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CA1075646A Expired / Lapsed CA ⏱️ 0.0 years remaining

Food container

Assignee: Individual
•
Filing: 1977-09-14
•
Granted: 1980-04-15
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Expires: 1997-09-14
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Abstract

Abstract ABSTRACT OF THE DISCLOSURE This invention discloses a novel food container for the storage and transport of food, particularly hot food such as pizza. It comprises an identical upper and lower portion, each portion having a flat, base surface, outwardly extending side walls with a circumferential lip therearound. A locking means is carried on the lip to releasably lock the upper and lower portions together. A plurality of vertical honeycombs are on the interior of the base surface and a plurality of buttresses are found in the interior side walls. The device is preferably made of an expanded material such as polystyrene. The device only requires a single mould to manufacture it and is an efficient, inexpensive and strong insulating container which has eliminated the problem of condensation within the containers of the prior art.

Inventors

  • 👤 Douglas J. Cottrell

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-02 17:13
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/34; B65D1/36; B65D11/00; B65D11/18; B65D11/1866; B65D11/188; B65D81/00; B65D81/38; B65D81/3813; B65D81/3816

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 104 words
An insulated food container for the storage and transport of food comprising: (a) an upper and lower portion, said upper and said lower portions being identical, each said portion comprising: (i) a flat base surface (ii) outwardly extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) a locking means adapted to releasably lock said upper and said lower portions together, (c) a plurality of vertical honeycombs on the interior surface of said base surface upstanding for a minor proportion of the depth of said portion, (d) a plurality of buttresses on the interior of each side wall.
Claim 2
Dependent Claim 104 words
An insulated food container for the storage and transport of food comprising: (a) an upper and lower portion, said upper and said lower portions being identical, each said portion comprising: (i) a flat base surface (ii) outwardly extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) a locking means adapted to releasably lock said upper and said lower portions together, (c) a plurality of vertical honeycombs on the interior surface of said base surface upstanding for a minor proportion of the depth of said portion, (d) a plurality of buttresses on the interior of each side wall.
Claim 3
Dependent Claim 49 words
An insulated food container as claimed in claim 1 wherein said locking means comprises a protrusion extending upwardly from the top surface of said lip about one-half of the circumference of said lip and a complementary recessed portion in the remaining one-half portion of the circumference of said lip.
Claim 4
Dependent Claim 21 words
An insulated food container as claimed in claims 1 or 2 wherein each buttress extends the height of the side wall.
Claim 5
Dependent Claim 33 words
An insulated food container as claimed in claims 1 or 2 wherein each buttress extends from the bottom of the side wall adjacent each honeycomb upwards from the height of the side wall.
Claim 6
Dependent Claim 28 words
An insulated food container as claimed in claims 1 or 2 wherein the height of each honeycomb is approximately one-quarter inch with a chamber diameter of three-eighths inch.
Claim 7
Dependent Claim 18 words
An insulated food container as claimed in claim 1 wherein the container is made of an expanded material.
Claim 8
Dependent Claim 16 words
An insulated food container as claimed in claim 6 wherein said container is made of polystyrene.
Claim 9
Dependent Claim 199 words
An insulated, hermetically-sealable, thin-walled food container for the storage and transport of food, comprising: (a) an upper portion and a lower portion, said upper and said lower portions being identical, each said portion comprising: (i) a thin-walled flat base surface, (ii) thin, outwardly-extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) locking means adapted to releasably and hermetically lock said upper and lower portions together, (c) a plurality of elongate wall members integral with and upstanding from the interior surface of said base surface, each of said plurality of wall members being integrally joined at each end thereof to two others of said wall members to define a regular pattern of hexagonally-shaped recesses upstanding from said base surface, except for said wall members immediately adjacent said side wall which are joined to each other at each end and from the outer perimeter of said regular pattern of recesses, and (d) a plurality of vertical elongate parallel ribs integral with and extending from the interior of each side wall to impart strength thereto, said ribs extending downwardly into integral join with the integrally-joined ends of said perimeter-forming wall members adjacent said side walls.
Claim 10
Dependent Claim 199 words
An insulated, hermetically-sealable, thin-walled food container for the storage and transport of food, comprising: (a) an upper portion and a lower portion, said upper and said lower portions being identical, each said portion comprising: (i) a thin-walled flat base surface, (ii) thin, outwardly-extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) locking means adapted to releasably and hermetically lock said upper and lower portions together, (c) a plurality of elongate wall members integral with and upstanding from the interior surface of said base surface, each of said plurality of wall members being integrally joined at each end thereof to two others of said wall members to define a regular pattern of hexagonally-shaped recesses upstanding from said base surface, except for said wall members immediately adjacent said side wall which are joined to each other at each end and from the outer perimeter of said regular pattern of recesses, and (d) a plurality of vertical elongate parallel ribs integral with and extending from the interior of each side wall to impart strength thereto, said ribs extending downwardly into integral join with the integrally-joined ends of said perimeter-forming wall members adjacent said side walls.
