Plastic article or earthenware shaping or treating: apparatus – Preform severing means – Rotating means comprising circumferentially extending...
Patent
1993-11-16
1995-12-26
Echols, P. W.
Plastic article or earthenware shaping or treating: apparatus
Preform severing means
Rotating means comprising circumferentially extending...
72198, 83109, 83176, 83669, 425306, 425307, 425814, B28B 1112
Patent
active
054782287
ABSTRACT:
Disclosed is a zipper for a reclosable thermoplastic bag having opposing rib and groove profiles wherein at least one of the opposing zipper profiles has an longitudinally extending part interlockable and substantially free of interdigitation with the opposing profile and wherein the part is structurally discontinuous along its length. When the rib and groove profiles are interlocked, an audible clicking sound and/or a vibratory or bumpy feel perceptible to the touch is imparted.
Further disclosed is a process and apparatus for making the zipper wherein a zipper profile is extruded and indentions are formed within and along it.
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Dais Brian C.
McCree John O.
Porchia Jose
Rydman Raymond R.
Vaughn Bertha R.
Dowbrands LP
Echols P. W.
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