CA2287728A1 - Refrigerator door venting arrangement - Google Patents
Refrigerator door venting arrangement Download PDFInfo
- Publication number
- CA2287728A1 CA2287728A1 CA 2287728 CA2287728A CA2287728A1 CA 2287728 A1 CA2287728 A1 CA 2287728A1 CA 2287728 CA2287728 CA 2287728 CA 2287728 A CA2287728 A CA 2287728A CA 2287728 A1 CA2287728 A1 CA 2287728A1
- Authority
- CA
- Canada
- Prior art keywords
- door
- recessed
- dyke
- liner
- vent
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
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- 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
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
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- 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
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/062—Walls defining a cabinet
- F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
Abstract
A refrigerator door has venting tubes positioned between an outer metal panel and recessed dyke walls or side walls of an interior plastic liner of the door. The venting tubes extend along one of the dyke walls from a recessed portion of the interior liner to an edge flange corner of the door liner adjacent the outer metal panel. The edge corner of the liner has a cut-out vent opening which is adapted to lie over an in-turned flange of the outer metal door panel. This venting arrangement allows foam to readily extend into the corner recesses of the plastic liner because the vent tubes permit pockets of gas and air to escape from this corner region during the foaming step. The placement of the vent opening between the cut-out edge flange and outer metal door panel is easily hidden from view by a covering door sealing gasket.
Description
REFRIGERATOR DOOR VENTING ARRANGEMENT
Technical Field of the Invention The present invention relates to a refrigerator door appliance and in particular the use of a vent passage within the door for venting gases and air otherwise trapped in the door during foaming of insulation into the door.
Background of the Invention In the construction of a refrigerator door, it is common practice to secure a plastic inner door liner to an outer metal door panel. The outer metal door panel is formed as a box-like container having a front panel wall with top, bottom and side walls. These walls have in-turned flanges extending substantially parallel to the front panel of the refrigerator outer panel. The liner is usually a plastic material having a generally flat centralized portion which is spaced from and parallel to the outer door front panel wall to define a cavity therebetween. The liner typically includes a recessed dyke or side walls which extend rearwardly away from the front panel and have peripheral side flanges which are secured to the peripheral in-turned flanges of the outer panel. The dyke side walls are adapted to extend into the refrigerator cabinet. The side walls of the liners typically support refrigerator shelving on the inner door.
Technical Field of the Invention The present invention relates to a refrigerator door appliance and in particular the use of a vent passage within the door for venting gases and air otherwise trapped in the door during foaming of insulation into the door.
Background of the Invention In the construction of a refrigerator door, it is common practice to secure a plastic inner door liner to an outer metal door panel. The outer metal door panel is formed as a box-like container having a front panel wall with top, bottom and side walls. These walls have in-turned flanges extending substantially parallel to the front panel of the refrigerator outer panel. The liner is usually a plastic material having a generally flat centralized portion which is spaced from and parallel to the outer door front panel wall to define a cavity therebetween. The liner typically includes a recessed dyke or side walls which extend rearwardly away from the front panel and have peripheral side flanges which are secured to the peripheral in-turned flanges of the outer panel. The dyke side walls are adapted to extend into the refrigerator cabinet. The side walls of the liners typically support refrigerator shelving on the inner door.
-2- CWC- 159 To rigidize and thermally insulate the refrigerator door, foam is injected into the refrigerator door. As the foam expands it fills the cavity to rigidize and thermally insulate the door. During the foaming process, however, gases are generated as a result of the foam curing. These gases, together with the air already in the door cavity, must be vented out of the door cavity to prevent gas pockets from forming in the cavity. These gas pockets prevent the even distribution of the foam in the door cavity. In particular, problem areas of gas pocket formation occur at the corners of the door cavity preventing the foam from reaching these locations.
To allow the foam to expand into areas where the gas pockets would normally form, it has been common practice to provide openings in the outer door panel along top, bottom or side walls of the outer door panel. These openings are covered with a vent tape. The vent tape permits gasses to pass through the vent tape and the vent opening and prevents the foam from passing through the vent tape and out the vent opening. However the problem with this venting arrangement is that the vent openings are difficult to hide from view adversely effecting the appearance of the door.
