| 摘要 |
An automatically-operated fish feeder comprises a food storage hopper (10) having an outlet (12) controlled by an electrical motor- operated dispensing device (14), the motor being powered by a battery (18) under the control of a timer (20). An array of photocells (16) is mounted on the lid of the hopper (10) to provide a trickle charging current for the battery (18) and also to provide an indication of the ambient light conditions so as to prevent operation of the motor during the hours of darkness. <IMAGE> |
