Device and method for removal of preforms

Details Device and method for removal of preforms Device and method for removal of preforms

2007-02-13

2007-02-13

Davis, Robert B. (Department: 1722)

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

C264S334000, C241S101400, C425S190000, C425S215000, C425S317000, C425S4360RM

Reexamination Certificate

active

10948673

ABSTRACT:
A device for fracturing a defective preform for use in blowmolding is claimed. The preform has head end and a tail end and the device comprises a tube with walls defining a cavity for accepting the defective preform while the defective preform is on a core of an injection molding apparatus, an attachment element that attaches the tube to the injection molding apparatus, and locates the tube relative to the core; and a percussion instrument that contacts and breaks the defective preform at the tail end of the preform.

REFERENCES:
patent: 4025261 (1977-05-01), Rutkowski et al.
patent: 4187267 (1980-02-01), Fisher et al.
patent: 4200428 (1980-04-01), Andrews
patent: 5391332 (1995-02-01), Campbell et al.
patent: 5556649 (1996-09-01), Sumioka et al.
patent: 6189701 (2001-02-01), Winter

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