While the use of vent openings in the periphery top, bottom or side walls of the outer door panel permits satisfactory venting at the corners of the cavity adjacent the outer door panel, this has not assisted in the venting of gas pockets formed in the recessed corners of the dyke side walls of the plastic inner liner of the door. As a result, the recessed dyke wall corners are not properly reinforced nor thermally insulated with the foam insulation. Furthermore, the placement of vent openings in the plastic liner adjacent these recessed dyke corners have not been acceptable since the vent openings reduce the structural integrity of the
To allow the foam to expand into areas where the gas pockets would normally form, it has been common practice to provide openings in the outer door panel along top, bottom or side walls of the outer door panel. These openings are covered with a vent tape. The vent tape permits gasses to pass through the vent tape and the vent opening and prevents the foam from passing through the vent tape and out the vent opening. However the problem with this venting arrangement is that the vent openings are difficult to hide from view adversely effecting the appearance of the door.
While the use of vent openings in the periphery top, bottom or side walls of the outer door panel permits satisfactory venting at the corners of the cavity adjacent the outer door panel, this has not assisted in the venting of gas pockets formed in the recessed corners of the dyke side walls of the plastic inner liner of the door. As a result, the recessed dyke wall corners are not properly reinforced nor thermally insulated with the foam insulation. Furthermore, the placement of vent openings in the plastic liner adjacent these recessed dyke corners have not been acceptable since the vent openings reduce the structural integrity of the
- 3 - CWC - 159 plastic liner and provides a vent opening which cannot be easily covered and hidden from view.
Clearly, there is a need to improve the foam in place insulation used in refrigerator doors such that the corners of the dykes of the inner plastic liner of the door are adequately reinforced and thermally insulated.
SUMMARY OF THE INVENTION
The present invention relates to a refrigerator type appliance and in particular to a door for a refrigerator type appliance. The present invention utilizes a vent passage that extends from deep within the recessed side walls or dyke walls of the plastic liner of a refrigerator door to a vent opening located in the door of the refrigerator. By using such a vent passage, vent gasses generated during door foaming which have a tendency to accumulate at the corners of the recessed dyke, are channeled through the passage to the vent opening in the door. As a result, the thermally insulating and rigidizing foam is permitted to expand unencumbered by the vent gases into the recessed corners of the dyke side walls.
The vent passage may be constructed placing a covering over one of the side walls of the recessed dyke of the door liner and together with this one wall forming the vent passage. In the preferred embodiment the vent passage is a tube that is secured to the outer side wall of the recessed dyke walls of the plastic liner. The tube extends from a vent opening in the door that is preferably located between a cut-out edge of the plastic liner and the outer door panel. The cut-out edge is readily covered by use of a sealing gasket surrounding the door. The tube preferably extends into the recessed opening or side walls of the door
Clearly, there is a need to improve the foam in place insulation used in refrigerator doors such that the corners of the dykes of the inner plastic liner of the door are adequately reinforced and thermally insulated.
SUMMARY OF THE INVENTION
The present invention relates to a refrigerator type appliance and in particular to a door for a refrigerator type appliance. The present invention utilizes a vent passage that extends from deep within the recessed side walls or dyke walls of the plastic liner of a refrigerator door to a vent opening located in the door of the refrigerator. By using such a vent passage, vent gasses generated during door foaming which have a tendency to accumulate at the corners of the recessed dyke, are channeled through the passage to the vent opening in the door. As a result, the thermally insulating and rigidizing foam is permitted to expand unencumbered by the vent gases into the recessed corners of the dyke side walls.
The vent passage may be constructed placing a covering over one of the side walls of the recessed dyke of the door liner and together with this one wall forming the vent passage. In the preferred embodiment the vent passage is a tube that is secured to the outer side wall of the recessed dyke walls of the plastic liner. The tube extends from a vent opening in the door that is preferably located between a cut-out edge of the plastic liner and the outer door panel. The cut-out edge is readily covered by use of a sealing gasket surrounding the door. The tube preferably extends into the recessed opening or side walls of the door
-4- CWC- 159 liner adjacent to an intermediate wall that interconnects the side walls of the recessed dyke. It should be understood that the inner and outer side walls of the recessed dyke may be formed by a simple curvature in the plastic material located between these side walls so that the side walls take the general form of a V shape and thereby eliminate the requirement for an intermediate wall.
