Laminated insulated hot drink cup

Details Laminated insulated hot drink cup Laminated insulated hot drink cup

1979-10-31

1981-04-14

Lowrance, George E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

220445, 220469, B65D 322, B65D 2520

Patent

active

042615011

ABSTRACT:
An insulated, decorative hot drink cup for hot coffee or the like is provided which can be grasped and drunk from without fear that the user's fingers will be burned. The cup includes an inner, integral, synthetic resin cup member having a series of spaced, exterior, longitudinally extending, triangular in cross section ribs on the sidewall thereof, and an outer decorative paper overwrap permanently applied over and in contact with the ribs. This structure defines a series of discrete, juxtaposed, dead air chambers or cells in the cup assembly sidewall for maximum heat insulation, and the thermally minimal, essentially line contact between the rib apices and overwrap enhances this effect. An uppermost circumferential bead formed on the cup member provides a further seal and prevents passage of liquid between the overwrap and member sidewall.

REFERENCES:
patent: Re25618 (1964-07-01), Goodman
patent: 2266828 (1941-12-01), Sykes
patent: 2675954 (1954-04-01), Vogel
patent: 3169689 (1965-02-01), Schwartz
patent: 3237834 (1966-03-01), Davis et al.
patent: 3456860 (1969-07-01), Janninck
patent: 3759437 (1973-09-01), Amberg

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