Process of drawing a shaped plastic shoe having hollow pointed p

Details Process of drawing a shaped plastic shoe having hollow pointed p Process of drawing a shaped plastic shoe having hollow pointed p

1974-05-13

1977-05-24

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Stretching or stretch forming

264154, 264288, 264DIG47, B29C 1702

Patent

active

040256014

ABSTRACT:
A process of cold drawing a shaped plastic sheet wherein said sheet has an array of substantially parallel rows of hollow pointed projections on one or both faces; said projections having at least a portion of the distal portion of the sides at an angle of over 60.degree. to the median plane of the sheet which process comprises cold drawing the shaped plastic sheet along an axis in the plane of the sheet normal to the rows of hollow projections.

REFERENCES:
patent: 3441638 (1969-04-01), Patchell et al.
patent: 3470595 (1969-10-01), Goppel
patent: 3484835 (1969-12-01), Trounstine et al.
patent: 3574809 (1971-04-01), Fairbanks et al.
patent: 3682760 (1972-08-01), Fairbanks

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