Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1993-02-08
1994-06-21
Timm, Catherine
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
425525, 294211, 29447, B29C 4920, B29C 6566
Patent
active
053226623
ABSTRACT:
A dispensing package includes a bottle, made of a blow-moldable plastic and having a neck finish, a pouring spout and a closure. An undercut groove in the interior of the neck finish holds a bead on the spout. The spout may have a pour-back design. Threading the closure onto the neck finish engages a top surface of the neck finish just above the groove with a closure-mounted seal. The groove may result from molding the neck finish against a pin which is withdrawn from the neck finish while the plastic is still warm but has enough plastic memory to result in groove definition following pin removal. The bead of the spout may be press-fitted into the groove while the plastic is warm so that cooling-caused shrinkage firmly locks the spout in place.
REFERENCES:
patent: 3791098 (1974-02-01), Webster
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patent: 4143453 (1979-03-01), Taluba
patent: 4578028 (1986-03-01), Dirksing et al.
patent: 4984714 (1991-01-01), Sledge
patent: 4993605 (1991-02-01), Del'Re
Benioff B. Richard
Frazer John S.
Szczurek Tadeusz
Yaffa Richard A.
Manhattan Products, Inc.
Squire William
Timm Catherine
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