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
2005-11-01
2005-11-01
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
C264S328150, C425S572000
Reexamination Certificate
active
06960072
ABSTRACT:
A hot sprue bushing is provided for transporting plasticized material from an injection nozzle to a mold cavity while controlling the temperature of the plasticized material. The hot sprue bushing has an elongate body having an inlet end for receiving the plasticized material, an outlet end for discharging the material, and a through passage for transporting plasticized material therethrough. The body also has first and second surfaces on opposed sides of the through passage and electrical heating means disposed adjacent the first and second surfaces respectively, the electrical heating means extending along at least a major portion of the length of the elongate body. Finally, the bushing has retaining means for retaining the first and second electrical heating means adjacent the first and second surfaces respectively and in heat conducting relationship therewith.
REFERENCES:
patent: 4034952 (1977-07-01), Stewart
patent: 4039952 (1977-08-01), Huntley
patent: 4266723 (1981-05-01), Osuna-Diaz
patent: 4273525 (1981-06-01), Reitan
patent: 4309163 (1982-01-01), Cottancin
patent: 4563149 (1986-01-01), Landis
patent: 4593182 (1986-06-01), Schwarzkopf
patent: 4666396 (1987-05-01), Landis
patent: 4882469 (1989-11-01), Trakas
patent: 5032078 (1991-07-01), Benenati
patent: 5213824 (1993-05-01), Hepler
patent: 5324191 (1994-06-01), Schmidt
patent: 5334006 (1994-08-01), Hepler et al.
patent: 5505613 (1996-04-01), Krummenacher
patent: 5853631 (1998-12-01), Linehan
patent: 5955120 (1999-09-01), Deissler
patent: 6095789 (2000-08-01), Hepler et al.
patent: 6302680 (2001-10-01), Gellert et al.
Caufield Francis J.
Heitbrink Tim
Polyshot Corporation
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