The vent tubes are preferably located in each of the four corners of the plastic liner so as to allow gasses to escape through the tube and out the vent opening. The tubes are secured in place preferably by means of an adhesive tape overlapping the tube and the outer side wall of the dyke openings.
The vent tubes may either be of a collapsible plastic straw like material which allows the tube to collapse as the gas is exhausted from the corners of the recessed dykes of the liner. Alternatively, as the gasses are escaping, the foam expands into the tubes. In this instance, the tubes are formed of thicker plastic or alternatively, a metal.
Preferably the tube is contoured to follow the outer side wall of the recessed dyke and curve adjacent the vent opening. This curvature retards the escape of foam through the vent tube while still permitting the escape flow of vent gases through the tube. It is further envisaged that the vent tube opening may be a diverging passageway or may include caps with vent openings which allow the escape of gasses and do not allow the escape of foam insulation.
It should be understood that this refrigerator door may be a freezer door used in a freezer cabinet or a door used to close a freezer compartment or refrigerator compartment in a refrigerator. While reference is made to a refrigerator door, this invention has application for
The vent tubes are preferably located in each of the four corners of the plastic liner so as to allow gasses to escape through the tube and out the vent opening. The tubes are secured in place preferably by means of an adhesive tape overlapping the tube and the outer side wall of the dyke openings.
The vent tubes may either be of a collapsible plastic straw like material which allows the tube to collapse as the gas is exhausted from the corners of the recessed dykes of the liner. Alternatively, as the gasses are escaping, the foam expands into the tubes. In this instance, the tubes are formed of thicker plastic or alternatively, a metal.
Preferably the tube is contoured to follow the outer side wall of the recessed dyke and curve adjacent the vent opening. This curvature retards the escape of foam through the vent tube while still permitting the escape flow of vent gases through the tube. It is further envisaged that the vent tube opening may be a diverging passageway or may include caps with vent openings which allow the escape of gasses and do not allow the escape of foam insulation.
It should be understood that this refrigerator door may be a freezer door used in a freezer cabinet or a door used to close a freezer compartment or refrigerator compartment in a refrigerator. While reference is made to a refrigerator door, this invention has application for
-5- CWC-159 thermally insulated doors where venting of foaming generated gasses is required.
In accordance with one aspect of the present invention there is provided a door for a refrigerator type appliance comprising an outer door panel and an inner door liner secured to the outer door panel. The door liner comprises a central liner portion spaced from the outer door panel to define a cavity. The door liner comprises a recessed dyke surrounding the central liner portion. The recessed dyke has inner and outer walls defining a recessed space therebetween that is located further away from the outer door panel than the central liner. The inner walls of the dyke extend away from the central liner and the outer walls of the dyke extend toward the outer door panel. Foam insulation is located between the inner door liner and the outer door panel. The insulation extends into the cavity and recessed space defined by the inner and outer walls of the recessed dyke. The refrigerator door includes at least one vent opening located in the door and at least one vent passage extending from within the recessed space to the vent opening permitting the flow of gasses and air therethrough from the recessed space during foaming of the foam insulation to permit the foam substantially fills the cavity and the recessed space.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the nature and objects of the present invention reference may be had to the following detailed description when taken in conjunction with the accompanying diagrammatic drawings wherein:
In accordance with one aspect of the present invention there is provided a door for a refrigerator type appliance comprising an outer door panel and an inner door liner secured to the outer door panel. The door liner comprises a central liner portion spaced from the outer door panel to define a cavity. The door liner comprises a recessed dyke surrounding the central liner portion. The recessed dyke has inner and outer walls defining a recessed space therebetween that is located further away from the outer door panel than the central liner. The inner walls of the dyke extend away from the central liner and the outer walls of the dyke extend toward the outer door panel. Foam insulation is located between the inner door liner and the outer door panel. The insulation extends into the cavity and recessed space defined by the inner and outer walls of the recessed dyke. The refrigerator door includes at least one vent opening located in the door and at least one vent passage extending from within the recessed space to the vent opening permitting the flow of gasses and air therethrough from the recessed space during foaming of the foam insulation to permit the foam substantially fills the cavity and the recessed space.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the nature and objects of the present invention reference may be had to the following detailed description when taken in conjunction with the accompanying diagrammatic drawings wherein:
-6- CWC- 159 Figure 1 is a perspective view of a top mount refrigerator appliance having top and bottom doors constructed in accordance with the present invention;
Figure 2 is a sectional view taken at lines 2-2 of Figure 1 showing the construction for a refrigerator door;
Figure 3 is a perspective view showing the inside of the door liner wall with the surrounding recessed dyke walls;
Figure 4 is an enlarged corner view showing the vent tube construction of the present invention;
Figures 5 is a view showing the vent tube of the present invention, Figure 6 is a side sectional view of the door liner shown in Figure 3; and;
Figure 7 is an enlarged side sectional view showing the vent tube arrangement of the present invention in one of the top corners of the refrigerator door liner.
