EP0540873B1 - Refrigerator of forced air circulation type with an air duct provided with a shutter member - Google Patents
Refrigerator of forced air circulation type with an air duct provided with a shutter member Download PDFInfo
- Publication number
- EP0540873B1 EP0540873B1 EP92116590A EP92116590A EP0540873B1 EP 0540873 B1 EP0540873 B1 EP 0540873B1 EP 92116590 A EP92116590 A EP 92116590A EP 92116590 A EP92116590 A EP 92116590A EP 0540873 B1 EP0540873 B1 EP 0540873B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerator
- shutter member
- shutter
- box casing
- aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000014759 maintenance of location Effects 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
Definitions
- This invention relates to a refrigerator of forced air circulation type comprising an air duct opening via an aperture into a freezer or refrigeration compartment, said aperture being provided with a shutter member cooperating with drive means able to move the shutter member from a first to a second working position, and elastically loadable return means for returning the shutter member from said second to said first working position.
- the shutter member or shutter is used to close a corresponding duct when the temperature within the compartment, for example the refrigeration compartment, has reached a preset value.
- a usual thermostat provided in the compartment senses when the preset value has been reached and closes said duct by means of said shutter. After this, the cold air normally fed into the refrigeration compartment can no longer enter it, so that the temperature within this latter is not further reduced.
- the shutter is usually operated by two drive members (for example formed by usual resistors of positive or negative temperature coefficient fixed to opposing ends of the shutter and controlled in their operation by a usual electrical or electronic control circuit to which the thermostat is also connected.
- two drive members for example formed by usual resistors of positive or negative temperature coefficient fixed to opposing ends of the shutter and controlled in their operation by a usual electrical or electronic control circuit to which the thermostat is also connected.
- An object of the present invention is to provide a refrigerator of the aforesaid type which is of simple construction, short assembly and maintenance time and low cost.
- a further object is to provide a refrigerator of the aforesaid type which is much less liable to develop faults or problems than analogous known devices.
- a refrigerator of the aforesaid type characterised in that it comprises retention means able to cooperate with the shutter member for retaining it in its second working position.
- the retention means are able to be released by the drive means.
- the device of the invention is indicated overall by 1 and is positioned at a wall 2 of a compartment 3, for example the refrigeration compartment, of the cabinet 4 of a refrigerator 5 of forced air circulation type, a usual air circulation duct 8 opening at this wall via an aperture 7.
- a grille 11 On the aperture 7 of the duct 8 there is provided a grille 11 along which there can be positioned a shutter 12 movable along guides 13 fixed for example to said grille.
- the shutter 12 comprises a projection 15 which cooperates with a pusher member or pusher 16 which is separate from this projection and is operated in any known manner, for example by a resistor of positive or negative temperature coefficient (PTC or NTC), not shown, enclosed in a block 23 associated with the grille 12.
- PTC positive or negative temperature coefficient
- an arm 18 is provided projecting from the shutter 12.
- This arm comprises opposing projections or fins 19 having a rounded first side 20 and a straight second side 21 angularly connected to the first side 20 to hence define a substantially triangular fin.
- the shutter 12 is also preferably of grille formation with alternating full portions 12A and empty portions 12B reproducing the form of the grille 11.
- the projecting arm 18 cooperates with a retention member 25 associated with a fixed support 26 fixed for example to the grille 11.
- the retention member 25 comprises a box casing 27 within which a gripper element 28 comprising elastically movable arms 29 and extending from a body 30 moves inwardly and outwardly, one end 31 (projecting with said arms from the casing 27) of which cooperates with one end 18A of the projecting arm 18.
- the gripper element 28 moves within a cavity 33 in the casing 27 against a spring 34 the opposing ends of which are fixed to the casing 27 and to the element 28 respectively.
- the body 30 of this latter comprises a channel 37, formed about a pad 40, and within which (relatively speaking) there moves a pin 41 associated with an upper part 42 of the box casing 27 and able to move transversely in known manner relative to said part 42.
