U.S. patent application number 12/473036 was filed with the patent office on 2010-12-02 for portable compartmentalized thermal food container.
Invention is credited to Sharon Wolfe.
Application Number | 20100301056 12/473036 |
Document ID | / |
Family ID | 43219084 |
Filed Date | 2010-12-02 |
United States Patent
Application |
20100301056 |
Kind Code |
A1 |
Wolfe; Sharon |
December 2, 2010 |
Portable Compartmentalized Thermal Food Container
Abstract
A portable thermal food storage system that separately stores a
variety of food types in a variety of sizes. The device partitions
the internal space to allow multiple food items to be separately
stored without contacting one another. One or more partitions may
be removed or added to accommodate different types of food. The
thermal food storage system also has an irregular interior surface
of which provides air channels under the food items to prevent the
food items from becoming soggy.
Inventors: |
Wolfe; Sharon; (Delray
Beach, FL) |
Correspondence
Address: |
JOHN C. SMITH, P.A.
4125 NW 58th LANE
BOCA RATON
FL
33496
US
|
Family ID: |
43219084 |
Appl. No.: |
12/473036 |
Filed: |
May 27, 2009 |
Current U.S.
Class: |
220/592.01 ;
220/529 |
Current CPC
Class: |
B65D 81/263 20130101;
B65D 2585/366 20130101; B65D 81/3813 20130101 |
Class at
Publication: |
220/592.01 ;
220/529 |
International
Class: |
B65D 81/38 20060101
B65D081/38; B65D 25/04 20060101 B65D025/04 |
Claims
1. A portable thermal food storage system, comprising: an external
case having an upper portion and a lower portion, the upper and
lower portions each having a proximal end and a distal end; at
least one food container removably secured to the proximal end and
at least one food container secured to the distal end; and a food
partition removably secured to the lower portion, between the
proximal and distal ends of the lower portion, such that, when
secured to the lower portion, a first food storage cavity is formed
under the food partition and a second food storage cavity is formed
above the food partition; whereby multiple food items can be stored
in the portable thermal food storage system.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] This invention relates in general to a thermal container for
storage of hot or cold food items, and more particularly it relates
to a thermal container which has removable and/or adjustable
compartments which provide compartmentalized storage for separately
storing multiple food items, and which provides airflow around the
bottom of the food items to prevent food items from becoming
soggy.
[0003] 2. Background of the Invention
[0004] Many individuals carry hot or cold food to other locations
for a variety of purposes. For example, many students and working
people carry lunch to their schools and work places on a regular
basis. Many other individuals carry foods for recreational
purposes, such as picnicking, boating, going to the beach, etc.
Unfortunately, they often are unable to maintain food items at
desirable temperatures, and as a result, they carry items which can
be enjoyed at ambient temperatures, such as sandwiches. While these
items are enjoyable, the inability to maintain particular food
items at desirable temperatures greatly limits the types of food
that individuals may enjoy. It would be desirable to have a method
of transporting and maintaining a wide variety of food types at
their optimal temperatures.
[0005] One attempt to address this problem has been the development
of thermoses and coolers. However, these devices have their own
drawbacks in that they generally provide a single storage area,
such as a thermos for holding coffee or soup, or a cooler with a
large internal bulk storage area for stacking a variety of items
one on top of another. It would be desirable to have a device
capable of separately storing a plurality of food items such that
they are maintained in proper condition without being crushed or
damaged.
[0006] Another problem associated with the storage of food in
portable containers is that when foods are placed against flat
surfaces, the surface of the food in contact with the flat surface
may become soggy. This significantly decreases the enjoyment of
most individuals when they finally begin their meal. In addition to
the need to prevent unnecessary impact damage to food prior to
consumption, the prior art has also failed to provide a method of
protecting solid food from becoming soggy when stored in a
container. It would be desirable to have a method of keeping food
fresher and avoiding sogginess which occurs due to the way the food
is stored.
SUMMARY OF THE INVENTION
[0007] The invention provides a thermal food storage system
configured to hold a variety of food types in a variety of sizes.
In addition, it also partitions the internal storage space to allow
multiple food items to be separately stored without the food items
contacting one another. One or more partitions may be removed or
added to accommodate different types of food. Further, the thermal
food storage system has an irregular interior surface of which
provides air channels under the food items to prevent the food
items from becoming soggy.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a top view of a preferred embodiment of the
thermal food storage system in the closed configuration.