DETAILED DESCRIPTION OF EMBODIMENTS
Referring to Figure 1 there is shown a refrigerator 10 comprising a cabinet 12, a top door 14 and a lower door 16. Each of doors 14 and 16 are shown in a closed position. The top door 14 is typically adapted to close the freezer food compartment 18 and the lower door 16 typically closes the fresh food compartment 20. Of course it is understood that the position of the freezer compartment 18 relative to the fresh food compartment 20 could be reversed as in a bottom mount refrigerator or, alternatively, the invention has application in side-by-side refrigerator doors. However, in accordance with the present invention, the preferred refrigerator construction is that shown having doors 14 and 16 respectively closing the upper and lower food compartments 18 and 20.
Figure 2 is a sectional view taken at lines 2-2 of Figure 1 showing the construction for a refrigerator door;
Figure 3 is a perspective view showing the inside of the door liner wall with the surrounding recessed dyke walls;
Figure 4 is an enlarged corner view showing the vent tube construction of the present invention;
Figures 5 is a view showing the vent tube of the present invention, Figure 6 is a side sectional view of the door liner shown in Figure 3; and;
Figure 7 is an enlarged side sectional view showing the vent tube arrangement of the present invention in one of the top corners of the refrigerator door liner.
DETAILED DESCRIPTION OF EMBODIMENTS
Referring to Figure 1 there is shown a refrigerator 10 comprising a cabinet 12, a top door 14 and a lower door 16. Each of doors 14 and 16 are shown in a closed position. The top door 14 is typically adapted to close the freezer food compartment 18 and the lower door 16 typically closes the fresh food compartment 20. Of course it is understood that the position of the freezer compartment 18 relative to the fresh food compartment 20 could be reversed as in a bottom mount refrigerator or, alternatively, the invention has application in side-by-side refrigerator doors. However, in accordance with the present invention, the preferred refrigerator construction is that shown having doors 14 and 16 respectively closing the upper and lower food compartments 18 and 20.
-7- CWC- 159 Each of the doors 14 and 16 includes the venting arrangement of the present invention described in more detail hereinafter.
In Figures 2 and 3 the preferred construction of door 16 is shown.
Door 16 has an outer metal door panel 22. Door panel 22 has a generally flat sheet 24 with upstanding or rearwardly extending side walls 26. Side walls 26 terminate at in-turned flanges 28. Flanges 28 extend generally parallel to the flat sheet 24.
Mounted on top of the in-turned flanges 28 of the door panel 22 is a unipartite inner door liner 30 of plastic material. Liner 30 has a central liner portion 32 spaced from the generally flat sheet 24 of the outer door panel 22 to define a cavity 133. The central liner portion 32 has a peripheral border region 34 which is surrounded by a recessed dyke generally shown at 3 6.