- the channel 37 and pad 40 are of such a shape that the pin, during its movement within said channel, can become locked at a recessed end 40A of the pad 40 to hence retain the gripper element 28 within the casing 27 when this element is pressed into this latter.
- the pin 41 is released from said end 40A.
- the pin is then guided within the channel 37 until it reaches an end-of-travel seat 48 in which the pin stops. When in this seat the gripper element 28 projects from the box casing 27.
- the shutter 12 slides along guides 13.
- Proximity sensors 51 such as microswitches, are associated with these shoulders, against which the shutter 12 rests when in its end-of-travel position.
- the sensors 51 are connected by an electrical connection to a control unit 54, advantageously of microprocessor type. To this latter there are also connected a usual thermostat 55 and the drive member for the pusher 16 housed in the block 23.
- the thermostat and the unit 54 are indicated only by way of example. During the use of the refrigerator 5 it will be assumed that the temperature within the compartment 3 reaches a set minimum value but that the shutter 12 has yet to close the aperture 7.
- thermostat 55 senses that the set temperature has been reached and feeds a signal V A to the unit 54.
- this latter enables the drive member associated with the pusher 16 (for example a known PTC) to act on this latter to move it towards the shutter 12.
- the drive member associated with the pusher 16 for example a known PTC
- the pusher 16 makes contact with the projection 15 to then act on it and move the shutter 12 along the guides 13.
- the end 17 of the shutter therefore approaches the member 25, with the shutter simultaneously closing the aperture 7 of the duct 8.
- the projecting arm 18 penetrates with its end 18A between the elastic arms 29 of the gripper element 28.
- the drive member presses against the shutter, which in its turn urges the body 30 into the casing 27.
- the sensors 51 sense this and feed a relative signal to the unit 54, which on the basis of this interrupts the action of the drive member on the pusher 16, hence halting the movement of the shutter.
- the pin 41 undergoes the described movement relative to said body 30.
- the pin moves into the recessed end 40A of the said pad 40 and halts said body in its inserted position in the box casing 27.
- the arms 29 are closed about the fins 19 of the projecting arm 18 by virtue of the cooperation between said arms and the walls of the cavity 33.
- the arm 18 urges the body 30 into the cavity 33 of the box casing 27, to release the pin 41 from the end 40A of the pad 40 in the described manner.
- the element 28 emerges from the box casing 27 to enable the arms 29 to diverge and release the fins 19 from the arm 18.
- the spring 34 also pushes the shutter 12 into a position such as to open the duct 8, ie to move the empty portions 12B of the shutter 12 into positions corresponding with those of the grille 11.
- Figure 4 shows a modified embodiment of the invention as an alternative to that described.
- this figure in which parts corresponding to those already described are indicated by the same reference numerals, there is no longer the element 28 associated with the box casing 27, but instead there are provided at least two parts 200 movable towards and away from each other by the action of small electromagnets 201 powered in known manner and arranged to cooperate with the fins 19 of the arm 18. At least one pair of such parts 200 is provided to retain the shutter 12 associated with the member 25 and maintain the duct 8 closed.
- a plurality of such pairs can be provided to retain the arm 18 of the shutter 12 inserted to a greater or lesser extent in the box casing 27. In this manner said shutter can be halted in different positions along the aperture 7, which can then be variously restricted.
- the springs 100 return the shutter 12 into the position in which it does not restrict the grille 11 when such restriction is no longer required.
- This embodiment operates in the following manner.
- the shutter is driven in the described manner against elastic elements provided along the guides 13.
- the electromagnets 201 act on metal projections 202 associated with the parts 200, to cause these latter to approach each other and close the arm 18 between them in the manner of jaws.
- the shutter 12 By operating suitably in cascade on a plurality of elements 200 (if present), the shutter 12 can be moved from a position in which it completely closes the aperture 7 to a position in which it partly closes it.
