Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Of varying cross-sectional area or with intermittent...
Patent
1981-08-10
1983-09-27
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Of varying cross-sectional area or with intermittent...
264248, 264285, 264295, 2643288, 264339, 425383, 425394, 425814, 425DIG34, B29D 500
Patent
active
044068492
ABSTRACT:
Slide fastener coupling elements are continuously manufactured from a molded strip of coupling element blanks at a speed which is substantially the same as the speed at which the molded strip is produced on a die wheel. The strip of coupling element blanks, as it is withdrawn from the die wheel, is folded about its longitudinal axis into a U-shape while the strip is being heated, and then is heated by hot air before it is shaped into slide fastener coupling elements of a finalized shape as they are heat-set. Then, the coupling elements thus formed are cooled and discharged at a speed equal to the peripheral speed of the die wheel.
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patent: 4336220 (1982-06-01), Takahashi
Takahashi Kihei
Takeshima Kiyoshi
Thurlow Jeffery R.
Yoshida Kogyo K. K.
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