Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 7673893 | Spring-based mechanism for saving labor of a bicycle rider A spring-based mechanism for saving labor of a bicycle rider is disclosed and in one embodiment includes an axle operatively connected to a chain wheel and a first set of bearings via a gear assembly; a housing for mounting a shaft therein wherein the first set of b... | 03/09/2010 |
| 7321218 | Bicycle derailer generator A derailler with a set of gears powered by bicycle chain to drive an AC generator. A bridge rectifier to convert AC to DC to charge the battery and to energize the head light and the tail light. A set of switches to control the head light, tail light, and battery. | 01/22/2008 |
| 7150332 | Speed controller for a vehicle A kinematic speed controller for a vehicle requires the constant deliberate movement of a rotary apparatus which is physically independent from the vehicle drive system. It does not require substantial operator muscle power since there is no direct mechanical connec... | 12/19/2006 |
| 7021639 | Bicycle of type driven by operation of handle Disclosed herein is a bicycle of the type driven by operation of a handle. According to the present invention, a shaft rod of the bicycle is installed with a hinge so as to enable the handle to rotate forward or backward. The handle is bent by a constant angle on th... | 04/04/2006 |
| 7011592 | Sprocket assembly for a bicycle A sprocket comprises a sprocket portion having a plurality of radially extending teeth, a first coupling portion extending from a first side of the sprocket portion and having a first coupling structure disposed on an inner peripheral surface thereof, and a second c... | 03/14/2006 |
| 6869384 | Exercising bicycle An exercising bicycle is proposed, having a rear hub thereof being mounted with a spring seat, a coupling member, a spiral spring, a turning mechanism and a braking system. The spring seat is formed with a shaft for being sleeved with the coupling member. The spiral... | 03/22/2005 |
| 6557877 | Regenerative braking and driving apparatus A coil spring is mounted in the hub of a wheel of a vehicle. One end of the coil spring is connected to a ratchet and the ratchet is engaged by a pawl which is connected to the hub. A brake is also mounted in the hub. The drum of the brake is connected to... | 05/06/2003 |
| 6502842 | Bicycle power generating arrangement A power generating device that includes a dynamo, a rack mounted on the frame of a bicycle to hold the dynamo, and a wheel attached to the rack. When the device is engaged, the wheel contacts the ground and rotates to drive the dynamo while the bicycle is... | 01/07/2003 |
| 6371501 | Tread wheel frame system A Tread Wheel Frame System drives a human-powered cycle by a tread wheel driving a tread of a drive wheel of a cycle rather than driving a drive wheel hub, as conventional cycles do. Most of the driving mechanism, including the tread wheel, a speed ratio ... | 04/16/2002 |
| 6053830 | Power-spring assist to pedals of bicycle A spring-assist drive for a pedal-operated rider-propelled vehicle such as a bicycle which makes use of a wind-up coil spring mounted within the frame of the bicycle as auxiliary power. The spring is selectively wound by the rider operating the pedals to ... | 04/25/2000 |
| 5388847 | Rider propelled vehicle and drive assembly therefor A rider propelled vehicle having a drive assembly including pedals and at least one drive wheel mounted on the chassis and operatively connected to the pedals for powering the vehicle. Left and right steering shafts are mounted forwardly of the seat gener... | 02/14/1995 |
| 5188003 | Power assist device for a drive mechanism A power assist device for use with a crank-operated drive mechanism including a pair of crank arms extending from opposite ends of a shaft mounted for rotation on a frame. The crank arms rotate the shaft about an axis with the crank arms revolving about t... | 02/23/1993 |
| 5157988 | Elastic crank for bicycles A device for absorbing energy from a bicyclist's foot on the downward pedal stroke and releasing it shortly afterward into the drive chain to propel the bicycle is disclosed. The energy is stored in a coil spring which is connected between the sprocket wh... | 10/27/1992 |
| 5035678 | Energy-storing bicycle sprocket drive system The present invention is an energy-storing bicycle sprocket drive system which includes a crank which rotates a shaft about the shaft's longitudinal axis. The crank moves through a point of minimum applied leverage and a point of maximum applied leverage ... | 07/30/1991 |
| 4846488 | Spring drive and spring drive scooter A spring drive and a spring drive scooter for use by an operator. The spring drive and spring drive scooter have a frame, a resilient member connected to the frame, a pedal, and a movement. The pedal is supported by the resilient member. The pedal is disp... | 07/11/1989 |
| 4744577 | Regenerative braking system for bicycles A regenerative braking system provides braking by transmitting the spring force of a deforming elastic medium as a torque tending to oppose the forward rotation of a wheel being braked. A brake pad assembly, mounted concentrically with the hub of a ground... | 05/17/1988 |
| 4416464 | Spring assist drive for cycle A spring assist drive for pedal operated vehicles such as bicycles and tricycles makes use of a wind-up spring in the train of power from the pedal operated power sprocket to the drive sprocket for the rear drive wheel. The wind-up spring is a coil spring... | 11/22/1983 |
| 4305599 | Transmission for a wheeled vehicle A transmission apparatus for a wheeled vehicle is disclosed. The wheeled vehicle includes a rotatable driving member, to which power is delivered by rotating the driving member in a first direction, and a ground engaging wheel. The transmission apparatus ... | 12/15/1981 |
| 4108459 | Spring powered bicycle A mechanism for a rider propelled vehicle having a frame and a ground engaging wheel mounted on it comprising two lever arms on opposite sides of frame, extending backwardly, with foot pedals on their extremities and mounted each on a cylindrical oscillat... | 08/22/1978 |
| 3941075 | Pedal powered amphibian tricycle with blower-turbine coupling means A three wheeled amphibian vehicle operated by pedal power and including an air blower coupled to a disk turbine. The turbine is a flat circular rotatable structure having blade cavities on both upper and lower faces. Twin nozzles, connected to the blower,... | 03/02/1976 |
