Hedstrom Co.

Mark D Moss

A sprocket-actuated bike brake includes a brake shoe swingable against the rear tire by an actuator engaged by the sprocket teeth when the pedal sprocket is rotated in reverse. Using a small number of parts, the brake couples a maximum amount of force from the sprocket to the brake shoe and imparts a drag on the tire which is proportional to the force on the pedals so that the bike has a stop length versus pedal force characteristic which is substantially linear.

Sprocket-actuated brake

A play seat includes telescoping scissor frames for supporting a seat above a base ring composed of two opposing arcuate ring sections whose opposite ends are connected together by stiff coil springs. The lower ends of the scissor frames are pivotally connected to the ring sections so that any weight in the seat tends to spread apart the ring sections thereby tensioning the springs whereby the seat is resiliently supported above the ground. Each spring is protectively enclosed within a plastic sleeve.

Growing community of inventors

Hollidaysburg, PA, United States of America

Mark D Moss