Bottles and jars – Multilayer barrier structure – Coating or lamination
Patent
1980-03-03
1983-01-11
Norton, Donald F.
Bottles and jars
Multilayer barrier structure
Coating or lamination
220 69, B65D 2300
Patent
active
043678203
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a relatively lightweight bottle formed from a saturated polyester resin and adapted to be filled with liquid such as a carbonated beverage under a relatively high pressure. More particularly, this invention relates to such a bottle in combination with a detachable bottle stand for supporting the bottle in an upright position.
BACKGROUND OF THE INVENTION
Conventionally, glass bottles have been used whenever it has been desired to fill a relatively large container with a liquid at a relatively high pressure. This is because the glass material is capable of withstanding the pressure applied thereto by the liquid. However, the weight of the liquid within the bottle, together with the inherent weight and fragility of the glass makes transportation and handling of such glass bottles extremely difficult and thus relatively costly.
Lightweight bottles formed from a saturated polyester resin material have been proposed for holding liquids such as carbonated beverages under relatively high pressures. However, these saturated polyester resin bottles must be formed with sloping or bulging contours in order to withstand satisfactorily the fluid pressure. This results in a bottle molded to have a downwardly bulging bottom incapable of supporting the bottle in an upright position ready for use. Accordingly, when such saturated polyester resin bottles are used, it is necessary to provide an independent supporting base or stand for supporting the filled bottle in an upright position. However, in the prior art, no bottle stand has been found satisfactory with regard to production cost, or with regard to capability for firmly supporting a filled and pressurized bottle in an upright position.
SUMMARY OF THE INVENTION
In accordance with the invention, a saturated polyester resin bottle is molded to have a downwardly bulging, generally spherically-shaped bottom to enable the bottle to endure a fluid charge under a relatively high pressure. The bottle includes near its bottom a reduced diameter portion for reception of a bottle stand for supporting the bottle in an upright position ready for use. The bottle stand is also formed from a saturated polyester resin to comprise a cylindrical wall for surrounding the reduced diameter portion of the bottle, and a radially inwardly projecting bottle holding portion for receiving and supporting the bottle bottom. The stand also includes a flatsurfaced base or lower end for firmly supporting the bottle in the upright position. In some embodiments of the invention, the lower end of the stand is widened for increased support area, while in other embodiments the stand is ribbed for increased strength.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings illustrate the invention. In such drawings:
FIG. 1 is a fragmented side elevation of a saturated polyester resin bottle and stand according to the present invention;
FIG. 2 is perspective view of a bottle stand during formation thereof;
FIG. 3 is a fragmented side elevation showing a modification of the bottle stand;
FIGS. 4 and 5 are fragmented side elevations showing embodiments in which the respective bottle stands are formed with annular projections;
FIG. 6 is a fragmented side elevation showing a saturated polyester resin bottle and a bottle stand with a widened lower end;
FIGS. 7A and 7B are a fragmented side elevation and a bottom view showing an embodiment with a ribbed bottle stand;
FIGS. 8A and 8B are a fragmented side elevation and a bottom view with a modified ribbed bottle stand;
FIG. 9A is a fragmented side elevation showing a bottle with a stepped bottle stand;
FIG. 9B is a fragmented side elevation showing a modified form of a stepped bottle stand;
FIG. 10A is a fragmented side elevation showing a bottle with a bottle stand having a flat-surfaced lower end; and
FIG. 10B is a sectional view illustrating molding of the bottle stand to be used in the embodiment of FIG. 10a.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A bottle of a saturated polyester resin
REFERENCES:
patent: 716800 (1902-12-01), Wood
patent: 2184151 (1939-12-01), Rueppel
patent: 3722725 (1973-03-01), Khetani et al.
patent: 3804281 (1974-04-01), Eckdahl
patent: 3927782 (1975-12-01), Edwards
patent: 3948404 (1976-04-01), Collins et al.
patent: 4196039 (1980-04-01), Jakobsen
Nozawa Takamitsu
Saito Tadao
Tsukada Takami
Yoshino Yataro
Norton Donald F.
Yoshino Kogyosho Co. Ltd.
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