(19) |
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(11) |
EP 1 559 977 A2 |
(12) |
EUROPEAN PATENT APPLICATION |
(43) |
Date of publication: |
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03.08.2005 Bulletin 2005/31 |
(22) |
Date of filing: 24.01.2005 |
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(51) |
International Patent Classification (IPC)7: F25D 23/08 |
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(84) |
Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI
SK TR |
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Designated Extension States: |
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AL BA HR LV MK YU |
(30) |
Priority: |
28.01.2004 IT MI20040031 U
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(71) |
Applicant: WHIRLPOOL CORPORATION |
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Benton Harbor
Michigan 49022 (US) |
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(72) |
Inventors: |
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- Oldani, Edoardo,
Patent Dept.
21025, Comerio (IT)
- Comai, Andrea,
Patent Dept.
21025, Comerio (IT)
- Gianardoli, Michele,
Patent Dept.
21025, Comerio (IT)
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(74) |
Representative: Guerci, Alessandro |
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Whirlpool Europe S.r.l.
Patent Department
Viale G. Borghi 27 21025 Comerio (VA) 21025 Comerio (VA) (IT) |
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(54) |
Easily opened door for upright freezers |
(57) An easily opened freezer or refrigerator door (1) presenting an endless gasket (6)
incorporating magnetic means (7), and presenting rigid therewith on its inner side,
in correspondence with a small region of the endless gasket (6), a rigid means (2,
2a, 2b) which on opening the door operates on a part (5) of the gasket (6) such as
to at least partly prevent it from deforming and hence open a passageway for compensating
the pressure difference between the interior and exterior of the freezer (Figure 2).
|

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[0001] The present invention relates to a freezer or refrigerator door presenting an endless
seal gasket incorporating preferably strip-like magnetic means.
[0002] In opening a refrigerator or freezer door, particularly that of an upright freezer,
a certain force is required to overcome not only the magnetic attraction force of
the gasket together with any resistance due to ice formation, but also the opposing
pressure difference between the interior compartment, which is cold (and hence under
slight vacuum), and the external environment at atmospheric pressure.
[0003] An object of the present invention is to facilitate refrigerator or freezer door
opening by the use of simple means which during the initial stage of door opening
compensate the opposing pressure difference.
[0004] This and further objects which will be apparent from the ensuing detailed description
are attained by a refrigerator or freezer door in accordance with the teachings of
the accompanying claims.
[0005] The invention will be more apparent from the following detailed description, which
is provided by way of example with reference to the accompanying drawing, in which:
Figure 1 is a schematic perspective view of part of an upright freezer or refrigerator
door, seen on its inner side;
Figure 2 is a schematic section on the line II-II of Figure 1.
[0006] In the figures, the reference numeral 1 indicates overall an upright freezer or refrigerator
door of substantially traditional construction except, according to the invention,
for a piece of L-shaped profile bar indicated by 2, which projects from the inner
side of the door structure and, by means of a part (not visible) of one of its flanges
2a, 2b representing the L shape, is fixed to the structure itself, with which it is
hence rigid.
[0007] As already stated, only a piece of profile bar is used, it hence involving a relatively
short length of one side of the door, namely that side corresponding to the free side
(opposite the hinged side) of the door and preferably located in a position corresponding
with the door handle (not shown).
[0008] As can be best seen in the view of Figure 2, which also shows part of the cabinet
4 of the freezer or refrigerator with which the door 1 cooperates, the flange 2b of
the bar piece 2 is located below the main chamber 5 of a conventional gasket 6 fixed
to the door and incorporating the conventional permanent strip magnet 7.
[0009] On opening the door (arrow F) the flange 2b of the profile bar 2 prevents the gasket
chamber from stretching and enables a passageway to form to connect the freezing or
preservation compartment 9 of the freezer or refrigerator to the external environment
10, to balance the pressure and hence reduce the force opposing the opening of the
door, it being necessary to overcome only the magnetic attraction and the resistance
of any ice which has formed.
1. An easily opened freezer or refrigerator door (1) presenting an endless gasket (6)
incorporating magnetic means (7), characterised by presenting rigid therewith on its inner side, in correspondence with a small region
of the endless gasket (6), a rigid means (2, 2a, 2b) which on opening the door operates
on a part (5) of the gasket (6) such as to at least partly prevent it from deforming
and hence open a passageway for compensating the pressure difference between the interior
and exterior of the freezer.
2. A door as claimed in claim 1, wherein the rigid means (2, 2a, 2b) is a piece of L-shaped
profile bar, one flange (2a) of which serves to fix the piece of bar to the door,
while the other flange (2b) operates on the part (5) of the gasket (6).
3. A door as claimed in the preceding claims, wherein the piece of bar (2) is located
in a position corresponding with the door handle.