The recessed dyke 36 has a first inner wall 38 extending rearwardly or outwardly of the central liner portion 32 to an intermediate wall 40. The first inner wall 38 of the recessed dyke 36 includes integrally moulded shelf supports 41. The shelf supports 41 carry shelves 43 which in turn carry articles (not shown). The recessed dyke 36 includes a second outer wall 42 extending from intermediate wall portion 36 to a peripheral edge or flange 44 secured by suitable means with the in-turned flanges 28 of the outer door panel 22. Mounted over the liner flange 44 and door panel flange 28 is a gasket 47 which seals the door in an airtight fashion with the refrigerator appliance 10. It should be understood that the dyke inner and outer walls 36 and 42 extend in a generally rectangular fashion about the rectangular central portion 32 of the liner 30 and that the shelf supports 41 are located on the vertically extending first inner wall 38 of the dyke 36. The inner and
In Figures 2 and 3 the preferred construction of door 16 is shown.
Door 16 has an outer metal door panel 22. Door panel 22 has a generally flat sheet 24 with upstanding or rearwardly extending side walls 26. Side walls 26 terminate at in-turned flanges 28. Flanges 28 extend generally parallel to the flat sheet 24.
Mounted on top of the in-turned flanges 28 of the door panel 22 is a unipartite inner door liner 30 of plastic material. Liner 30 has a central liner portion 32 spaced from the generally flat sheet 24 of the outer door panel 22 to define a cavity 133. The central liner portion 32 has a peripheral border region 34 which is surrounded by a recessed dyke generally shown at 3 6.
The recessed dyke 36 has a first inner wall 38 extending rearwardly or outwardly of the central liner portion 32 to an intermediate wall 40. The first inner wall 38 of the recessed dyke 36 includes integrally moulded shelf supports 41. The shelf supports 41 carry shelves 43 which in turn carry articles (not shown). The recessed dyke 36 includes a second outer wall 42 extending from intermediate wall portion 36 to a peripheral edge or flange 44 secured by suitable means with the in-turned flanges 28 of the outer door panel 22. Mounted over the liner flange 44 and door panel flange 28 is a gasket 47 which seals the door in an airtight fashion with the refrigerator appliance 10. It should be understood that the dyke inner and outer walls 36 and 42 extend in a generally rectangular fashion about the rectangular central portion 32 of the liner 30 and that the shelf supports 41 are located on the vertically extending first inner wall 38 of the dyke 36. The inner and
-8- CWC- 159 outer dyke walls 38 and 42 define a recessed dyke space 142 between these walls that is more rearward than the cavity space 133 from the flat sheet outer wall 24 of door panel 22.
In the preferred liner 30 construction, the central liner portion 32 is generally flat and includes a vertically and rearwardly extending central ridge 33 having opposed flexible side walls 35. Side walls 35 carry shelf supports 41 for supporting shelves 43. The side walls 35 are flexible to allow for the shelves 43 to be readily mounted on the supports 41.
Foamed insulation 48 fills the cavity or space 133 defined between the liner 30 and the outer panel 22. The foam extends into the recesses 142 associated with recessed dykes 36 and not into the recessed ridge 33.
In the preferred door construction, a reinforcement collar 50 is mounted to the liner. The collar 50 has a generally rectangular picture frame appearance and a central opening 51 covered by a paper sheet 52.
The collar 50 and sheet 52 co-operate to reinforce the door.
Refernng now to Figures 3 through 7 the preferred embodiment for the vent passage of the present invention is shown. The vent passage is shown to comprise a curved cube 60. Vent tube 60 is secured against the outer wall 42 of the recessed dyke 36 by means of an adhesive tape 62. The tape 62 is patched over the tube 60 and onto the walls 42. The tube 60 is located at the corners 64 of the recessed dyke 36 of the inner door liner 30.
A vent opening 66 comprises a cut-out 67 in the corner of the edges 44 of the liner 30. The cut-out 67 is secured over the in-turned flanges 28 of the outer door panel 22 and provides a vent opening between the outer door panel 22 and the inner door liner 30 which is readily concealed by the use of gasket 47 overlying the corner 64.