- the member 25 does not necessarily have to comprise the arms 29.
- the loading of the spring 34 enables this latter to return the shutter to a second working position (for example grille open) when the pusher acts on it the second time (in the manner already described).
- a second spring 270 acts on the end 14 of the shutter 12 to maintain it in contact with the member 25 when the shutter is in its first working position. This second spring, generating a force less than that of the spring 34, prevents undesirable grille movement due for example to vibration arising within the refrigerator during its use.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Air-Flow Control Members (AREA)
Description
- This invention relates to a refrigerator of forced air circulation type comprising an air duct opening via an aperture into a freezer or refrigeration compartment, said aperture being provided with a shutter member cooperating with drive means able to move the shutter member from a first to a second working position, and elastically loadable return means for returning the shutter member from said second to said first working position.
- The shutter member or shutter is used to close a corresponding duct when the temperature within the compartment, for example the refrigeration compartment, has reached a preset value. In this situation a usual thermostat provided in the compartment senses when the preset value has been reached and closes said duct by means of said shutter. After this, the cold air normally fed into the refrigeration compartment can no longer enter it, so that the temperature within this latter is not further reduced.
- The shutter is usually operated by two drive members (for example formed by usual resistors of positive or negative temperature coefficient fixed to opposing ends of the shutter and controlled in their operation by a usual electrical or electronic control circuit to which the thermostat is also connected.
- These drive members operate alternately, one closing the shutter and the other opening it.
- This method has however various drawbacks.
- In particular, the use of two drive members associated with the shutter negatively affects the refrigerator construction cost and its maintenance time.
- In addition, the control circuit which operates on these drive members is of complicated construction. US-A-3645108 discloses a refrigerator of the type mentioned at the beginning of the description. In this document the drive means are constituted by metal bellows containing a suitable vapour. This technical solution requires a complicated system for its calibration, which increases its cost.
- An object of the present invention is to provide a refrigerator of the aforesaid type which is of simple construction, short assembly and maintenance time and low cost.
- A further object is to provide a refrigerator of the aforesaid type which is much less liable to develop faults or problems than analogous known devices.
- These objects are attained by a refrigerator of the aforesaid type, characterised in that it comprises retention means able to cooperate with the shutter member for retaining it in its second working position.
- Preferably, the retention means are able to be released by the drive means. The present invention will be more apparent from the accompanying drawing, which is provided by way of non-limiting example and in which:
- Figure 1 is a schematic representation of the device according to the invention in one example of its application;
- Figure 2 is a perspective view of the device of Figure 1;
- Figure 3 is a cross-section through a part of the device of Figure 1; and
- Figure 4 is a modification of the device of Figure 1.
- With reference to Figures 1 to 3, the device of the invention is indicated overall by 1 and is positioned at a wall 2 of a
compartment 3, for example the refrigeration compartment, of the cabinet 4 of arefrigerator 5 of forced air circulation type, a usualair circulation duct 8 opening at this wall via an aperture 7. - On the aperture 7 of the
duct 8 there is provided a grille 11 along which there can be positioned ashutter 12 movable alongguides 13 fixed for example to said grille. - At one
end 14 theshutter 12 comprises aprojection 15 which cooperates with a pusher member orpusher 16 which is separate from this projection and is operated in any known manner, for example by a resistor of positive or negative temperature coefficient (PTC or NTC), not shown, enclosed in ablock 23 associated with thegrille 12. - At the
end 17 distant from saidend 14 anarm 18 is provided projecting from theshutter 12. This arm comprises opposing projections orfins 19 having a roundedfirst side 20 and a straightsecond side 21 angularly connected to thefirst side 20 to hence define a substantially triangular fin. - The
