Plastic article or earthenware shaping or treating: apparatus – Preform assembly means and means for bonding of plural... – Reshaping means utilizing fluid pressure directly contacting...
Reexamination Certificate
2006-01-10
2006-01-10
Davis, Robert B. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Preform assembly means and means for bonding of plural...
Reshaping means utilizing fluid pressure directly contacting...
C425S525000, C425S533000
Reexamination Certificate
active
06984119
ABSTRACT:
A dual-chamber container is formed in an injection blow molding process. Two preforms are injection molded around respective core rods. The preforms and core rods are then moved to a blow mold, in which the preforms are molded to the confines of the mold. The blow mold has partial walls between the two cavities, which provide directional control over the preforms as the preform wall portions are blown against and contact welded to each other. The outer walls of the preforms, which must travel and stretch a greater amount than the inner walls, are formed thicker in the preform molding operation.
REFERENCES:
patent: 2013382 (1935-09-01), Garwood
patent: 3189422 (1965-06-01), Shea et al.
patent: 3308214 (1967-03-01), Schöllauf
patent: 3707591 (1972-12-01), Chalfant
patent: 4065536 (1977-12-01), Lucas
patent: 4070140 (1978-01-01), Lucas et al.
patent: 4184417 (1980-01-01), Chancellor
patent: 4984715 (1991-01-01), Green
patent: 5049224 (1991-09-01), Umezawa et al.
patent: 5135702 (1992-08-01), Eales
patent: 5232108 (1993-08-01), Nakamura
patent: 5269441 (1993-12-01), O'Meara
patent: 5692626 (1997-12-01), Wehrle et al.
patent: 5804227 (1998-09-01), Deardurff et al.
patent: 5882574 (1999-03-01), Geisinger
patent: 5921440 (1999-07-01), Maines
patent: 5932166 (1999-08-01), Bousselin et al.
Belcher, “Injection Blow Molding,”Plastic Blow Molding Handbook, Ch. 3, pp. 61-82 (1990).
Hickman Randall A.
Weiss Daniel G.
Davis Robert B.
Owens-Illinois Health Care Packaging Inc.
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