Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool
Reexamination Certificate
2007-08-28
2007-08-28
Heitbrink, Tim (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to heat or cool
C425S572000
Reexamination Certificate
active
11114146
ABSTRACT:
The present invention is an improved injection molding nozzle. The improved nozzle includes a nozzle body having a central melt channel and a terminal end. A distributor block is formed on the terminal end of the nozzle body, the distributor block having a nozzle melt channel and a series of distributor melt channels radiating from the nozzle melt channel. The nozzle melt channel is coupled to the central melt channel and each distributor melt channel terminates in a melt well. The improved nozzle further includes a nozzle ring which is formed on the end of the terminal end of the nozzle. The nozzle ring surrounds the distributor block and has a plurality of gate feeders, each of said gate feeders being in communication with a melt well. The distributor melt channels radiate symmetrically from the nozzle melt channel to feed the melt wells. The distributor block is made of a highly thermally conductive alloy such as BeCu and a heating mantle is provided on the nozzle body for keeping the nozzle at a suitable melt temperature.
REFERENCES:
patent: 4219323 (1980-08-01), Bright et al.
patent: 4345892 (1982-08-01), Schulte et al.
patent: 5268184 (1993-12-01), Gellert
patent: 5269676 (1993-12-01), Gellert
patent: 5324191 (1994-06-01), Schmidt
patent: 2002/0121713 (2002-09-01), Moss et al.
patent: 2002/0168442 (2002-11-01), Gould et al.
Gaul Harald
Gomes Manuel
Meksavanh Bounoth
Yen Beilei
Borges & Rolle LLP
Heitbrink Tim
XS Plastics Inc.
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