Patent ID: 7306554

Claim:
A method of forming a stack of interfolded sheets of web material, the method comprising: rotating first and second interfolding rolls; issuing a stream of interfolded web material from the first and second interfolding rolls; forming a stack of interfolded web material; moving a first packer finger with respect to the first interfolding roll between a retracted position at least partially received within the first interfolding roll and an extended position at least partially inserted into the stream of interfolded web material; and moving a second packer finger with respect to the first interfolding roll between a retracted position at least partially received within the first interfolding roll and an extended position at least partially inserted into the stream of interfolded web material, the first packer finger and the second packer finger alternating to both contact each interfolded sheet in the stream of interfolded web material issued from the first interfolding roll.