B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 51/30 (2006.01) B29C 65/22 (2006.01) B29C 65/74 (2006.01) B65B 9/02 (2006.01) B65B 61/10 (2006.01)
Patent
CA 2068910
ABSTRACT OF THE DISCLOSURE An arrangement for enveloping an object located between two heat weldable webs of enveloping material includes two coacting welding jaws for joining the webs together in their transversal direction on mutually opposite sides of the object. The welding jaws extend in the transverse direction of the webs, across the whole width thereof. One of the jaws is a wire-carrying jaw which supports a freely extending heating wire, and the other jaw is forked and has two legs. The jaws are moveable between a starting position on opposite sides of the webs, and a web welding position in which the webs are held together with the free ends of the fork legs in abutment with one side of the webs and with the heating wire located at the mouth region of the fork gap and in abutment with the other side of the webs. The wire functions to weld said material webs together and to melt- off the webs within the weld region. In the welding position, at least one of the jaws is biassed by a spring means towards a further position in which the wire is located within the forked jaw, between the legs thereof at a distance from the mouth of the fork gap.
Bjorkman Claes
Lundblad Leif
Pettersson Tord
G. Ronald Bell & Associates
Nybo Seal System Ab
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