Apparatus for the manufacture of a foam material ball with an em

Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Coacting shaping surfaces

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273 58R, 273DIG2, 264284, 264321, 425406, B29D 2700, B29C 300

Patent

active

042843987

ABSTRACT:
Method for the manufacture of a ball formed of foam material with surface embossing corresponding to a soccer ball, which includes subdividing the surface of the ball into a plurality of equilateral polygons, and embossing the contour of at least one polygon into the surface of the ball in stages.

REFERENCES:
patent: 2767436 (1956-10-01), Noland et al.
patent: 3069170 (1962-12-01), Dillon
patent: 3094758 (1963-06-01), Downie et al.
patent: 3214505 (1965-10-01), Pierkowski et al.
patent: 3647331 (1972-03-01), Kuratomi
patent: 3882218 (1975-05-01), Bixel
patent: 3994653 (1976-11-01), Marangoni
patent: 4053549 (1977-10-01), Vandor

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