In the preferred liner 30 construction, the central liner portion 32 is generally flat and includes a vertically and rearwardly extending central ridge 33 having opposed flexible side walls 35. Side walls 35 carry shelf supports 41 for supporting shelves 43. The side walls 35 are flexible to allow for the shelves 43 to be readily mounted on the supports 41.
Foamed insulation 48 fills the cavity or space 133 defined between the liner 30 and the outer panel 22. The foam extends into the recesses 142 associated with recessed dykes 36 and not into the recessed ridge 33.
In the preferred door construction, a reinforcement collar 50 is mounted to the liner. The collar 50 has a generally rectangular picture frame appearance and a central opening 51 covered by a paper sheet 52.
The collar 50 and sheet 52 co-operate to reinforce the door.
Refernng now to Figures 3 through 7 the preferred embodiment for the vent passage of the present invention is shown. The vent passage is shown to comprise a curved cube 60. Vent tube 60 is secured against the outer wall 42 of the recessed dyke 36 by means of an adhesive tape 62. The tape 62 is patched over the tube 60 and onto the walls 42. The tube 60 is located at the corners 64 of the recessed dyke 36 of the inner door liner 30.
A vent opening 66 comprises a cut-out 67 in the corner of the edges 44 of the liner 30. The cut-out 67 is secured over the in-turned flanges 28 of the outer door panel 22 and provides a vent opening between the outer door panel 22 and the inner door liner 30 which is readily concealed by the use of gasket 47 overlying the corner 64.
-9- CWC- 159 Tube 60 extends along the second wall 42 from the intermediate dyke wall portion 40 as best seen in Figure 7. This allows gases and air to escape from the pockets associated with the recessed space 142.
The placement of the vent tube 60 at the corners with the recessed vent opening 64 provides an effective solution to allow vent gasses produced during the foaming in place of the foam 48 into the door to escape or be exhausted from these deep recesses 142 at the corners of the recess dyke 36. Consequently, the foam is allowed to expand into recesses 142 and reinforce these areas of the door.
As is apparent from the foregoing disclosure, various other embodiments and modifications which may differ from the embodiments disclosed may be readily apparent to one skilled in the art. It should be understood that the scope of the patent shall be defined by the claims and those embodiments which come within the scope of the claims that follow.
The placement of the vent tube 60 at the corners with the recessed vent opening 64 provides an effective solution to allow vent gasses produced during the foaming in place of the foam 48 into the door to escape or be exhausted from these deep recesses 142 at the corners of the recess dyke 36. Consequently, the foam is allowed to expand into recesses 142 and reinforce these areas of the door.
As is apparent from the foregoing disclosure, various other embodiments and modifications which may differ from the embodiments disclosed may be readily apparent to one skilled in the art. It should be understood that the scope of the patent shall be defined by the claims and those embodiments which come within the scope of the claims that follow.
Claims (30)
1. A door for a refrigerator type appliance comprising:
an outer door panel and an inner door liner secured to the outer door panel, the door liner comprising a central liner portion spaced from the outer door panel to define a cavity, the door liner comprising a recessed dyke surrounding the central liner portion, the recessed dyke having inner and outer walls defining a recessed space therebetween that is located further away from the outer door panel than the central liner, the inner walls of the recessed dyke extending away from the central liner, and the outer walls of the recessed dyke extending toward the outer door panel;
foam insulation located between the inner door liner and the outer door panel, the foam insulation extending into the cavity and the recessed space defined by the inner and outer walls of the recessed dyke;
at least one vent opening located in the door; and at least one vent passage extending from within the recessed space to the vent opening permitting the flow of gasses and air therethrough from the recessed space during foaming of the foam insulation to permit the foam substantially fills the cavity and the recessed space.
an outer door panel and an inner door liner secured to the outer door panel, the door liner comprising a central liner portion spaced from the outer door panel to define a cavity, the door liner comprising a recessed dyke surrounding the central liner portion, the recessed dyke having inner and outer walls defining a recessed space therebetween that is located further away from the outer door panel than the central liner, the inner walls of the recessed dyke extending away from the central liner, and the outer walls of the recessed dyke extending toward the outer door panel;
foam insulation located between the inner door liner and the outer door panel, the foam insulation extending into the cavity and the recessed space defined by the inner and outer walls of the recessed dyke;
at least one vent opening located in the door; and at least one vent passage extending from within the recessed space to the vent opening permitting the flow of gasses and air therethrough from the recessed space during foaming of the foam insulation to permit the foam substantially fills the cavity and the recessed space.
