Dispensing – Collapsible wall-type container – Nonmetallic
Patent
1990-07-09
1992-01-14
Shaver, Kevin P.
Dispensing
Collapsible wall-type container
Nonmetallic
222215, 249119, 425538, B65D 3508
Patent
active
050802607
ABSTRACT:
The bottle is made of thin-walled plastic produced by a blow-molding process; a bottom part (3) is pre-formed with an inwardly extending, in cross section essentially V-shaped folded part (13) which defines an elongated inner bottom fold line (8). The inner fold line (8) merges smoothly with body fold lines (15, 15a, 15b) extending longitudinally of the bottle. The inner bottom fold line (8) and the longitudinal fold line are in a single plane; the plane is transverse to the seam or junction lines (9) formed by molding the bottle in a two-part mold. The cross section of the bottle may be circular, rectangular, or hexagonal, and it is unitary with a pouring spout which extends, preferably with a reduced diameter, from the top portion of the bottle, so that, upon folding the bottle along the seam lines and expelling all air from the inside, the bottle can be compressed and reduced to small size upon air-tightly closing the spout.
REFERENCES:
patent: 2368944 (1945-02-01), Parkhurst
patent: 3288334 (1966-11-01), Corsette
patent: 3395836 (1968-08-01), Stahmer
patent: 3727803 (1973-04-01), Cobb
patent: 3926341 (1975-12-01), Lhoest
patent: 4158376 (1979-06-01), Erb
patent: 4674655 (1987-06-01), Lofgrer et al.
patent: 4898306 (1990-02-01), Pardes
During AG
Kaufman Joseph A.
Shaver Kevin P.
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