Patent ID: 11897645
Assignee: SEALED AIR CORPORATION (US)
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 21:
22. A method of opening a bag using the packaging machine of claim 1, the method comprising:
moving, by the indexing mechanism of the packaging machine, the web of preformed bags along a path of travel until one of the lines of weakness is downstream of the first finger and the first gripper;
moving the clamping arrangement of the packaging machine so that the beveled end of the first finger is disposed within the first engagement recess;
reverse indexing the web, by the indexing mechanism, so that the first finger and the first gripper are inserted into the top of one of the bags with the second ply sliding between the first finger and the base and the first ply being engaged by the beveled surface of the first gripper.