2. The door for a refrigerator type appliance of claim 1 wherein the recessed dyke further comprises an intermediate wall portion joining the inner and outer walls of the dyke, and the vent passage has an opening adjacent the intermediate wall portion.
3. The door for a refrigerator type appliance of claim 2 wherein the vent passage is secured in contact with and along the outer wall of the recessed dyke.
4. The door for a refrigerator type appliance of claim 2 wherein a length of tape extends over the vent passage and the outer wall of the dyke to secure the vent passage to the outer wall of the dyke.
The door for a refrigerator type appliance of claim 1 wherein the vent passage is secured in contact with and along the outer wall of the recessed dyke.
6. The door for a refrigerator type appliance of claim 1 wherein a length of tape extends over the vent passage and the outer wall of the dyke to secure the vent passage to the outer wall of the dyke.
7. The door for a refrigerator type appliance of claim 1 wherein inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
8. The door for a refrigerator type appliance of claim 7 wherein the vent opening is located adjacent each corner of the door corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
9. The door for a refrigerator type appliance of claim 2 wherein inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
10. The door for a refrigerator type appliance of claim 9 wherein the vent opening is located adjacent each corner of the door and corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
11. The door for a refrigerator type appliance of claim 3 wherein inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
12. The door for a refrigerator type appliance of claim 11 wherein the vent opening is located adjacent each corner of the door and corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
13. The door for a refrigerator type appliance of claim 4 wherein inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
14. The door for a refrigerator type appliance of claim 13 wherein the vent opening is located adjacent each corner of the door and corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
15. A door for a refrigerator type appliance comprising:
an outer door panel and an inner door liner secured to the outer door panel, the door liner comprising a central liner portion spaced from the outer door panel to define a cavity, the door liner comprising a recessed dyke surrounding the central liner portion, the recessed dyke having inner and outer walls defining a recessed space therebetween that is located further away from the outer door panel than the central liner, the inner wall extending away from the central liner, and the outer wall having a flange edge surface extending toward the outer door panel that is secured with the outer door panel;
foam insulation located between the inner door liner and the outer door panel and extending into the cavity and recessed space defined by the inner and outer walls of the recessed dyke;
at least one vent opening located in the door between the outer door panel and the inner door liner adjacent the flange edge surface; and at least one vent tube extending from within the recessed space to the vent opening permitting the flow of gasses and air therethrough from the recessed space during foaming of the foam insulation to permit the foam substantially fills the cavity and the recessed space.
an outer door panel and an inner door liner secured to the outer door panel, the door liner comprising a central liner portion spaced from the outer door panel to define a cavity, the door liner comprising a recessed dyke surrounding the central liner portion, the recessed dyke having inner and outer walls defining a recessed space therebetween that is located further away from the outer door panel than the central liner, the inner wall extending away from the central liner, and the outer wall having a flange edge surface extending toward the outer door panel that is secured with the outer door panel;
foam insulation located between the inner door liner and the outer door panel and extending into the cavity and recessed space defined by the inner and outer walls of the recessed dyke;
at least one vent opening located in the door between the outer door panel and the inner door liner adjacent the flange edge surface; and at least one vent tube extending from within the recessed space to the vent opening permitting the flow of gasses and air therethrough from the recessed space during foaming of the foam insulation to permit the foam substantially fills the cavity and the recessed space.
16. The door for a refrigerator type appliance of claim 15 wherein the recessed dyke further comprises an intermediate wall portion joining the inner and outer walls, and the vent tube having an opening adjacent the intermediate wall portion.
17. The door for a refrigerator type appliance of claim 16 wherein the vent tube is secured in contact with and along the outer wall of the recessed dyke and follows the outer wall of the recessed dyke.
