B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 5/02 (2006.01) A44B 19/16 (2006.01) A44B 19/36 (2006.01) B29C 65/74 (2006.01) B29C 67/00 (2006.01) B31B 19/90 (2006.01) B65D 33/25 (2006.01)
Patent
CA 2062573
A method of making an end stop for a slider of a fastener structure for a thermoplastic bag. The fastener structure comprises a pair of flexible plastic strips adapted to be connected to the walls of the bag and having reclosable interlocking male and female profile elements on the respective strips and a slider straddling the strips for opening and closing them. The method comprises clamping together a pair of the flexible plastic strips between clamps at a seal area in the region intended to form an end of the strips, the clamps having pockets therein adjacent the profile elements at the seal area. The profile elements are several and heated at the seal area with a heated knife to transform the severed ends of the profile elements into molten material; the molten material is pressed into the pockets in the clamps with the heated knife thereby increasing the thickness of an area of the strips adjacent the seal area to provide a protruding end stop for preventing movement of the slider past the ends of the
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
Tenneco Packaging Inc.
LandOfFree
Method of making protruding end stops for plastic reclosable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making protruding end stops for plastic reclosable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making protruding end stops for plastic reclosable... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1784613