Heat sealing apparatus for packacing machinery
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Feb 12, 2004
app pub date -
Jun 12, 2003
filing date -
Aug 23, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Heat sealing apparatus for packaging machinery and particularly suitable for form, fill and seal packaging machinery. The heat sealing apparatus is for forming a continuous lengthways extending seal (29) on a web (18) of packaging material to be fed past it. The apparatus comprises a nozzle (50) connectable to a hot gas producer (62) which produces a flow of hot gas having a substantially constant temperature. The nozzle is mounted on a carrier (52) which is connected with a servo motor drive (56). The servo motor is controlled by a control system (48) so that in use it moves the nozzle relative to the web in accordance with variations in web feed velocity such that the flow of hot gas from the nozzle can apply a substantially constant heat to the web to form the seal (29). The apparatus allows a hot air producer which outputs hot air at a constant temperature and volume flow rate to apply a constant heat along the seal area despite variations in the web feed speed.
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