Mold

Details Mold Mold

1975-07-15

1976-05-18

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

With means to gather excess or rejected stock material

425DIG42, 249 52, B29c 1100, B29h 306

Patent

active

039574113

ABSTRACT:
A mold for fabricating articles formed of a fluent material, especially rubber, comprising at least two mold parts enclosing a mold compartment. One of the mold parts possessing a tear or break groove at the region of the mold parting plane, the tear groove surrounding the mold compartment. The tear groove provided in said one mold part has an inner wall which is located exactly opposite the marginal or outer rim of the mold compartment formed in the other mold part and encloses an angle of about 90.degree. or less with the mold parting plane.

REFERENCES:
patent: 879363 (1908-02-01), Cheney
patent: 2148079 (1939-02-01), Martin
patent: 2354241 (1944-07-01), Anderson
patent: 2731669 (1956-01-01), Talalay
patent: 2913767 (1959-11-01), Simon
patent: 2976575 (1961-03-01), Daubenberger
patent: 3406430 (1968-10-01), Furstenburg et al.

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