[0009] FIG. 2 is a side view of a preferred embodiment of the
thermal food storage system in the closed configuration.
[0010] FIG. 3 is a top view of a preferred embodiment of the
thermal food storage system in the open configuration.
[0011] FIG. 4 is a side cutaway view of a preferred embodiment of
the thermal food storage system illustrating multiple food items
stored separately within.
[0012] FIG. 5 is a side cutaway view of a preferred embodiment of
the thermal food storage system, with the food partitions removed,
and a single large food item stored within.
[0013] FIG. 6 is a top view of an alternative preferred embodiment
of the thermal food storage system in the closed configuration.
[0014] FIG. 7 is a bottom view of an alternative preferred
embodiment of the thermal food storage system in the closed
configuration.
[0015] FIG. 8 is a bottom edge view of an alternative preferred
embodiment of the thermal food storage system in the closed
configuration.
[0016] FIG. 9 is a top edge view of an alternative preferred
embodiment of the thermal food storage system in the closed
configuration.
[0017] FIG. 10 illustrates an alternative preferred embodiment of
the thermal food storage system in the open configuration.
[0018] FIG. 11 illustrates an alternative preferred embodiment of
the thermal food storage system in the open configuration with the
condiment container removed.
[0019] FIG. 12 illustrates an alternative preferred embodiment of
the thermal food storage system in the open configuration with the
condiment container and food storage shelf removed.
[0020] FIG. 13 is a top perspective view of a preferred embodiment
of the condiment container.
[0021] FIG. 14 is a top perspective view of a preferred embodiment
of the condiment container with the lid detached.
[0022] FIG. 15 is a front view of a preferred embodiment of the
food storage shelf.
[0023] FIG. 16 is an edge view of a preferred embodiment of the
food storage shelf.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0024] Prior to a discussion of the figures, an overview of the
invention will be presented. The invention is a thermal food
storage system capable of holding multiple hot or cold food items.
The thermal food storage system has a large internal cavity capable
of holding a single large food item, or separately holding multiple
food items through the use of one or more partitions.
[0025] Another feature of the invention is a plurality of air
channels which are provided by an irregular interior surface of the
thermal food storage system. The air channels are designed to
provide a path for airflow under the bottom of the food item when
it is placed in the internal cavity of the thermal food storage
system. The purpose of allowing airflow over the bottom of the food
item is to prevent it from becoming soggy, which would occur when
many types of foods such as pizza or certain sandwiches are stored
on a flat surface. By keeping the lower surface of the food crisp
and dry, it will be more enjoyable when eaten.
[0026] Another feature of the invention provides a hinged lid with
a peripheral seal designed to prevent air from escaping the
internal cavity of the thermal food storage system when it is in
the closed position. Purpose of this is to prevent temperature
changes which would occur if airflow was possible between the
internal cavity and the external environment.
[0027] An advantage of the invention is that the thermal food
storage system provides a single storage device that can transport
a variety of food types and sizes. In addition, it provides a
single device that can transport solid and/or liquid foods.
[0028] Having discussed the invention in general, we turn now to a
detailed discussion of the drawings.
[0029] FIG. 1 is a top view of a preferred embodiment of the
thermal food storage system 1 in the closed configuration. In this
view, the upper portion 2 of the thermal food storage system 1 is
shown. Those skilled in the art will recognize that the shape of
the thermal food storage system 1 is arbitrary, and can take any
suitable form. Likewise, the size can vary based on its intended
use.
[0030] FIG. 2 is a side view of a preferred embodiment of the
thermal food storage system 1 in the closed configuration. The
external body of the thermal food storage system 1 has an upper
portion 2 and a lower portion 3. In the preferred embodiment, the
upper portion 2 and the lower portion 3 form a clamshell structure
and fit securely together in the closed position as shown. Also
shown in this figure is lock assembly 21. In this figure, the lock
assembly 21 is shown as a conventional slide lock. However, any
type of suitable locking mechanism may be used to secure the upper
portion 2 and the lower portion 3 together.
[0031] FIG. 3 is a top view of a preferred embodiment of the
thermal food storage system 1 in the open configuration. The upper
portion 2 is shown attached to the lower portion of 3 by hinge 4.
