GAS PERMEABILITY MEASUREMENT APPARATUS AND GAS PERMEABILITY MEASUREMENT METHOD
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
May 31, 2016
filing date -
Dec 2, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A gas permeability measurement apparatus and a gas permeability measurement method, including a first chamber filled with a measurement gas and maintained at a constant pressure, a second chamber connected in series to the first chamber, a third chamber connected in series to the second chamber, and a separating plate having a through-hole and separating the second chamber and the third chamber from each other. A conductance adjusting part is disposed between the second and third chambers to adjust conductance passing through the through-hole of the separating plate. A vacuum pump is connected to the third chamber to exhaust the third chamber. A differential pressure gauge measures differential pressure between the second and third chambers. A sample is disposed between the first and second chambers. The measurement gas is delivered to the second chamber after permeating the sample, and the conductance adjusting part sequentially provides at least two different conductances.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully