IES84947Y1 - A double wall beverage container - Google Patents
A double wall beverage containerInfo
- Publication number
- IES84947Y1 IES84947Y1 IE2007/0185A IE20070185A IES84947Y1 IE S84947 Y1 IES84947 Y1 IE S84947Y1 IE 2007/0185 A IE2007/0185 A IE 2007/0185A IE 20070185 A IE20070185 A IE 20070185A IE S84947 Y1 IES84947 Y1 IE S84947Y1
- Authority
- IE
- Ireland
- Prior art keywords
- sidewall
- sleeve
- container
- circumferential region
- double wall
- Prior art date
Links
- 235000013361 beverage Nutrition 0.000 title 1
- 235000012171 hot beverage Nutrition 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive Effects 0.000 description 4
- 101700037716 MTMR9 Proteins 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000000088 Lip Anatomy 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
Abstract
ABSTRACT This invention relates to a double wall container for a hot beverage, such as a double wall paper cup.
Description
A Double Wall Beverage Container
This invention relates to a double wall container for a
hot beverage, such as a double wall paper cup.
Referring to FIGS 1 to 3, a known double wall paper cup
for hot beverages (EP1227043Al) comprises an inner cup 10
of conventional construction having a base 12, a circular
sidewall 14 in the form of a truncated cone with a slight
downward taper, An outwardly
and an open top 16.
displaced circumferential shoulder 18 at the top of the
cup stands slightly proud of the main body of the
sidewall 14, and terminates in an outwardly turned upper
lip 20.
An outer truncated conical sleeve 22 surrounds the
sidewall 14, the cup 10 being slid into the pre-formed
sleeve 22 (FIG 2). The sleeve 22 covers substantially
the entire sidewall 18 and has a circumferential inwardly
turned lower edge 24. The sleeve 22 is dimensioned such
that an upper circumferential region 26 of the sleeve
engages snugly around the shoulder 18 of the cup just
below the lip 20, while the inwardly turned lower edge 24
of the sleeve engages snugly around a circumferential
region of the sidewall 14 adjacent the base 12. A band
of adhesive 28 secures the upper circumferential region
of the sleeve to the shoulder 18.
The shoulder 18 and the inwardly turned edge 24 of the
sleeve 22 define an air gap 30 between the sidewall 14
and the sleeve 22, the air gap forming a thermal barrier
to heat to protect a person's hand holding the container.
A disadvantage of this known container is that special
heating and bending equipment is necessary to form the
inwardly turned lower edge 24 of the sleeve. Also,
the sleeve 22 is squeezed, as indicated by the horizontal
when
arrows in FIG 3, the air in the gap 30 can escape from
between the edge 24 and the sidewall 14, allowing the
sleeve 22 to come into contact with the sidewall 14 and
allowing substantial heat transfer to the sleeve.
It is an object of the invention to provide a container
for a hot beverage in which these disadvantages are
avoided or mitigated.
According to the present invention there is provided a
double wall container for a hot beverage comprising an
inner cup having a base, a sidewall and an open top, and
an outer sleeve surrounding the sidewall, wherein the
sleeve has upper and lower circumferential regions
continuously sealed around upper and lower
circumferential regions respectively of the sidewall, and
wherein at least the lower circumferential region of the
sidewall stands proud of the main body of the sidewall so
that between its upper and lower circumferential regions
the sleeve is spaced from the sidewall with the air
sealed in the gap between the two.
Embodiments of the invention will now be described, by
way of example, with reference to the accompanying
drawings, in which:
FIG 1 (previously described) is a perspective view of a
known container for hot beverages.
FIG 2 (previously described) is a perspective view of the
component parts of the container of FIG 1.
FIG 3 (previously described) is a cross—sectional view
through one side of the container of FIG 1, the entire
side of the container being shown on the left of FIG 3
and the top and bottom being shown to a larger scale on
the right of FIG 3.
FIGS 4 to 6 are views equivalent to FIGS 1 to 3
respectively of a container according to a first
embodiment of the invention.