Of course, the location of the hinge can vary based on design
choices. Also shown in this figure is peripheral seal 5 which
extends around the periphery of the lower portion 3. When upper
portion 2 and lower portion 3 are in the closed position,
peripheral seal 5 forms an airtight secure seal which prevents
airflow from the external environment which would affect the
internal temperature. As a result, the thermal food storage system
1 can maintain the internal temperature for longer periods of
time.
[0032] Also shown in this figure are optional food containers 6-7.
Food containers 6-7 are used to hold foods, such as soups,
vegetables, etc., in separate compartments. This provides the
ability for an individual to carry a complete meal without
contaminating one type of food with another. In the preferred
embodiment, food containers 6-7 are equipped with sealable lids
16-17 (shown below in regard to FIG. 4).
[0033] Also shown in this figure is food partition 8. Food
partition 8 provides a raised platform which separates the internal
storage space of the thermal food storage system 1. By partitioning
the internal space, multiple food items can be stored separately
from one another. Also shown are ventilation apertures 9 which are
intended to provide airflow to the bottom of the food resting on
top of food partition 8. The airflow prevents food resting on food
partition 8 from becoming soggy. By preventing the food from
becoming soggy, a more enjoyable meal is provided to the user. Also
shown in this figure are optional partition lifts 10. Partition
lifts 10 provide a convenient place to grasp food partition 8 to
remove it when desired.
[0034] Food partition 8 is intended to be removable so that larger
items can be stored within thermal food storage system 1. Likewise,
food containers 6-7 are also intended to be removable for the same
reason. Food containers 6-7, food partition 8, peripheral seal 5,
upper portion 2, lower portion 3, and hinge 4 can all be fabricated
from any suitable material. Likewise, their size and shape can vary
to suit design goals.
[0035] FIG. 4 is a side cutaway view of a preferred embodiment of
the thermal food storage system 1 illustrating multiple food items
12-15 stored separately within the thermal food storage system 1. A
sandwich 12 is illustrated in the lower storage cavity beneath food
partition 8. The internal surface of lower portion 3 has an
irregular surface 11, which can be formed from ridges, bumps,
projections, etc. for the purpose of providing airflow under food
items such as sandwich 12. These projections serve to form an
irregular surface 11 that has the same function as ventilation
apertures 9 in food partition 8.
[0036] Food containers 6-7 are shown containing liquid foods 13
(which may be soup, a beverage, etc.), or granular foods 14 (which
may be vegetables, etc.). Food containers 6-7 are also shown with
sealable lids 16-17, respectively. Sealable lids 16-17 allow foods
in storage containers 6-7 to be safely contained without spillage
while the thermal food storage system 1 is transported.
[0037] Also shown in this figure is another item, pizza 15, which
is stored in the upper storage cavity on top of food partition 8.
Again, food such as this would benefit from ventilation apertures 9
which would serve to keep the food in a fresher state. As can be
seen from this figure, the invention provides a single device which
can conveniently transport and store an entire meal in a thermally
protected environment.
[0038] FIG. 5 is a side cutaway view of a preferred embodiment of
the thermal food storage system 1, with the food partition 8 and
storage containers 6-7 removed. This allows the separate food
cavities created by partition 8 to be combined into a single large
storage cavity. At times, an individual may desire to transport
larger food items which would not normally fit within the thermal
food storage system 1 if the food containers 6-7 in the food
partition 8 were present. Having a single large storage cavity
provides the ability for a single large food item, such as a
submarine sandwich 18, to be stored within the thermal food storage
system 1. In a preferred embodiment, the internal components are
removable to allow larger food items, such as the submarine
sandwich 18 illustrated herein, to be conveniently stored when
desired.
[0039] In addition to the foregoing embodiments, it is also
possible to have different thermal zones inside the thermal food
storage system 1. In particular, food containers 6-7 can be
fabricated such that they are each thermally insulated. This would
allow both cold and hot items to be simultaneously and conveniently
stored within the thermal food storage system 1. As a result, a
wider variety of meals can be stored for convenient transport. Food
containers 6-7 can even have internal compartments to hold
conventional cold packs to keep items stored within them at colder
temperatures than the rest of the items stored in the thermal food
storage system 1.
[0040] Regarding the food platform 8, it should be noted that in
the structure used throughout the embodiments discussed above, a
particular shape was used. However, since the internal components
of the thermal food storage system 1 are all removable, a variety
of food platform structures can be used and substituted for one
another. In particular, a food platform 8 can be designed which
holds multiple items having one or more different shapes. In
addition, all of the internal structures used by the system may be
secured so that they are immobile once inserted into the thermal
food storage system 1.
