Marine propulsion device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 5, 2002
Grant Date -
N/A
app pub date -
Jun 22, 2000
filing date -
Jun 22, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The propulsion device (10) includes a housing (12) having an incoming end cap (14) and an outflowing end cap (16). A tubular bladder (20) within the housing is interconnected to each end cap, thereby varying the volume of both a chamber (22) within the bladder and a chamber (24) between the bladder and the housing during attractive or repulsive movement between end caps (14,16). Check valves control the flowthrough the end caps. The propulsion device is highly efficient and is able to move the vessel through water with little or no cavitation.
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