High pressure valve assembly
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United States of America Patent
Stats
-
Dec 13, 2016
Grant Date -
Sep 10, 2015
app pub date -
Mar 7, 2014
filing date -
Mar 7, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A valve assembly for high pressure applications includes a pre-charge chamber, at least one inlet for pressurized gas to enter the assembly, a system poppet and an outlet for releasing pressurized gas into a desired environment. Pressurized gas can flow through access channels into a single bellows, which expands to move a shaft connected to the system poppet to open the poppet. In another embodiment, the pre-charge chamber compresses a first bellows to expand a second bellows, and vice versa upon reciprocation. The two bellows are hydraulically connected and filled with incompressible fluid. Each bellows has an internal limiting valve to retain incompressible fluid therewithin, and to preclude the complete nesting of either of the bellows. The retained fluid within the bellows maintains an internal pressure to minimize differential pressure, thereby minimizing the risk of bellows failure.
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Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- G05D Class
- 14.77 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 13, 2028 |
