Wave energy converter with rotary hydraulic spring
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 25, 2015
Grant Date -
Oct 4, 2012
app pub date -
Mar 26, 2012
filing date -
Mar 28, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The generally up and down movement of a reaction mass is converted into rotary motion which is used to drive a rotary hydraulic spring comprised of a rotary hydraulic pump motor and an accumulator to produce a “spring” function. The invention is particularly applicable to wave energy converters (WECs) having a reaction mass which needs to be coupled to a spring to ensure its oscillation and to cause it to be centered about its center of travel. The linear up-down motion of a reaction mass may be converted via a linear-to-rotary translator to rotary motion to drive a rotary hydraulic pump/motor so as to provide spring action to the reaction mass and ensure its oscillation and proper positioning.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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OCEAN POWER TECHNOLOGIES INC | 1590 REED ROAD PENNINGTON NJ 08534 |
International Classification(s)

- 2012 Application Filing Year
- F03B Class
- 303 Applications Filed
- 216 Patents Issued To-Date
- 71.29 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Stewart, David B | Cranbury, US | 43 | 812 |
# of filed Patents : 43 Total Citations : 812 |
Cited Art Landscape
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Patent Citation Ranking
- 4 Citation Count
- F03B Class
- 6.49 % this patent is cited more than
- 10 Age
Forward Cite Landscape
- No Forward Cites to Display

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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 25, 2027 |
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