Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate
2009-06-22
2010-12-14
Wyrozebski, Kat (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
C264S151000, C264S171290, C425S322000
Reexamination Certificate
active
07850888
ABSTRACT:
Extruded, striped drinking straws are formed by coextruding at least two polymers of different color through a common extruder to form an elongated tube. An oscillator consisting of a pair of rolls supported for rotation about their central axes, extending normally to the extension of the tube, bear against opposed sides of the tube and are reciprocated in opposing directions so as to rotate the tube by a gear and spline mechanism. A straight puller draws the tube out of the extruder and through the twisting oscillator and a cutter forms the tube into straw lengths at the output of the puller.
REFERENCES:
patent: 3234312 (1966-02-01), Friedrich
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Grun Robert J
Wyrozebski Kat
LandOfFree
Striped drinking straw and method of making the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Striped drinking straw and method of making the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Striped drinking straw and method of making the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4195035