FIG 7 is a view similar to FIG 6 of a second embodiment
of the invention.
In many respects the embodiments of cup according to the
invention have many of the same features as the known cup
of FIGS 1 to 3. Accordingly, the same reference numerals
will be used for the same or equivalent features and only
the differences between the embodiments and the known cup
will be described.
Referring now to FIGS 4 to 6, in the cup according to a
first embodiment of the invention the inwardly turned
lower edge 24 of the sleeve 22 has been omitted.
Instead, near the base 12 an outwardly embossed annular
region 32 is formed around the circumference of the
sidewall 14 so as to stand, like the shoulder 18,
slightly proud of the main body of the sidewall 14. The
sleeve 22 is dimensioned such that as well as the upper
circumferential region 26 of the sleeve engaging snugly
around the shoulder 18, a circumferential region 34 at
the bottom of the sidewall 14 engages snugly around the
annular region 32. This creates an air gap 30 between
the sleeve 22 and sidewall 14 as before, but does not
require an inwardly turned edge at the bottom of the
sleeve.
A band of adhesive 36 secures the circumferential region
34 to the annular region 36 and since this band of
adhesive is, like the band 28,
continuous around the
inner cup, the air is hermetically sealed in the gap 30.
Thus when the sleeve 22 is squeezed, the sidewall 14 will
tend to move inwardly, avoiding Contact between the two
and preventing heat transfer to a person's hand.
The inner cup 10 and outer sleeve 22 can be made of any
suitable material such as a standard box board material
or PE coated cardboard. In the former case a standard
glue can be used for the adhesive bands 28 and 36,
applied by glue guns while the cup is rotated. In the
latter case ultrasonic bonding can be used.
In a second embodiment, FIG 7, the upper end 18’ of the
sidewall 14, around which the circumferential region 26
of the sleeve 22 is sealed, is not displaced outwardly to
form a shoulder. In this embodiment, therefore, the
width of the air gap 30, which is substantially constant
in the first embodiment, tapers in the upward direction.
To allow a good circumferential seal between the upper
end of the sleeve 22 and the upper end 18’ of the
sidewall 14, the upper end 18' of the sidewall has no
taper, or less of a taper, than the main body of the
sidewall.
In a modification of the above embodiments, not shown,
the raised annular region 32 is not formed on the
sidewall 14. Instead, a separate band of the cup
material is glued continuously around the sidewall 14
where the region 32 would have been. Then, the sleeve 22
is glued to the shoulder 18 and band in the same way as
it is glued to the shoulder 18 and annular region 32 in
the described embodiment.
The invention is not limited to the embodiments described
herein which may be modified or varied without departing
from the scope of the invention.
Claims (5)
1. A double wall container for a hot beverage comprising an inner cup having a base, a sidewall and an open top, and an outer sleeve surrounding the sidewall, wherein the sleeve has upper and lower circumferential regions continuously sealed around upper and lower circumferential regions respectively of the sidewall, and wherein at least the lower circumferential region of the sidewall stands proud of the main body of the sidewall so that between its upper and lower circumferential regions the sleeve is spaced from the sidewall with the air sealed in the gap between the two.
2. A Container as claimed in claim 1, wherein the lower circumferential region of the sidewall comprises an outwardly embossed annular region of the sidewall.
3. A container as claimed in claim 1, wherein the upper circumferential region of the sidewall also stands proud of the main body of the sidewall and, optionally, wherein the upper circumferential region of the sidewall comprises an outwardly displaced shoulder at the top of the sidewall.
4. A container as claimed in claim 1 or 2, wherein the sidewall comprises a truncated cone with a slight downward taper, and wherein the upper circumferential region of the sidewall comprises an upper portion of the sidewall having no taper or less of a taper than the main body of the sidewall.
5. A container as claimed in any preceding claim, wherein the sleeve covers substantially the entire sidewall.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IEIRELAND17/02/2006S2006/0117 |
Publications (1)
Publication Number | Publication Date |
---|---|
IES84947Y1 true IES84947Y1 (en) | 2008-08-20 |
Family
ID=
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