Method of clamping overlaying sheets of material

Details Method of clamping overlaying sheets of material Method of clamping overlaying sheets of material

2011-08-16

2011-08-16

Gerrity, Stephen F (Department: 3721)

Package making

Methods

Forming or partial forming a receptacle and subsequent filling

C053S459000, C053S492000

Reexamination Certificate

active

07997050

ABSTRACT:
A clamp for sheets of material. The clamp includes a longitudinal main body with an external clamping side. The external clamping side comprises an external dragging surface for engaging a sheet of material. An internal clamping area inwardly extends from the external clamping side. The external dragging surface is at least partially movable into the internal clamping area so as to frictionally drag at least a portion of the sheet of material, engaged thereby, into the internal clamping area therewith. Clamping devices and bagging apparatus including such clamps are also disclosed. A method of clamping overlaying sheets of material is also disclosed.

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