Rotational casting mold

Details Rotational casting mold Rotational casting mold

1976-09-20

1978-03-14

Husar, Francis S.

Static molds

Container-type molding device

Including auxiliary port for transmission of fluid, i.e.,...

249205, 425435, B29C 100, B29C 504

Patent

active

040787613

ABSTRACT:
A mold for rotational casting of plastics is disclosed. The mold is formed in two mating sections with one section having a raised tongue and the other having a groove disposed to receive the tongue. The mold sections have flat faces fitting together in sealing engagement. A channel is formed in one of the flat faces around the tongue, and aperture means are provided to communicate the channel with the outside of the mold. Also, additional aperture means are provided to connect the groove with the outside of the mold. Thus, entrapped gases are preferentially vented to the outside of the mold rather than inwardly where they could deform cast parts.

REFERENCES:
patent: 1525126 (1925-02-01), Goldstein
patent: 1946411 (1934-02-01), Roirant
patent: 2543332 (1951-02-01), Olsen et al.
patent: 2976571 (1961-03-01), Moslo
patent: 3015911 (1962-01-01), Payne
patent: 3555619 (1971-01-01), Bucy

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