Abstract: A two-wheel drive hand and foot powered bicycle in accordance with the present invention includes a rear wheel that is driven by a foot pedal via a chain and derailleur mechanism. A front wheel is rotatably mounted to the bottom portions of first and second yokes. The first yoke is pivotally mounted to the front portion of the bicycle frame and the upper portion of the second yoke is rigidly mounted to the first yoke by a steering coupling member, wherein a steering torque applied to second yoke pivots the first yoke to turn the front wheel. A hand crank assembly is rotatably mounted to the steering coupling member and the upper portion of the second yoke. Power generated by operation of the hand crank assembly is transmitted by a chain to a sprocket assembly mounted to the front wheel. The operator may selectively power the front wheel, the rear wheel, or both wheels simultaneously.

Abstract: The self-contained apnea monitor of the invention detects an apnea event or shallow breathing in a patient such as an infant, and generates an audible and visual alarm in response thereto. The monitor includes an elastic fabric belt for snugly encircling the abdomen or chest of an infant and a detector unit for detecting expansion or contraction of the elastic fabric belt caused by respiration. To this end, the belt includes a helical spring extending along its length. An inextensible wire is provided within the spring connecting a remote end of the spring to the detector unit. Thus configured, respiration of the infant causes the wire to be withdrawn from the detector unit. Within the detector unit, the wire is mounted to a recoil spring assembly which provides a biasing force for recoiling the wire subsequent to respiration. A detecting arm or magnet is mounted to a barrel containing the recoil spring within an electrical circuit provided to detect motion of the detecting arm or magnet.