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US 6,247,990 B1Granted
High performance rubberband launched toy autogiro with fold out wings
OwnerDavid Paul Moorhouseinventor
Life of this patent
Estimating the term…
Abstract
A new high performance rubberband launched toy autogiro is described. Using lightweight rigid materials, this device ascends at high velocity to over 100 feet, then unfolds its wings and begins a spinning slow-speed descent lasting 15 seconds or more. Minimal skill is needed to launch this toy, and depending on the force used to launch it, short or long times aloft can be achieved. Under thermal updraft conditions, descent time can extend to over a minute.
Claims1
A toy autogyro system, comprising:
- a thin rigid body having tapered first and second ends, first and second sides, and a mid section;
- a cut-away notch portion located in a forward portion of said mid-section;
- a pair of rigid wings having end portions hingeably attached to said first and second sides of said rigid body respectively, each of said rigid wings having a curved airfoil shaped cross section and tapering in a longitudinal direction along the length of said wing;
- thin film hinges adhesively connecting each of said end portions of said rigid wings to each of said first and second sides of said rigid body, such that said hinges form an L-shape when said wings extend perpendicular to said body;
- means for launching including a rubber band configured to connect with said notch portion so as to permit launching of said autogyro.
2 more elements
Dependencies are inferred from the claim text.