Bottles and jars – Multilayer barrier structure – Insulating material between spaced wall panels
Patent
1983-08-03
1984-12-25
Norton, Donald F.
Bottles and jars
Multilayer barrier structure
Insulating material between spaced wall panels
220 904, 222520, B65D 4706
Patent
active
044898401
ABSTRACT:
An isothermal container with a cup-shaped top is disclosed which has an outer body (3), closed at its bottom part, and an inner container body (6) with the same general shape as the outer body (3), the upper edge (4) of the outer body is turned inwardly and fits into an annular groove (5) in the inner body. A thermal insulation of the plastic-foam type (13), fills the space between the two bodies. An annular ridge (23) is formed on the upper part of the inner body and is surrounded by a tapered surface (7) with a slight outward and downward slant, the external edge of which extends into a downwardly inverted tapered surface, slanted inwardly, and meeting a horizontal annular surface projecting outwardly to form a recess (10) therebetween. A depending casing portion (8) of this annular member is fitted with an external thread (9) and an annular groove (5) adjacent its bottom edge, which mates with a corresponding portion of the outside container wall. A sealing ring (11) rests on the tapered surface (7) and is fitted into the recess (10), showing a slight upward protrusion in relation to the ridge (23) and having an annular projection (12) laterally. The cup-shaped top (2) is cylindrical and open at its upper end, thereby forming a drinking lip. A circle of holes (15) near the inside bottom (14) periphery of the cup permits communication with the interior of the inner container and enables flow of liquid to the cup when the cup is loosened from right engagement with the threaded connection.
REFERENCES:
patent: 1509419 (1924-09-01), Colgate et al.
patent: 3096897 (1963-07-01), Hansen
patent: 3285450 (1966-11-01), Piker
patent: 3542258 (1970-11-01), Marchant
patent: 3776433 (1973-12-01), DeTreitas
Norton Donald F.
Termolar S/A
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