Patent ID: 7958924
Filing Date: 2011-06-14
Classification: B29C,B29K,B29L,B31B,B65B,Y10T

Abstract:
1. An apparatus for producing one or more weld seams on a foil bag, comprising: an ultrasonic source; and a press including an anvil having a weld side facing the ultrasonic source with a projection having a height and a width, the projection having at least one depression with a depth and a width, the press being constructed and arranged so that a portion of the foil bag is clamped between the projection and the ultrasonic source to provide a pressure on at least a part of one or more foil sheets of the foil bag proximate the ultrasonic source to create the one or more weld seams on the foil bag, wherein the anvil is constructed and arranged such that it is capable of moving toward the ultrasonic source to clamp the foil bag such that the one or more weld seam is produced with a single movement of the anvil.