Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1978-09-05
1980-12-16
Flint, Jr., J. Howard
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264132, 26432816, 264334, 264297, 249 67, 249110, 249142, 425572, 425556, 425588, B29F 114, B29F 106
Patent
active
042397243
ABSTRACT:
The method of making valued plastic articles, such as game tiles and the like, comprising providing in one of a pair of separable mold members ejector pins for forcibly ejecting the tiles and severing them from residual plastic and providing in the other mold member protuberances which form indentations in one face of each tile which are essentially identical to indentations formed in the other face by the ejector pins. Indicia designating the value of a tile is subsequently applied to either face, the necessity of sorting of the tiles prior to application of indicia being eliminated by the invention.
REFERENCES:
patent: 1930815 (1933-10-01), Lund
patent: 3559249 (1971-02-01), Patton
patent: 3651191 (1972-03-01), Glatt et al.
patent: 3767496 (1973-10-01), Amberg et al.
patent: 3904165 (1975-09-01), DenBoer
patent: 3982875 (1976-09-01), Abey
patent: 3996330 (1976-12-01), Jones et al.
Flint, Jr. J. Howard
U.S. Product Development Co.
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