"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7374469 | Method of making a toy ball A method of making a toy ball having a toy figurine fixed therein includes the steps of: preparing an upper mold and a lower mold; preparing a toy figurine; inserting and fixing the toy figurine to an iron needle of the lower mold; injecting liquid polyurethane glue... | 05/20/2008 |
| 7258591 | Mobile roly-poly-type apparatus and method The present invention generally relates to apparatuses having some characteristic(s) of traditional “roly-poly” toys, which are traditional passive toys that, when struck, wobble about their typically-rounded base but stay upright due to bottom-heavy weighting. ... | 08/21/2007 |
| 7017686 | Hybrid human/electric powered vehicle A personal transporter that provides both for propulsion by a user, and, at the same time, for dynamic stabilization by means of a powered actuator. A pitch variable such as pitch or time rate of change of pitch is sensed and used to determine the torque provided to... | 03/28/2006 |
| 6902464 | Rolling toy A rolling toy includes a chassis, an electric power source attached to the chassis, a remote signal receiver, an electric motor attached to the chassis and receiving power from the power source in response to a signal received by the remote signal receiver, a pair o... | 06/07/2005 |
| 5281182 | Remote control robot toy with torso and leg twist and torso tilt A radio controlled toy in which movement of the toy upon changing the travelling direction is natural and human-like. An upper body is mounted on a seat plate such that the upper body is twisted with respect to the seat plate. Two legs are mounted on the ... | 01/25/1994 |
| 4921458 | Upright rolling toy assembly A self-righting upright rolling toy figure is provided which can be molded in half sections and assembled into a body forming the figure. Weights are mounted in the lowermost portion of the sides of the halves in precise location to form the necessary rig... | 05/01/1990 |
| 4897070 | Two-wheeled motorized toy A two-wheeled toy includes a central housing supported on a rotatable shaft between the wheels. The diameter of the wheels is larger than the housing, with a figure mounted on the housing extending above the wheels. The housing includes a miniature electr... | 01/30/1990 |
| 4698043 | Rolling egg toy A toy in the form of an egg. When rolled along the floor, the egg opens and a monster or other figure within the egg springs up is held in an upright position as the egg continues to roll along the floor.... | 10/06/1987 |
| 4666418 | Non-tippable toy The disclosure relates to a non-tippable toy which is capable of rocking about an axis and ultimately resting in a vertical position and which is also capable of motion in a lateral direction by utilizing an axle having a pair of wheel-like members affixe... | 05/19/1987 |
| 4476649 | Toy doll stroller and ferris wheel A toy doll stroller and ferris wheel has a pair of substantially A-shaped frame members with a U-shaped handle extending from and joining the frame members. Spaced side wheels mounted on a hollow axle are journaled for rotation between the apexes and carr... | 10/16/1984 |
| 4471565 | Articulated doll mounted on a ball An articulated doll mounted on a ball which contains an internal eccentric weight appears to dance and play with the ball. The torso of the doll is pivotally connected to the outside surface of the doll and legs hingedly connected to the torso are biased ... | 09/18/1984 |
| 4169334 | Rolling toys A rolling toy comprises a pair of wheels mounted on a common axle with inside faces of the wheels in spacedapart relation. A body is mounted for free rotation on the axle between the inside faces of the wheels and includes a head portion projecting upward... | 10/02/1979 |