Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7255305 | Flying device utilizing natural principles An efficient flying device having flapping wings, an ornithopter, which uses many of the principles seen in bird flight, is presented herein. The wings are highly flexible, translationally stable and oscillate as a natural pendulum. Described as a springboard, the w... | 08/14/2007 |
| 7195200 | Unmanned helicopter, takeoff method of unmanned helicopter, and landing method of unmanned helicopter An unmanned helicopter includes an altitude control device for giving a command of a collective pitch blade angle based on an altitude change rate command, etc., and performing altitude control of an airframe and takeoff device, upon reception of a takeoff start com... | 03/27/2007 |
| 7048232 | Plottner rotor kite A Rotor Kite that is flown by means of two control lines and which has two counter rotating 50 inch rotors and which can be flown in winds of 9 miles per hour and greater. This Rotor Kite can take off, fly in the air at various heights and then be landed by the oper... | 05/23/2006 |
| 6280284 | Toy submarine with counter rotating propellers A toy submarine consisting of three components. Two of the components are an injection molded thermoplastic and the other is an ordinary rubber band. The plastic is slightly positively buoyant in typical tap water. The first molded component is the tailpi... | 08/28/2001 |
| 5830029 | Toy bow-in-arrow bubble shooter system A toy bow-n-arrow bubble shooter system including a bow. The bow has a frame with a cylindrical member centrally interconnected thereto and an elastomeric string. The cylindrical member has a channel therein and a plunger member positioned within the chan... | 11/03/1998 |
| 5749761 | Model glider having twin propellers The present invention relates to a model glider having twin propellers, which includes a central frame which forms a body of the glider, a vertical tail and a pair of horizontal tails respectively provided on the rear part of the body, a pair of main wing... | 05/12/1998 |
| 5628620 | Main rotor system for helicopters A main rotor is provided for use in a rotary winged model aircraft. The main rotor includes a rotor hub assembly rotatable about a vertical axis and at least two main rotor blades. Each of the main rotor blades extends in a radial direction from the rotor... | 05/13/1997 |
| 5492494 | Toy aircraft with vertical flight dynamics A hobby aircraft arranged for vertical flight aerodynamics. A substantially-planar body is symmetrical about a central axis. An upper blade is fixed to the bottom of the body. An elastic band is aligned with the central axis for powering a lower blade tha... | 02/20/1996 |
| 5259802 | Component frisbee A multi-disc flying device is disclosed in which outer and middle discs rotate in opposite directions by a force generated by the unwinding of a torsion spring. Downwardly extending deflecting plates on each disc generate an upward force during rotation t... | 11/09/1993 |
| 5252100 | Variable rotor-blade-attack angle helicopter toy In a helicopter toy, a plurality of rotor blades are mounted to a flying body for rotation about a rotational axis and for angular movement about their respective pivotal axes extending perpendicularly to the rotational axis so that the rotor blades have ... | 10/12/1993 |
| 5173069 | Autorotative flyer An autorotative flyer comprises a circular root portion integral with a wing portion; the root being generally circular and providing a counterweight of from 55-85%, preferably 70-72%, of the total weight of the flyer and locating the center of gravity of... | 12/22/1992 |
| 5080624 | Multi disc flying toy featuring lift producing fins A flying disc toy has at least two circular spinners rotatably mounted upon a centered axle. Each spinner has a number of fins which cause the spinner to rotate when thrown into the air. The spinners rotate in counter direction, thereby causing the toy to... | 01/14/1992 |
| 4904219 | Hand flyer This hand flyer is so designed as to be of a specific one piece construction that includes certain aerodynamic characteristics that enable it to be thrown upward vertical, whereupon its descent will perform a spiral motion. Primarily, it consists of a bod... | 02/27/1990 |
| 4084345 | Toy helicopter A toy helicopter including a body, a frame mounted to rotate with respect to said body, a spindle extending through an opening provided in the frame and mounted to rotate with respect to the frame, an energy storing mechanism operatively connecting the sp... | 04/18/1978 |
