Bottles and jars – Ejecting – Siphon type
Patent
1984-10-25
1986-07-08
Price, William
Bottles and jars
Ejecting
Siphon type
220 70, B65D 102, B65D 142, B65D 2300
Patent
active
045988315
ABSTRACT:
Here is disclosed a heat-resistant synthetic resin bottle which is biaxially oriented by axially stretching and air blowing an injected or extruded closed-end parison in a blow mold to carry out molding, whereby a bottom wall of the bottle is recessed toward its interior in the form of a dome and an annular peripheral edge for supporting the bottle itself is formed around the bottom wall, characterized in that a top portion of the bottom wall which thickens gradually from the annular peripheral edge to a central portion thereof is recessed upwardly from the underside of the top portion itself in order to thin the top portion, and the bottom wall between the top portion and the peripheral edge is partially outwardly bulged in order to radially form a predetermined number of triangular pyramid-shaped recessed section and bottom lands between said recessed section.
REFERENCES:
patent: 2481015 (1949-09-01), Ingersoll
patent: 3403804 (1968-10-01), Colombo
patent: 3598270 (1971-08-01), Adomaitis
patent: 3727783 (1973-04-01), Carmichael
patent: 3973693 (1976-08-01), Brocklehurst
patent: 4108324 (1978-08-01), Krishnakumar et al.
patent: 4134510 (1979-01-01), Chang
patent: 4247012 (1981-01-01), Alberghini
patent: 4254882 (1981-03-01), Yoshino
patent: 4355728 (1982-10-01), Yoshino et al.
Miyazawa Yoshiki
Nakamura Yoshinori
Nissei ASB Machine Co. Ltd.
Price William
Weaver Sue A.
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