Equipment and process for producing a molded article

Details Equipment and process for producing a molded article Equipment and process for producing a molded article

2007-05-22

2007-05-22

Gupta, Yogendra (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and opposed coaxial dynamic press members

Opposed press members each moving one at a time toward the...

C425S396000, C425S468000, C425SDIG010

Reexamination Certificate

active

10607847

ABSTRACT:
The present invention relates to a process and equipment for producing a molded article, especially a flat molded article, which has cavities and webs between the cavities, which webs essentially join two disks, wherein the equipment includes a press mold with a die, which forms the outer circumference of the molded article, and two rams, which are arranged as a lower ram and an upper ram and form the outer surfaces of the disks. The equipment includes a segment ram integrated in the lower ram and/or in the upper ram, which segment ram has ram segments with essentially the cross-sectional shape of the above-mentioned webs, with which ram segments the segment ram moves into and engages recesses with the same cross-sectional shape in the lower ram or upper ram, and by a removable core, which can be inserted in the press mold and has the core segments that form the above-mentioned cavities, such that the spaces between the core segments in the press mold are arranged congruently with the ram segments mentioned above. To produce a ring-shaped molded article, the press mold which is used is additionally provided in an already well-known way with a mandrel that forms the inner circumference.

REFERENCES:
patent: 4392800 (1983-07-01), Apuzzo
patent: 6086814 (2000-07-01), Krenkel et al.
patent: 6294114 (2001-09-01), Muirhead
patent: 6797094 (2004-09-01), Pacchiana et al.

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