Method of manufacturing a plurality of rotational members

Details Method of manufacturing a plurality of rotational members Method of manufacturing a plurality of rotational members

1988-04-18

1990-04-17

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

264242, 264317, 249 59, 425572, 425577, 425588, B29C 4544

Patent

active

049178466

ABSTRACT:
A plurality of rotational members which comprise an inner shell and an outer shell rotatable relative to each other and in which a soluble film is fixed to the inner periphery or the outer periphery of one of the shells, the shell with the soluble film fixed thereto is the shaping mold of a molding machine for molding the other shell, and a plurality of rotational members comprising an inner shell and an outer shell are molded through the soluble film, whereafter the soluble film is dissolved and removed.

REFERENCES:
patent: 2548353 (1951-04-01), Cunningham
patent: 3061887 (1962-11-01), Clarke
patent: 3081644 (1963-03-01), Hudgens
patent: 3616520 (1971-11-01), Bucalo
patent: 4385023 (1983-05-01), Sumi
patent: 4535518 (1985-08-01), Jaqua

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