shutter 12 is also preferably of grille formation with alternatingfull portions 12A andempty portions 12B reproducing the form of the grille 11. - The projecting
arm 18 cooperates with aretention member 25 associated with afixed support 26 fixed for example to the grille 11. - The
retention member 25 comprises abox casing 27 within which agripper element 28 comprising elasticallymovable arms 29 and extending from abody 30 moves inwardly and outwardly, one end 31 (projecting with said arms from the casing 27) of which cooperates with oneend 18A of the projectingarm 18. - The
gripper element 28 moves within acavity 33 in thecasing 27 against aspring 34 the opposing ends of which are fixed to thecasing 27 and to theelement 28 respectively. - The
body 30 of this latter comprises achannel 37, formed about apad 40, and within which (relatively speaking) there moves apin 41 associated with anupper part 42 of thebox casing 27 and able to move transversely in known manner relative to saidpart 42. - The
channel 37 andpad 40 are of such a shape that the pin, during its movement within said channel, can become locked at arecessed end 40A of thepad 40 to hence retain thegripper element 28 within thecasing 27 when this element is pressed into this latter. On again pressing theelement 28 into thecasing 27 thepin 41 is released from saidend 40A. The pin is then guided within thechannel 37 until it reaches an end-of-travel seat 48 in which the pin stops. When in this seat thegripper element 28 projects from thebox casing 27. - As stated, the
shutter 12 slides alongguides 13. - At the end of this movement, namely when the shutter is close to the
retention member 25, the shutter comes into contact with theshoulders 50 provided on the grille 11. -
Proximity sensors 51, such as microswitches, are associated with these shoulders, against which theshutter 12 rests when in its end-of-travel position. - The
sensors 51 are connected by an electrical connection to acontrol unit 54, advantageously of microprocessor type. To this latter there are also connected ausual thermostat 55 and the drive member for thepusher 16 housed in theblock 23. The thermostat and theunit 54 are indicated only by way of example. During the use of therefrigerator 5 it will be assumed that the temperature within thecompartment 3 reaches a set minimum value but that theshutter 12 has yet to close the aperture 7. - In this situation the
thermostat 55 senses that the set temperature has been reached and feeds a signal VA to theunit 54. - On the basis of this signal this latter enables the drive member associated with the pusher 16 (for example a known PTC) to act on this latter to move it towards the
shutter 12. - The
pusher 16 makes contact with theprojection 15 to then act on it and move theshutter 12 along theguides 13. Theend 17 of the shutter therefore approaches themember 25, with the shutter simultaneously closing the aperture 7 of theduct 8. - During this movement, the projecting
arm 18 penetrates with itsend 18A between theelastic arms 29 of thegripper element 28. - When said
end 18A comes into contact with theend 31 of thebody 30 of saidelement 28, it causes this latter to retract into thebox casing 27. - Until the
shutter 12 reaches its end-of-travel position, ie in contact with thesensors 51, the drive member presses against the shutter, which in its turn urges thebody 30 into thecasing 27. - When the shutter has reached its travel limit, the
sensors 51 sense this and feed a relative signal to theunit 54, which on the basis of this interrupts the action of the drive member on thepusher 16, hence halting the movement of the shutter. - As the
body 30 withdraws into thebox casing 27, thepin 41 undergoes the described movement relative to saidbody 30. The pin moves into therecessed end 40A of the saidpad 40 and halts said body in its inserted position in thebox casing 27. In this position thearms 29 are closed about thefins 19 of the projectingarm 18 by virtue of the cooperation between said arms and the walls of thecavity 33. - As the drive member of the
pusher 16 is no longer powered, this retracts (at least partly) into theblock 23. The shutter however remains in the position in which it has closed the aperture 7, retained by theelement 28 acting on the projectingarm 18, and slightly separated from theshoulders 50. - In contrast, to open the
shutter 12 the drive member of thepusher 16 is again powered so that this latter again makes contact with theprojection 15, to press (a second time) theshutter 12 towards themember 28 until the shutter again makes contact with theshoulders 50. - In this manner, the
arm 18 urges thebody 30 into thecavity 33 of thebox casing 27, to release thepin 41 from theend 40A of thepad 40 in the described manner. - Then, on interrupting power to the drive member of the
