Paint and surface coating air permeability demonstration and testing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 6, 2001
Grant Date -
N/A
app pub date -
Feb 16, 1999
filing date -
Feb 16, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for testing the vapor or gas permeability of a paint, sealant, textured coating or other surface coating. A test block is provided having a porous substrate coated with the test coating. The test block is mounted in a bubble testing apparatus between a pressure chamber and a liquid vessel. Water is provided in the liquid chamber and air is pumped into the pressure chamber. As the pressure of the pressure chamber rises above that of the liquid chamber, a pressure gradient is created. Bubbles can be visually observed in the water filling the liquid chamber if the test coating is vapor or gas permeable.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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