Variable volume chamber device
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United States of America Patent
Stats
-
Jul 28, 2020
Grant Date -
Nov 1, 2018
app pub date -
Apr 27, 2018
filing date -
Apr 28, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A variable volume chamber device is disclosed. The chambers may be defined by the space between four pivotally connected vanes contained within two side plates. The vanes may be connected so as to create a sealed interior chamber that may be used as a combustion chamber in an internal combustion engine, or as a pumping chamber in a pump or compressor. The four vane assembly may also form additional variable volume chambers between the vanes and a surrounding structure. The plurality of variable volume chambers may be interconnected to progressively act on a working fluid.
First Claim
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International Classification(s)
- 2018 Application Filing Year
- F02B Class
- 1108 Applications Filed
- 790 Patents Issued To-Date
- 71.30 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- F02B Class
- 43.20 % this patent is cited more than
- 5 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 | Jan 28, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 28, 2032 |
