Abstract: An electric motor that is installed on a bicycle frame that includes a first side, a second side, and a bottom bracket shell. The electric motor contains a first portion, disposed on the first side of the frame of the bicycle frame proximate the bottom bracket, and a second portion, disposed on the second side of the bicycle frame proximate the bottom bracket shell. The first portion of the electric motor includes a stator and a rotor. The second portion of the electric motor includes a rechargeable battery. A bicycle crankset, with two crank arms, two pedals, and an axle, is rotatably coupled to the bottom bracket shell of the bicycle frame, where the axle of the crankset extends through the first and second portions of the electric motor. The rotor includes a sprocket that intermeshes with a bicycle chain to drive a rear wheel coupled to the bicycle frame.

Abstract: A pivotal gate system to be installed across the drain opening to a catch basin of a storm drain system and having a catch basin blocking gate that is adapted to rotate from a closed position extending completely across the drain opening at which to trap and prevent leaves, litter and other debris from entering the catch basin during dry periods and light rainfall to an open position removed from the drain opening at which to permit rainwater to enter the catch basin during periods of heavy rainfall. A water wheel is mounted for rotation within the catch basin. The water wheel is coupled to the catch basin blocking gate by way of a pulling cable. The water wheel rotates in response to impact forces caused by rainwater dropping downwardly on a plurality of scoops extending around the water wheel. A rotation of the water wheel generates a pulling force in the pulling cable to be applied to the catch basin blocking gate whereby to cause the blocking gate to move from the closed position to the open position.