Roll-stamper for forming substrate of information-recording medi

Details Roll-stamper for forming substrate of information-recording medi Roll-stamper for forming substrate of information-recording medi

1991-02-21

1992-12-22

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

Plural wear or shaping surfaces mounted for alternative use

425194, 425363, 425367, 425385, 425810, 264 13, 264 16, 264106, B29C 4346, B29D 1700

Patent

active

051733137

ABSTRACT:
A roll-stamper for forming substrates of an information-recording medium includes at least one stamper being fastened along a peripheral face of a mirror roller, carrying on a surface thereof patterns each corresponding to a preformat for an information recording medium, also having stoppers fixed along both edges on the reverse side thereof, and being fastened to the mirror roller by inserting the stoppers respectively into negative stopping-grooves cut into the mirror roller in parallel with the axis of the mirror roller.

REFERENCES:
patent: 3072519 (1963-01-01), Salzman
patent: 3387330 (1968-06-01), Lemelson
patent: 3874836 (1975-04-01), Johnson et al.
patent: 3893795 (1975-07-01), Nauta
patent: 4211743 (1980-07-01), Nauta et al.
patent: 4746220 (1988-05-01), Sukai et al.
patent: 4790893 (1988-12-01), Watkins
patent: 4836874 (1989-06-01), Foster
patent: 5048745 (1991-09-01), Sato et al.

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