Stepmolding process and apparatus

Details Stepmolding process and apparatus Stepmolding process and apparatus

1991-09-20

1992-11-17

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

264347, 264348, 425505, 425509, 425446, 425384, B29C 4326

Patent

active

051641429

ABSTRACT:
A process and apparatus are disclosed for step-molding elongated work pieces, such as generator components. A heated press includes a cooling box attached thereto, separated by a thermal insulating gasket. As a first portion of the work piece is being heat cured, a second portion extending adjacent the heated press is placed within the cooling box to prevent its being cured from residual heat of the press. After the first portion has been cured, the second portion is sequentially placed within the heated press. In this manner, the entire elongated work piece is cured and inadvertent "bumps" in the cured work piece are prevented to form the component to its desired shape.

REFERENCES:
patent: 2300760 (1942-11-01), Amigo
patent: 2682292 (1954-06-01), Nagin
patent: 3041660 (1962-07-01), Fink
patent: 3071805 (1963-01-01), Merkle
patent: 3529050 (1970-09-01), Smith
patent: 3661491 (1972-05-01), Troyer
patent: 4161383 (1979-07-01), Gadani
patent: 5043128 (1991-08-01), Umeda

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