Abstract: A tabletop machine for automatically loading and sealing flexible containers such as plastic bags forming part of a chain of bags. The apparatus includes structure for supporting a supply of preformed, interconnected bags which are sequentially fed to a loading station. At the loading station, the bag is inflated by a blower having a shutter controlled outlet so that the flow of inflation air is reduced or terminated during feeding and which provides a blast or surge of air to "pop" the bag open when the bag arrives at a loading station. A residual air stream maintains inflation of the bag. After loading, a clamping mechanism is activated which applies a substantially increasing clamping force as a clamp bar nears a heat sealing unit so that should an obstruction or other obstacle be encountered as the clamping bar moves towards the bag, motion in the clamping bar can be resisted by the obstacle without damage to the obstacle or clamping mechanism.

Abstract: Apparatus and method for applying tubular labels to empty or filled product containers at a labeling station including a reciprocally moveable labeling assembly and a container advancing mechanism including a pair of confronting, rotatable star wheels. The star wheels include arms for engaging and holding a container to be labeled at a label applying position. The star wheels operate to stabilize the container until the labeling applying assembly engages the container. The star wheels then move out of the labeling station to provide clearance for the label applying assembly. A cam drive system is utilized to both reciprocate the label applying assembly and the star wheel mechanism. Sensors monitor torque in the star wheels and terminate operation should excessive torque be encountered. An additional star wheel and associated guide are used to advance a container from either an inline or side conveyor to a container presenting position.

Abstract: A tabletop machine for automatically loading and sealing flexible containers such as plastic bags forming part of a chain of bags. The apparatus includes structure for supporting a supply of preformed, interconnected bags which are sequentially fed to a loading station. At the loading station, the bag is inflated by a blower having a shutter controlled outlet so that the flow of inflation air is reduced or terminated during feeding and which provides a blast or surge of air to "pop" the bag open when the bag arrives at a loading station. A residual air stream maintains inflation of the bag. After loading, a clamping mechanism is activated which applies a substantially increasing clamping force as a clamp bar nears a heat sealing unit so that should an obstruction or other obstacle be encountered as the clamping bar moves towards the bag, motion in the clamping bar can be resisted by the obstacle without damage to the obstacle or clamping mechanism.