Package making – Methods – Gas filling and/or evacuating and closing
Reexamination Certificate
2008-03-18
2008-03-18
Truong, Thanh K. (Department: 3721)
Package making
Methods
Gas filling and/or evacuating and closing
C053S079000, C053S284700, C053S512000, C053S558000
Reexamination Certificate
active
10766754
ABSTRACT:
Method and apparatus which facilitate the tearing of packing materials and the like into desired lengths by pre-tearing them along the rows of perforations which are provided for that purpose. In the disclosed embodiments, a packing material having inflated chambers separated by rows of perforations is fed at a predetermined speed in a direction generally perpendicular to the rows and periodically pulled upon rather abruptly to produce a partial tearing of the material along the rows of perforations.
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Free-Flow Packaging International Inc.
Truong Thanh K.
Wright Edward S.
LandOfFree
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