sides beads (15) forced into and captively held by rearwardly open chamb... | 10/03/1989 |
| 4815939 | Twisted hollow airfoil with non-twisted internal support ribs A transversely twisted hollow airfoil member is provided by diffusion bonding together airfoil components each having a skin or shell in the form of a partial airfoil twisted transversely along its length and one or more internal support ribs having bondi... | 03/28/1989 |
| 4422229 | Method of making an airfoil member for a gas turbine engine An aerofoil member such as a blade or vane for a gas turbine engine comprises a hollow aerofoil with a plug of porous material filling a region of the hollow interior. The porous material forms at least part of the external surface of the aerofoil so that... | 12/27/1983 |
| 4204358 | Aluminum model airplane kit A motorized model vehicle is formed of sheets of aluminum attached by heat soluble glue. The model has no internal supporting structure, but relies upon the resilient prestress of the metal sheet to maintain a desired shape. Methods of folding, forming, c... | 05/27/1980 |
| 3962506 | Multi-chambered cellular structure and method for manufacture A fiber-reinforced plastic article of manufacture having a multi-chambered, cellular structure with an outer shell having a fluid foil shape with a leading edge having a smooth radius of curvature and a trailing edge [noncircular]cross section over a subs... | 06/08/1976 |
