Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Deforming the surface only
Patent
1997-11-10
2000-03-28
Echols, P. W.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Deforming the surface only
264319, 264321, 425363, 425374, B28B 1108
Patent
active
060427728
ABSTRACT:
A roller stamp includes a stamp case and a stamp roller mounted to the stamp case for rotation. The stamp roller is made of foamed polyolefin having pores capable of being impregnated with ink. A stamp pattern is formed on the stamp roller after the stamp roller is mounted to the stamp case. After the stamp roller is mounted to the stamp case, a stamp pattern is formed on the stamp roller by using a thermal head to selectively heat and close the pores in accordance with the stamp pattern.
REFERENCES:
patent: 5266257 (1993-11-01), Kildune
Miyata Hiroyasu
Shinohe Akihiro
Soma Masahiro
Alps Electric Co. ,Ltd.
Echols P. W.
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