Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Of varying cross-sectional area or with intermittent...
Patent
1975-05-12
1976-06-15
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Of varying cross-sectional area or with intermittent...
264165, 264292, 264322, B29B 302, B29C 1703
Patent
active
039638138
ABSTRACT:
A process of manufacturing a cuspated sheet comprising deforming a sheet of hermoplastic material by pressing against one face of a molten sheet of the material the cold outer tips of a first array of pointed pins set in a first block and simultaneously pressing against the second face of the material the cold outer tips of a second array of projections set in a second block so that the arrays interpenetrate in such a manner that the projections on the second block are spaced from the projections of the first block by a distance greater than the thickness of the sheet and wherein the temperature of the cold outer tips of the arrays is less than the melting point of the thermoplastic material.
REFERENCES:
patent: 2878513 (1959-03-01), Slaughter
patent: 3169274 (1965-02-01), Colombo
patent: 3220544 (1965-11-01), Lovell
patent: 3682760 (1972-08-01), Fairbanks
patent: 3724673 (1973-04-01), Ryon
Hansen Henry
Kucia Richard R.
Rubens G. J.
The United States of America as represented by the Secretary of
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