Power plants – Motor having a buoyant working member – With means to vary buoyancy of working member
Patent
1998-10-29
1999-12-07
Nguyen, Hoang
Power plants
Motor having a buoyant working member
With means to vary buoyancy of working member
60495, F03C 100
Patent
active
059963441
ABSTRACT:
A hollow shaft (10) supporting a plurality of buoyancy legs (18) equally spaced about the periphery of the hollow shaft (10). One end of each buoyancy leg (18) is connected to the shaft (10) in a water tight manner while the opposite end of each buoyancy leg (18) supports a buoyancy chamber (22). A piston (38) is located within the buoyancy chamber (22) and is movable from a fully retracted state to a fully extended state by operation of a weight (44). The buoyancy chamber (22), when in a fully retracted state, being substantially full of water and providing a balanced state for the shaft (10). The piston (10), when in a fully extended state, providing a buoyant state of the buoyancy chamber (22) which impart rotational torque on the shaft (10). A mechanism is provided for automatically changing the position of the piston (38), from the fully retracted state to the fully extended state, or, from the fully extended state to the fully retracted state each time the buoyancy leg (18) is located in a substantially vertical orientation.
REFERENCES:
patent: 2513692 (1950-07-01), Tubbs
patent: 3934964 (1976-01-01), Diamond
patent: 4683720 (1987-08-01), De Shon
Frenette Eugene Roland
Frenette Henry Eugene
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