Foldable plastic bottle, blow mold form to make the bottle, and

Details Foldable plastic bottle, blow mold form to make the bottle, and Foldable plastic bottle, blow mold form to make the bottle, and

1992-07-28

1994-05-31

Kashnikow, Andres

Dispensing

Collapsible wall-type container

Nonmetallic

222215, 249119, 425538, B65D 3508

Patent

active

053161840

ABSTRACT:
To place material accumulations, which is unavoidable upon blow-molding a bottle, in a separable two-part blow mold form away from a bottom fold line (2) of the bottle, in which the bottom portion of the bottle is formed with a generally inverted V-shaped depression (3) and the apex of the V defines the bottom fold line, the separating seam (9) in the bottom portion is placed at an angle (.alpha.) with respect to the bottom fold line (2), a central region of the bottom separating seam intersecting, at least approximately, the bottle axis (17). The mold form has a body separating plane (12) and an end portion separating plane (16, 23, 25) in which the end portion separating plane is angled by the angle (.alpha.) with respect to the body separating plane. Upon blow-molding, the bottom seam (9) and the bottom fold line (2) will be non-congruent, and material accumulation (11) upon blow-molding the bottle will occur at locations remote from the bottom fold line (2), thus not interfering with folding the bottle along the bottle fold lines (2, 15). This method is suitable for bottles of integral shape, as well as bottles having an integral molded-in handle.

REFERENCES:
patent: 1625398 (1927-04-01), Schaefer
patent: 2368944 (1945-02-01), Parkhurst
patent: 3288334 (1966-11-01), Corsette
patent: 3592885 (1971-07-01), Goins et al.
patent: 3926341 (1975-12-01), Lhoest
patent: 4674655 (1987-06-01), Lofgrer et al.
patent: 4898306 (1990-02-01), Pardes
patent: 5080260 (1992-01-01), During
patent: 5174458 (1992-12-01), Segati

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