Hot passage manifold system

Details Hot passage manifold system Hot passage manifold system

1991-08-29

1993-12-14

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With coupling between charger and mold

2642972, 2643281, 425570, 425571, 425572, B29C 4522

Patent

active

052696774

ABSTRACT:
A hot passage nozzle system including a manifold block, nozzle plate and one or more sprue bushings. At one end the sprue bushings are screwed into mating receptacles in the manifold block and centered at the exit openings of the material passageways in the block. The other ends of the sprue bushings are centered in the nozzle plate. The sprue bushings have annular grooves adjacent the connection with the manifold block creating points of flexure in order to accommodate dimensional changes due to temperature changes during use, and also to accommodate manufacturing tolerances.

REFERENCES:
patent: 4266723 (1981-05-01), Osuna-Diaz
patent: 5028227 (1991-07-01), Gellert
Goldbach, Hubert; "Heiskanal-Werkzeuge fur die Verarbeitung Technischer Thermoplaste (wie ABS, PA, PBTP, PC)", pp. 150-154.

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