Seal bars having asymmetric surface features
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 31, 1991
Issued Date -
N/A
app pub date -
Mar 5, 1991
filing date -
Jan 2, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal for a pouch packaging machine as, for instance, a form, fill and seal packaging machine, includes first and second seal bars each having a sealing surface thereon. The seal bars are located on the machine in positions locating the sealing surfaces on the respective seal bars opposed to one another. In cross section the respective sealing surfaces on the seal bars each include a plurality of concave and convex surface features. The convex surface features have a radius of curvature that is less than the radius of curvature of the concave surface features thus rendering the sealing surfaces asymmetrical.
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