pusher 16 when the shutter makes contact with theshoulders 50, theelement 28 emerges from thebox casing 27 to enable thearms 29 to diverge and release thefins 19 from thearm 18. In urging thebody 30 of theelement 28 out of thecavity 33, thespring 34 also pushes theshutter 12 into a position such as to open theduct 8, ie to move theempty portions 12B of theshutter 12 into positions corresponding with those of the grille 11. - Advantageously, further springs 100 (fixed to the grille 11 and acting on the shutter 12) positioned along the
guides 13 complement the action of thespring 34 and contribute to returning the shutter into the position in which it does not close the aperture 7. - Figure 4 shows a modified embodiment of the invention as an alternative to that described. In this figure (in which parts corresponding to those already described are indicated by the same reference numerals), there is no longer the
element 28 associated with thebox casing 27, but instead there are provided at least twoparts 200 movable towards and away from each other by the action ofsmall electromagnets 201 powered in known manner and arranged to cooperate with thefins 19 of thearm 18. At least one pair ofsuch parts 200 is provided to retain theshutter 12 associated with themember 25 and maintain theduct 8 closed. - Advantageously, a plurality of such pairs can be provided to retain the
arm 18 of theshutter 12 inserted to a greater or lesser extent in thebox casing 27. In this manner said shutter can be halted in different positions along the aperture 7, which can then be variously restricted. - The
springs 100 return theshutter 12 into the position in which it does not restrict the grille 11 when such restriction is no longer required. - This embodiment operates in the following manner.
- The shutter is driven in the described manner against elastic elements provided along the
guides 13. When thefins 19 of thearm 18 are within thebox casing 27, theelectromagnets 201 act on metal projections 202 associated with theparts 200, to cause these latter to approach each other and close thearm 18 between them in the manner of jaws. - On reversing the polarity of the electromagnetic field generated by the
electromagnets 201 to allow the elastic elements acting on theshutter 12 to operate, theparts 200 open and theshutter 12 returns to its rest position. - By operating suitably in cascade on a plurality of elements 200 (if present), the
shutter 12 can be moved from a position in which it completely closes the aperture 7 to a position in which it partly closes it. - Particular embodiments of the invention have been described.
- However further embodiments are therefore possible.
- In particular, the
member 25 does not necessarily have to comprise thearms 29. In this case, the loading of thespring 34 enables this latter to return the shutter to a second working position (for example grille open) when the pusher acts on it the second time (in the manner already described). In this case, advantageously a second spring 270 (see Figure 2) acts on theend 14 of theshutter 12 to maintain it in contact with themember 25 when the shutter is in its first working position. This second spring, generating a force less than that of thespring 34, prevents undesirable grille movement due for example to vibration arising within the refrigerator during its use.
Claims (11)
- An refrigerator of forced air circulation type, comprising an air duct (8) opening via an aperture (7) into a freezer or refrigeration compartment (3), said aperture being provided with a shutter member (12) cooperating with drive means (16, 23) able to move the shutter member (12) from a first to a second working position, and elastically loadable return means (34, 100) for returning the shutter member (12) from said second to said first working position, characterised in that it comprises retention means (28,29;200,201) able to cooperate with the shutter member (12) for retaining it in its second working position.
- A refrigerator as claimed in claimed 1, characterised in that the retention means (28,29;200,201) are able to be released by the drive means (16, 23).
- A refrigerator as claimed in claimed 1, characterised in that the drive means is a pusher (16) associated with a resistor of positive or negative temperature coefficient and acting on a part (15) associated with one end (14) of the shutter member (12).
- A refrigerator as claimed in claimed 1, characterised in that the return means comprise a body (30) movable within a fixed box casing (27) against elastic means (34), said body being able to assume at least two stationary positions relative to the box casing (27), with respect to which it moves.
