Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7387277 | Aircraft wing composed of composite and metal panels Aircraft wing assemblies having both composite and metal panels are disclosed. In one embodiment, a wing assembly includes a support structure, an upper panel assembly formed from a metal material and coupled to the support structure, and a lower panel assembly form... | 06/17/2008 |
| 7338694 | Method for an integral composite forward flange in a composite The present invention is directed toward a laminate composite structure and a method for fabricating a laminate composite structure, wherein the laminate composite structure comprises a solid laminate and a composite sandwich structure. The solid laminate includes a... | 03/04/2008 |
| 7316539 | Vane assembly with metal trailing edge segment Embodiments of the invention relate to a vane assembly formed by a forward airfoil segment and an aft airfoil segment. The aft segment is made of metal and can define the trailing edge of the vane assembly. The forward segment can be made of ceramic, CMC or metal. T... | 01/08/2008 |
| 7198691 | Fastenerless internal support for hollow structures A reinforced structural member having a tubular member and a support structure. The tubular member has a sidewall that defines a hollow interior portion. The support structure is formed from a composite material and bonded to the sidewall in at least two predetermin... | 04/03/2007 |
| 7121506 | Remotely controlled model airplane having deflectable centrally biased control surface A remotely controlled model airplane includes a receiver responsive to signals from a transmitter to control the direction of flight of the model airplane. The receiver, powered by a battery, demodulates the signal transmitted by the transmitter to selectively energ... | 10/17/2006 |
| 7112044 | Blades Percussive impacts due to bird strikes upon the hollow fan blades 20 are a well known problem. These percussive impacts not only deform previous fan blades but also reduce their stiffness. In accordance with the present invention, hollow fan blades 20 ... | 09/26/2006 |
| 4671471 | Foam reinforced aluminum wing structure An aircraft or sailboat structure and the method of manufacturing it in which the wing is formed of an elongated leading edge core of lightweight formable cellular material having an aerodynamically configured semi-circular forward surface and a substanti... | 06/09/1987 |
| 4538780 | Ultralight composite wing structure A composite wing structure for an aircraft, missile and the like. The structure characterized by the use of ultralight materials and having a potential of being stealthy.... | 09/03/1985 |
| 4485991 | Rollable airfoil A rollable airfoil, and aircraft for utilizing the airfoil. The airfoil is made of an upper skin having a cambered configuration and formed of a material having sufficient elasticity that the camber can be broken and the skin rolled into a coil. The lower... | 12/04/1984 |
| 4432515 | Liquid fuel tank for an airplane and method and apparatus for manufacturing the same A liquid fuel tank for an airplane of the type which constitutes a structural part of the airplane wing, the outer surface of which defines the aerodynamic outer surface of at least a portion of the wing, includes walls having a bonded multilayer sandwich... | 02/21/1984 |
| 4079903 | Lightweight contoured load carrying structure Contoured load carrying filament reinforced matrix structure which may be in the form of an airfoil or hydrofoil and comprising a plurality of elongated coextensive tubes disposed in side-by-side relationship to form a tube assembly and individually of su... | 03/21/1978 |
| 3937425 | Airplane wing and method of forming same A method of forming an airplane wing and a resulting article of manufacture where a wing structural member is provided which is composed of a plastic foam layer sandwiched between opposing paper sheets. A substantial portion of one of the paper sheets is ... | 02/10/1976 |