[0041] FIG. 6 is a top view of an alternative preferred embodiment
of the thermal food storage system 1 in the closed configuration.
In this embodiment, the shape was selected with no sharp corners to
avoid accidental injury to children using the thermal food storage
system 1 at school or elsewhere. In addition, the top 22 of the
device has a minimum number of parts to reduce manufacturing costs.
Also shown in this figure is locking mechanism 23 on the top edge
of the thermal food storage system 1. Those skilled in the art will
recognize that while the shape in this embodiment provides
particular advantages, a wide variety of shapes can be used to suit
particular design choices.
[0042] FIG. 7 is a bottom view of an alternative preferred
embodiment of the thermal food storage system 1 in the closed
configuration. This figure also illustrates molded footpads 24 on
the bottom 25 of the thermal food storage system 1. As was the case
above, sharp corners are eliminated to avoid injury.
[0043] FIG. 8 is a bottom edge view of an alternative preferred
embodiment of the thermal food storage system 1 in the closed
configuration. In this embodiment, a hinge 26 was selected which is
flush with the bottom surface of the thermal food storage system 1.
As a result, the hinge 26 will not inadvertently snag clothing,
etc. The seam 27 between the top 22 and the bottom 25 of the
thermal food storage system 1 is also shown.
[0044] FIG. 9 is a top edge view of an alternative preferred
embodiment of the thermal food storage system 1 in the closed
configuration. The locking mechanism 23 is illustrated on the top
edge. During transport, the thermal food storage system 1 remains
sealed to protect the contents. When the user desires to eat, the
device is unlocked via the locking mechanism 23 and opened.
[0045] FIG. 10 illustrates an alternative preferred embodiment of
the thermal food storage system 1 in the open configuration. In
this figure, a removable internal shelf 28 is shown which divides
the food compartment into two sections. This allows multiple food
types to be separately stored in the same container. Finger
apertures 30 allow the removable internal shelf 28 to be easily
removed if the user wishes to carry a larger item. Also illustrated
is a condiment container 29 which is used to store food items such
as grapes, ketchup, mustard, coleslaw, etc. Of course, multiple
condiment containers 29 could be used in place of the one
illustrated.
[0046] FIG. 11 illustrates an alternative preferred embodiment of
the thermal food storage system 1 in the open configuration with
the condiment container 29 removed. Also shown are ventilation
apertures 31 to allow airflow. Apertures 31 prevent some food items
from becoming soggy.
[0047] FIG. 12 illustrates an alternative preferred embodiment of
the thermal food storage system 1 in the open configuration with
the condiment container 29 and food storage shelf 28 removed. In
this configuration larger food items can be stored within the
thermal food storage system 1.
[0048] FIG. 13 is a top perspective view of a preferred embodiment
of the condiment container 29 with its lid 32 secured in place.
[0049] FIG. 14 is a top perspective view of a preferred embodiment
of the condiment container 29 with the lid 32 detached.
[0050] FIG. 15 is a front view of a preferred embodiment of the
removable internal shelf 28. Ventilation apertures 31 are shown. In
addition, elevation ridges 33 are also shown. Elevation ridges 33
provide an irregular surface that in combination with ventilation
apertures 31, allow airflow under food items to prevent them from
getting soggy.
[0051] FIG. 16 is an edge view of a preferred embodiment of the
removable internal shelf 28.
[0052] In all of the embodiments, it is envisioned that the
material used to fabricate the thermal food storage system 1 has
suitable thermal insulation properties to maintain, as long as
possible, the temperature of the food while stored within. The top
and bottom of the device are designed to seal to aide in maintained
internal temperature. Likewise, the internal storage shelf 28
divides the internal compartment into separate segments. As a
result, this provides an internal compartment that can also be used
to store a cooling device, such as commercially available "blue
ice" packages that are frozen prior to use. In addition, the unique
design of the internal shelf 28 also facilitates airflow to prevent
food from becoming soggy while stored.
[0053] While specific embodiments have been discussed to illustrate
the invention, it will be understood by those skilled in the art
that variations in the embodiments can be made without departing
from the spirit of the invention. For example, the material used to
fabricate the device can be any suitable material. The size and
shape of the device can vary, the size, shape, the number of food
containers can vary, and the number, size, and shape of food
partitions can vary, etc. Therefore, the invention shall be limited
solely by the scope of the claims.
* * * * *