- A refrigerator as claimed in claimed 4, characterised in that the retention means comprise a gripper element (28) having elastically movable arms (29) and extending from the body (30) of the return means movable within a cavity (33) in the box casing (27) against the elastic means (34), said arms (29) projecting from said box casing (27) and cooperating with a projecting part (18) of the shutter member comprising engagement means (19) for engaging said elastic arms.
- A refrigerator as claimed in claimed 5, characterised in that the engagement means of the projecting part (18) of the shutter member (12) are opposing fins (19) of substantially triangular shape.
- A refrigerator as claimed in claimed 3, characterised by comprising sensor means (51) for sensing at least when the shutter member attains the position in which it closes the aperture (7) of the air duct (8), i.e. when it attains one of its two working positions.
- A refrigerator as claimed in claimed 7, characterised in that the sensor means are microswitches (51) arranged on shoulders (50) provided in a position corresponding with the retention means (28,29).
- A refrigerator as claimed in claimed 8, characterised in that the microswitches (51) are connected to a control unit connected to a thermostat (55) situated in the compartment (3) into which the duct (8) opens, said unit powering the resistor of positive or negative temperature coefficient.
- A refrigerator as claimed in claimed 1, characterised in that the retention means are at least one pair of parts (200) mutually movable towards and away from each other and arranged to move orthogonally to a projecting part (18) of the shutter member (12), said movable parts being moved by electromagnets (201).
- A refrigerator as claimed in claimed 10, characterised by comprising a plurality of pairs of mutually movable parts (200) operating sequentially with and/or independently of each other, to obtain different degrees of closure of the air duct (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI912979A IT1251782B (en) | 1991-11-08 | 1991-11-08 | ACTUATOR DEVICE FOR THE MOVEMENT OF AN INTERCEPTION BODY OF AN AIR DUCT IN AN AIR-CIRCULATION TYPE REFRIGERATOR |
ITMI912979 | 1991-11-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0540873A2 EP0540873A2 (en) | 1993-05-12 |
EP0540873A3 EP0540873A3 (en) | 1993-11-24 |
EP0540873B1 true EP0540873B1 (en) | 1996-05-08 |
Family
ID=11361057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92116590A Expired - Lifetime EP0540873B1 (en) | 1991-11-08 | 1992-09-29 | Refrigerator of forced air circulation type with an air duct provided with a shutter member |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0540873B1 (en) |
DE (1) | DE69210541T2 (en) |
ES (1) | ES2092609T3 (en) |
IT (1) | IT1251782B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19806041A1 (en) * | 1998-02-13 | 1999-08-19 | Bosch Siemens Hausgeraete | Food storage containers |
KR101542962B1 (en) * | 2013-09-09 | 2015-08-10 | 현대자동차 주식회사 | Active air flap of vehicle |
EP3191776A1 (en) * | 2014-09-11 | 2017-07-19 | Arçelik Anonim Sirketi | A refrigerator comprising a humidity and temperature controlled compartment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3645108A (en) * | 1970-06-01 | 1972-02-29 | Ranco Inc | Air damper control for refrigerators |
GB8410927D0 (en) * | 1984-04-27 | 1984-06-06 | Dixon International Ltd | Ventilator |
-
1991
- 1991-11-08 IT ITMI912979A patent/IT1251782B/en active IP Right Grant
-
1992
- 1992-09-29 DE DE69210541T patent/DE69210541T2/en not_active Expired - Fee Related
- 1992-09-29 ES ES92116590T patent/ES2092609T3/en not_active Expired - Lifetime
- 1992-09-29 EP EP92116590A patent/EP0540873B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ITMI912979A1 (en) | 1993-05-08 |
ITMI912979A0 (en) | 1991-11-08 |
ES2092609T3 (en) | 1996-12-01 |
EP0540873A2 (en) | 1993-05-12 |
EP0540873A3 (en) | 1993-11-24 |
IT1251782B (en) | 1995-05-24 |
DE69210541T2 (en) | 1996-11-28 |
DE69210541D1 (en) | 1996-06-13 |
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