Claim 11
Dependent Claim 166 words
A polystyrene insulated food container for the storage and transport of food comprising: (a) an upper and a lower portion, said upper and said lower portions being identical, each portion comprising: (i) a flat base surface (ii) outwardly extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) a locking means adapted to releasably lock said upper and said lower portions together, said locking means comprising a protrusion extending from the top surface of said lip about one-half the circumference of said lip and a complementary recessed portion in the remaining one-half portion of the circumference of said lip; (c) a plurality of vertical honeycombs on the interior surface of said base surface upstanding for a minor proportion of the depth of said portion, and (d) a plurality of buttresses on the interior of each side wall, each buttress extending the height of the side wall and the base of each buttress being adjacent each honeycomb adjacent the side wall.
Claim 12
Dependent Claim 166 words
A polystyrene insulated food container for the storage and transport of food comprising: (a) an upper and a lower portion, said upper and said lower portions being identical, each portion comprising: (i) a flat base surface (ii) outwardly extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) a locking means adapted to releasably lock said upper and said lower portions together, said locking means comprising a protrusion extending from the top surface of said lip about one-half the circumference of said lip and a complementary recessed portion in the remaining one-half portion of the circumference of said lip; (c) a plurality of vertical honeycombs on the interior surface of said base surface upstanding for a minor proportion of the depth of said portion, and (d) a plurality of buttresses on the interior of each side wall, each buttress extending the height of the side wall and the base of each buttress being adjacent each honeycomb adjacent the side wall.
Claim 13
Dependent Claim 246 words
A polystyrene insulated hermetically-sealable, thin-walled food container for the storage and transport of food, comprising: (a) an upper portion and a lower portion, said upper and said lower portions being identical, each said portion comprising: (i) a thin-walled flat base surface, (ii) thin outwardly-extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) locking means adapted to releasably and hermetically lock said upper and said lower portions to-gether, said locking means comprising a protrusion extending upwardly from the top surface of said lip about one-half the circumference of said lip and a complementary recessed portion in the remaining one-half portion of the circumference of said lip; (c) a plurality of elongate wall members integral with and upstanding from the interior surface of said base surface, each of said plurality of wall members being integrally joined at each end thereof to two others of said wall members to define a regular pattern of hexagonally-shaped recesses upstanding from said base surface, except for said wall members immediately adjacent said side wall which are joined to each other at each end and form the outer perimeter of said regular pattern of recesses, and (d) a plurality of vertical elongate parallel ribs integral with and extending from the interior of each side wall to impart strength thereto, each rib extending the height of the side wall and downwardly into integral join with the integrally-joined ends of said perimeter-forming wall members adjacent said side walls.
Claim 14
Dependent Claim 246 words
A polystyrene insulated hermetically-sealable, thin-walled food container for the storage and transport of food, comprising: (a) an upper portion and a lower portion, said upper and said lower portions being identical, each said portion comprising: (i) a thin-walled flat base surface, (ii) thin outwardly-extending side walls, and (iii) a circumferential lip around the top of said side walls; (b) locking means adapted to releasably and hermetically lock said upper and said lower portions to-gether, said locking means comprising a protrusion extending upwardly from the top surface of said lip about one-half the circumference of said lip and a complementary recessed portion in the remaining one-half portion of the circumference of said lip; (c) a plurality of elongate wall members integral with and upstanding from the interior surface of said base surface, each of said plurality of wall members being integrally joined at each end thereof to two others of said wall members to define a regular pattern of hexagonally-shaped recesses upstanding from said base surface, except for said wall members immediately adjacent said side wall which are joined to each other at each end and form the outer perimeter of said regular pattern of recesses, and (d) a plurality of vertical elongate parallel ribs integral with and extending from the interior of each side wall to impart strength thereto, each rib extending the height of the side wall and downwardly into integral join with the integrally-joined ends of said perimeter-forming wall members adjacent said side walls.

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