18. The door for a refrigerator type appliance of claim 16 wherein a length of tape extends over the vent tube and the outer wall of the dyke to secure the vent tube to the outer wall of the dyke.
19. The door for a refrigerator type appliance of claim 15 wherein the vent tube is secured in contact with and along the outer wall of the recessed dyke.
20. The door for a refrigerator type appliance of claim 15 wherein a length of tape extends over the vent tube and the outer wall of the dyke to secure the vent tube to the outer wall of the dyke.
21. The door for a refrigerator type appliance of claim 15 wherein the vent opening is located adjacent each corner of the door corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
22. The door for a refrigerator type appliance of claim 21 wherein the outer door panel includes rearwardly extending side walls with in-turned flanges, and the inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the in-turned flanges of the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
23. The door for a refrigerator type appliance of claim 16 wherein the vent opening is located adjacent each corner of the door corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
24. The door for a refrigerator type appliance of claim 23 wherein the outer door panel includes rearwardly extending side walls with in-turned flanges, and the inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the in-turned flanges of the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
25. The door for a refrigerator type appliance of claim 17 wherein the vent opening is located adjacent each corner of the door corresponding vent passages extend along corresponding corners located in the outer walls of the recessed dyke of the door liner.
26. The door for a refrigerator type appliance of claim 25 wherein the outer door panel includes rearwardly extending side walls with in-turned flanges, and the inner door liner includes an out-turned flange edge extending from the outer wall of the recessed dyke, the out-turned flange edge being secured to the in-turned flanges of the outer door panel, the out-turned flange edges including a recessed cut-out portion that overlays the door panel to define the vent opening.
27. The door for a refrigerator type appliance of claim 26 wherein a sealing gasket is secured to the door to cover the out-turned flange edge of the liner and in-turned flange edges of the outer door cover.
28. The door for a refrigerator type appliance of claim 24 wherein a sealing gasket is secured to the door to cover the out-turned flange edge of the liner and in-turned flange edges of the outer door cover.
29. The door for a refrigerator type appliance of claim 22 wherein a sealing gasket is secured to the door to cover the out-turned flange edge of the liner and in-turned flange edges of the outer door cover.
30. The door for a refrigerator type appliance of claim 1 wherein a sealing gasket is secured to the door to cover the out-turned flange edge of the liner and in-turned flange edges of the outer door cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2287728 CA2287728A1 (en) | 1999-10-28 | 1999-10-28 | Refrigerator door venting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2287728 CA2287728A1 (en) | 1999-10-28 | 1999-10-28 | Refrigerator door venting arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2287728A1 true CA2287728A1 (en) | 2001-04-28 |
Family
ID=4164505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2287728 Abandoned CA2287728A1 (en) | 1999-10-28 | 1999-10-28 | Refrigerator door venting arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2287728A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2437013A3 (en) * | 2010-09-29 | 2017-04-12 | Samsung Electronics Co., Ltd. | Refrigerator |
| CN112109265A (en) * | 2019-06-20 | 2020-12-22 | 海尔智家股份有限公司 | Refrigerator foaming sealing mechanism |
| US11408665B2 (en) * | 2015-07-15 | 2022-08-09 | Lg Electronics Inc. | Door for home appliance, home appliance, and method for manufacturing the same |
-
1999
- 1999-10-28 CA CA 2287728 patent/CA2287728A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2437013A3 (en) * | 2010-09-29 | 2017-04-12 | Samsung Electronics Co., Ltd. | Refrigerator |
| US10260796B2 (en) | 2010-09-29 | 2019-04-16 | Samsung Electronics Co., Ltd. | Refrigerator |
| US11408665B2 (en) * | 2015-07-15 | 2022-08-09 | Lg Electronics Inc. | Door for home appliance, home appliance, and method for manufacturing the same |
| US11698220B2 (en) | 2015-07-15 | 2023-07-11 | Lg Electronics Inc. | Door for home appliance, home appliance, and method for manufacturing the same |
| CN112109265A (en) * | 2019-06-20 | 2020-12-22 | 海尔智家股份有限公司 | Refrigerator foaming sealing mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |