Apparatus for forming slant, linear easy-to-tear portions on long plastic film
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 4, 2015
Grant Date -
May 23, 2013
app pub date -
Jun 18, 2012
filing date -
Nov 18, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for forming slant, linear easy-to-tear portions on a long plastic film, comprising a roll on which the long plastic film passes, pluralities of pattern rolls each partially having a slant, linear stamp on a rolling surface, a shaft to which pluralities of the pattern rolls are fixed, and a first mechanism for moving the shaft in a direction to the roll. Pressure rolls pushing the pattern rolls via rolls fixed to the shaft. A second moving mechanism for moving the pressure rolls in a direction to the pattern rolls, whereby with the pressure rolls pushing the pattern rolls by the second moving mechanism, the stamp of the pattern rolls are pressed onto the elastic film by the first moving mechanism, so that the slant, linear easy-to-tear portions with recesses formed by the pattern projections of the stamp are provided partially and periodically on the plastic film.
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