| 摘要 |
An underwater motive device utilizes a plastic rear housing which includes a battery storage space sealed with a tight fit to provide sealing, a pressured removal system is provided to pressurize the sealed battery chamber to enable the front wall to be removed. The motor is microprocessor controlled for safety by providing a slight delay before energizing the motor, and by providing some time in residence at a slow speed before switching to a higher speed. The result is a safe underwater motive device which will not accidentally become power actuated before the user is able to securely grasp and direct it, and which will not go to full speed except from a low speed to give the user a chance to stabilize himself in the water. Further, the control circuitry includes other features to provide both long battery life, good serviceable usage and battery preservation and motor preservation.
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