Method and apparatus for blow molding a bottle with a...

Details Method and apparatus for blow molding a bottle with a... Method and apparatus for blow molding a bottle with a...

2006-11-28

2006-11-28

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

C264S534000, C264S155000

Reexamination Certificate

active

07141202

ABSTRACT:
A method for blow molding bottles having a hole formed in a molded interior recess extending from a top face of a bottle neck includes the steps of: (i) providing a mold having a neck forming cavity with an end flange surface therein; (ii) disposing a parison of molten material within the mold; (iii) introducing pressurized fluid into the parison to expand it against the mold walls, thereby forming a final shape of the bottle; (iv) forming the interior recess in the bottle by advancing a recess forming rod through a hole in the end flange surface and into the neck forming cavity; and (v) creating a dispensing hole in the interior recess by advancing a punch through a hole in an end face of the recess forming rod.

REFERENCES:
patent: 3821344 (1974-06-01), Peters
patent: 3973896 (1976-08-01), Peters
patent: 4116608 (1978-09-01), Uhlig
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patent: 4419323 (1983-12-01), Winchell
patent: 4550009 (1985-10-01), Burkel
patent: 6375891 (2002-04-01), Nishikawa et al.
patent: 6500379 (2002-12-01), Wrobbel
patent: 2003/0003252 (2003-01-01), Yun et al.
patent: 07214654 (1995-08-01), None

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