| Patent Number |
Title Of Patent |
Date Issued |
| 7563219 |
Dual drum configuration for transverse direction application of zippers |
July 21, 2009 |
| A drum configuration uses first and second rotary drums to apply alternate zipper segments in a transverse direction to a sheet of moving web or film. This allows the web to maintain a constant speed without the intermittent pausing while the zipper segments are sealed to the web. |
| 7311647 |
Methods for sensing features on moving fastener tape during automated production |
December 25, 2007 |
| A method of manufacture comprises the following steps: (a) advancing a fastener tape made of flexible thermoplastic material along a process pathway during an indexing portion of a work cycle, the fastener tape not advancing during a dwell time of the work cycle; (b) during each dwell |
| 7175582 |
Method and apparatus for registering fastener tape in packaging machine |
February 13, 2007 |
| Methods and apparatus for controlling the registration of a first elongated continuous structure (e.g., plastic fastener tape) with attachments (e.g., sliders) or formed features (e.g., slider end stop structures), as it is fed to a sealing station, where it is joined to a second elo |
| 7025841 |
Ultrasonic apparatus with non-rotating horn and rotating anvil for welding plastic parts |
April 11, 2006 |
| A method and an apparatus for ultrasonically welding plastic parts together. The ultrasonic welding apparatus includes: an air cylinder having a piston rod; an ultrasonic horn substantially rigidly coupled to an end of the piston rod and having a distal end; a rotary anvil having an |
