Patent ID: 9533780
Date: 2017-01-03
CPC Classifications: B29C,B29K,B29L,B65B

Claim:
1. An apparatus for sealing an open end of a package, said apparatus comprising: a first longitudinally extending sealing jaw, bearing mounted on a first eccentric shaft, said first eccentric shaft rotating around a first rotational axis; a second longitudinally extending sealing jaw, bearing mounted on a second eccentric shaft, said second eccentric shaft rotating around a second rotational axis, said second sealing jaw being parallel with said first sealing jaw; at least one motor driving the rotation around said first and second rotational axes in opposite directions; the first and the second sealing jaws opposing each other, and being configured to oscillate between a sealing and an open position, by moving towards and away from each other; first and second transversally extending guiding bars, said first and second transversally extending guiding bars being bearing mounted between said first and second eccentric shafts; said first and second transversally extending guiding bars being arched upwardly; and said first and second transversally extending guiding bars cooperating with said first and second eccentric shafts via guiding pins running in guiding grooves, to permit play between the first and second eccentric shafts and the first and second sealing jaws in a transversal direction.