Vapor-pressure driven pump
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United States of America Patent
Stats
-
Aug 8, 2023
Grant Date -
Apr 9, 2020
app pub date -
Oct 4, 2019
filing date -
Oct 4, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vapor-pressure driven micro pump system comprising an enclosure of a supporting structure; a first chamber having a first volatile material as a propellant with a plurality of exit nozzles; a second chamber have a second volatile material inside of a collapsible diaphragm which separates the first and the second chambers within said enclosure, wherein a vacuum at the plurality of exit nozzles causes vaporization of said propellant, which is compensated and displaced by vapor of said second volatile material at a substantially constant pressure by moving of said collapsible diaphragm. The vapor-pressure driven pump system is useful for various situations, especially in a gravity-free environment in space exploration.
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- 0 Citation Count
- F04B Class
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Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 8, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 8, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 8, 2035 |
