Steady ratio four-bar linkage for genuflective energy harvesting
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United States of America Patent
Stats
-
Sep 11, 2018
Grant Date -
Apr 20, 2017
app pub date -
Oct 14, 2015
filing date -
Oct 14, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A mechanism has four connected links to mimic the motion of a knee joint. A lower link is oriented towards the vertical. A leverage ratio between flexion of the knee and relative angular displacement of certain links in the mechanism remains fairly steady over much of the range of motion of the mechanism. The mechanism may be used to drive an energy harvesting gearbox with steadier and more efficient energy harvesting at deep flexion, as well as with quieter operation.
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International Classification(s)
- 2015 Application Filing Year
- H02K Class
- 2569 Applications Filed
- 1988 Patents Issued To-Date
- 77.39 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- H02K Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 11, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 11, 2030 |
