Moulding apparatus

Details Moulding apparatus Moulding apparatus

1975-04-14

1977-06-07

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Preform assembly means and means for bonding of plural...

With additional shaping means to form or reshape preform...

425233, 425388, 425405R, 425408, 425445, 425446, 425503, 425508, 425516, 425504, 156145, 156147, B29C 1700, B29F 100

Patent

active

040280420

ABSTRACT:
A moulding apparatus including a pair of mould cavities with locking spue grooves, means to form moulded rubber article parts in the cavities, means to prework the rubber without substantial curing before it is formed, means to pressurize the mould with gas and means to bring the mould cavities together to join the article parts. The arrangement for pressurizing the mould includes a retractable casing which is movable between a position in which the mould cavities are enclosed to permit their pressurization and a position in which the cavities are accessible outside the casing.

REFERENCES:
patent: 2098395 (1937-11-01), Law
patent: 2200634 (1940-05-01), O'Koornian
patent: 2490625 (1949-12-01), Hall
patent: 2531888 (1950-11-01), Nye et al.
patent: 2537089 (1951-01-01), Rempel
patent: 2560370 (1951-07-01), Roberts
patent: 2575190 (1951-11-01), Sedgwick
patent: 2783501 (1957-03-01), Kutik
patent: 3362045 (1968-01-01), Jones-Hinton et al.
patent: 3661489 (1972-05-01), Moore
patent: 3825457 (1974-07-01), Holroyd et al.

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