B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
154/29.13
B29C 65/02 (2006.01) B29C 65/06 (2006.01) B31F 5/00 (2006.01) B65B 13/32 (2006.01) B65H 21/00 (2006.01)
Patent
CA 1270432
ABSTRACT OF THE DISCLOSURE A method and apparatus is provided for securing together overlapping portions of a thermoplastic strap loop around an object. The overlapping strap portions are forced together in face-to-face contact under pressure. During or before the step of forcing the strap portions together, the energy in the strap portions is increased so as to melt at least a part of the thickness of each strap portion at the interface region. One embodiment of the method also includes forming a plurality of cavities that are distributed across the width of the molten parts adjacent the ends of the molten parts and that are surrounded by the molten parts. The step of increasing the energy is then terminated, and the strap portions at the interface region subsequently solidify, to encapsulate the cavities and form the welded joint. In another, and preferred, embodiment of the invention, the pressure on the strap portions is released while the parts of the strap portions are molten (whether or not cavities are present), and the strap portions at the interface region subsequently solidify in the absence of pressure.
537824
Cheung Nelson
Kobiella Robert J.
Cheung Nelson
Fetherstonhaugh & Co.
Kobiella Robert J.
Signode Corporation
LandOfFree
Method and apparatus for producing a welded joint in... 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 and apparatus for producing a welded joint in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing a welded joint in... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1299738