Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 4324413 | Unicycle with water balance This invention consists of a unicycle having a rubber tire equipped double wheel, located within a light adjustable body which serves as a seat and a handle for holding onto. It is further equipped with a water container located between the double wheel, ... | 04/13/1982 |
| 4241931 | Automobile tire riding vehicle A discarded automobile tire is utilized as a part of a mobile toy or exercising device. A tire riding vehicle is provided with a base support extending parallel to the space between the two tire beads of the automobile tire. Two spaced axles extend normal... | 12/30/1980 |
| 4176851 | Child's bumper bike The child's bumper cycle is similar to a conventional child's tricycle except that a 360° bumper ring lying in a horizontal plane completely surrounds the single main wheel of the cycle to replace the normal smaller rear wheels. The ring itself has four ... | 12/04/1979 |
| 4126326 | Training roll-on ball with balancing supports This invention is a device to aid persons of varying ages to balance and move freely on a ball. The ball is set in a framework in such a manner that it may roll freely. The framework is mounted on casters so that said framework may move freely with the ba... | 11/21/1978 |
| 4106786 | Recreational vehicle for use on sloping terrains Recreational vehicle comprises a riding platform having provided therein a centrally disposed aperture, with a single wheel mounted in the aperture. A first pair of skid means is spaced on either side of the plane of the wheel and projects forwardly of th... | 08/15/1978 |
| 4073504 | Amusement device An amusement device having means for treading thereon which causes a rolling action. The device includes a pair of straps for the stabilization of the user.... | 02/14/1978 |
| 4062558 | Unicycle This disclosure pertains to a one wheeled vehicle rotatably affixed to a yoke. One arm of the yoke is provided with a stationary foot rest. The other arm of the yoke contains a rack which when reciprocated operates a gear train causing the wheel to rotate... | 12/13/1977 |
