Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool
Patent
1991-05-16
1992-03-17
Heitbrink, Tim
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to heat or cool
2643288, 26432812, 425567, 425572, 425588, B29C 4573
Patent
active
050964119
ABSTRACT:
A cast manifold for distributing pressurized melt in an injection molding system. The melt is received at a central inlet on the rear surface of the manifold to an inlet portion of a melt passage. Four identical outlet portions of the melt passage branch radially outward from the inlet portion to equally radially spaced outlets on the forward surface of the manifold. Each outlet portion extends around a first smoothly curved bend from the inlet portion, along a radial portion, and then around a second smoothly curved bend to the outlet. By casting on a removable ceramic mold, the bends in the melt passage are very smoothly curved and do not all have to extend in a common plane. Furthermore, the radial portions angle a substantial distance rearwardly as they extend outwardly which allows the thickness of the manifold to be reduced.
REFERENCES:
patent: 3849048 (1974-11-01), Bielfeldt et al.
patent: 4609138 (1986-09-01), Harrison
patent: 4648546 (1987-03-01), Gellert
patent: 4688622 (1987-08-01), Gellert
patent: 4761342 (1988-08-01), Bjorhaag et al.
patent: 4761343 (1988-08-01), Gellert
patent: 4854851 (1989-08-01), Gellert
patent: 4865535 (1989-12-01), Gellert
patent: 4865535 (1989-09-01), Gellert
Mold Master's Catalog--Your Connection to Injection Molding Excellence: Modular Manifolds, Apr.-1986.
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