Apparatus and method for joining polymeric materials using an electro-magnet
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 4, 2003
app pub date -
Jun 4, 2002
filing date -
Jun 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus and method for joining layers of a web of film in a sealing machine by using magnetic force generated by one or more electro-magnets. The apparatus includes a first member and a second member that are opposite to each other. The first member includes at least one electro-magnet. The second member includes a portion thereof that is attracted to the first member. A heater and a pressure applicator are coupled to one of the first or second members. The electro-magnet is energized and moves the second member towards the first member by attracting the second member. The first member and the second member urge together while the pressure applicator forces the film layers against the heating element to heat the layers. The pressure of the first and second members joins the softened layers together and thereby seals a portion of the layers of a web of film between the first member and second members.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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