Injection moulding manifold

Details Injection moulding manifold Injection moulding manifold

1974-10-29

1976-08-31

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

425464, B29F 106, B28B 1300

Patent

active

039778207

ABSTRACT:
A manifold for dividing a stream of plasticised material into a plurality of sub-streams as a main channel terminating in an inwardly tapering end wall. A plurality of sub-channels are symmetrically arranged in the inwardly tapering end wall and are provided with transition passages inwardly tapering away from the main channel, adjoining transition passages intersecting to form intersection edges havin knife like edges facing the main channel. The vertex angle of the inwardly tapering end wall and of the transition passages is less than 90.degree. and where there are three or more sub-channels the end wall of the main channel merges substantially tangentially with the intersection edges. A manifold is particularly useful for dividing a main stream of heat sensitive plasticized material such as PVC into a plurality of sub-streams.

REFERENCES:
patent: 2433065 (1947-12-01), Rubissow
patent: 3204293 (1965-09-01), Brownson
patent: 3302882 (1967-02-01), Hutton
patent: 3304009 (1967-02-01), Hutton
patent: 3430939 (1969-03-01), Berry
patent: 3551951 (1971-01-01), Schiesser
patent: 3568256 (1971-03-01), Johnson
patent: 3595480 (1971-07-01), Kunioka
patent: 3750952 (1973-08-01), Hellmuth
patent: 3758252 (1973-09-01), Kohler

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