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US 6,306,004 B1Granted
Model airplane kit
OwnerRodney K. Farrarinventor
Life of this patent
Estimating the term…
Abstract
A model airplane, airplane kit, and method of making a model airplane. The kit of the present invention enables children and adults to easily make a well-flying model airplane using recycled plastic foam moldings such as polystyrene food trays well known as 10-S in the food packaging arts.
Claims2
A model airplane comprising:
- a wing with a swept back leading edge and an airfoil comprising a generally convex upper surface, said wing being symmetrical with respect to a centerline extending rearwardly from a nose;
- symmetrical upturned winglets formed at either end of the wing including an upper reflex area having concavity in a horizontal plane and in a vertical plane at a right angle to the wing centerline;
- a leading portion of each winglet extending rearwardly from the leading edge of the wing with upper, inner and lower, outer surfaces parallel to the wing centerline, the upper, inner surfaces having concavity in said vertical plane;
- and
- a trailing winglet portion curving inwardly and rearwardly from the leading winglet portion toward said centerline to define said reflex area.
2 more elements
Dependencies are inferred from the claim text.