Patent ID: 7270074

Claim:
A scuba diving propulsion system for a gas tank ( 11 ) worn by a diver, the propulsion system comprising (a) a bracket ( 17 ); (b) apparatus ( 25 ) to secure removably said bracket to the tank ( 11 ); (c) a battery module ( 15 ) removably mounted on and contacting said bracket; (d) a motive power module ( 16 ) removably mounted on and contacting said bracket separately from said battery module, and including an electric motor, a transmission operatively associated with said motor to increase the torque produced by said motor, a propeller shaft operatively associated with said transmission, and a propeller mounted on said propeller shaft; and, (e) an electrical connector ( 24 ) on said bracket ( 17 ) to interconnect electrically said battery module ( 15 ) and said power module ( 16 ); said bracket including (f) a first opening shaped and dimensioned to slidably receive said battery module when said battery module is mounted on said bracket; and, (g) a second opening spaced apart from said first opening and shaped and dimensioned to slidably receive said power module when said battery module is mounted on said bracket.