US3834177A - Refrigerator cabinet structure and its manufacture - Google Patents

Refrigerator cabinet structure and its manufacture Download PDF

Info

Publication number
US3834177A
US3834177A US00311722A US31172272A US3834177A US 3834177 A US3834177 A US 3834177A US 00311722 A US00311722 A US 00311722A US 31172272 A US31172272 A US 31172272A US 3834177 A US3834177 A US 3834177A
Authority
US
United States
Prior art keywords
compartment
liner
compartments
cooling coil
sections
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
Application number
US00311722A
Other languages
English (en)
Inventor
J Scarlett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Space Systems Loral LLC
Original Assignee
Philco Ford Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philco Ford Corp filed Critical Philco Ford Corp
Priority to US00311722A priority Critical patent/US3834177A/en
Priority to CA176,996A priority patent/CA997579A/en
Priority to FR7330104A priority patent/FR2209649B2/fr
Priority to BR6742/73A priority patent/BR7306742D0/pt
Priority to GB3779675A priority patent/GB1444630A/en
Priority to GB4462673A priority patent/GB1444629A/en
Priority to ES419388A priority patent/ES419388A1/es
Priority to JP48119495A priority patent/JPS4988154A/ja
Priority to ZA739308A priority patent/ZA739308B/xx
Priority to IT54185/73A priority patent/IT1000258B/it
Application granted granted Critical
Publication of US3834177A publication Critical patent/US3834177A/en
Priority to ES1975217439U priority patent/ES217439Y/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/32—Moulds having cutting means
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/34—Moulds for undercut articles
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/06—Refrigerators with a vertical mullion

Definitions

  • This invention relates to refrigerator cabinet construction, and particularly to the formation of communicating passages between adjacent storage compartments defined by molded thermoplastic liner sections.
  • a refrigeration coil is positioned in one of two insulated compartments having steel liners, communicating air passages are formed between the compartments, and a fan is positioned to circulate air between the compartments to cool the same to predetermined desired temperatures.
  • the liners of such a refrigerator are of the molded plastic type, and the insulation is molded therebetween and between the liner and the outer shell, difficulties are encountered in arriving at a suitable and economical means for forming the air passages.
  • I have been able to optimize the thickness of insulation surrounding various parts of the liners, and greatly to simplify the problem of shelf support while virtually eliminating the need for providing holes through the liner walls.
  • the invention contemplates a novel method for molding a pair of adjacent walled cavities as one integral structure of thermoplastic material, and for defining fluid passages therebetween.
  • I utilize the steps of heating said walled structures to soften the same, forming said softened structures over mold means including protrusions extend able into the structure a distance sufficient to cause predetermined areas of the softened thermoplastic material to engage one another, and then piercing the engaged areas to form the passages.
  • the invention further contemplates novel features of construction of such walled structures, including passages made according to the above described method and novel wall configuration.
  • FIG. 1 is an elevational showing of refrigerator cabinet structure of one type embodying a pair of compartment liners made in accordance with the invention, and with the doors removed for convenience of illustration;
  • FIG. 2 is a sectional showing of the cabinet structure taken generally along the line indicated by arrows 2--2 applied to FIG. 1;
  • FIG. 3 is a perspective showing of a portion of the refrigerator structure seen in FIGS. 1 and 2, illustrating the inner passages thereof made in accordance with the method contemplated by the present invention
  • FIG. 4 is a sectional-elevational view of mold apparatus for fabricating the compartment liners of the cabinet seen in FIGS. 1 to 3, and in accordance with the method contemplated by the present invention;
  • FIGS. 5, 6 and 7 are further showings of apparatus seen in FIG. 4, and illustrating operational features thereof;
  • FIG. 8 is an elevational showing of refrigerator cabinet construction of another type and made in accordance with the invention, the cabinet being shown with the door removed;
  • FIG. 9 is a sectional showing of the cabinet seen in FIG. 8, the view being taken generally along the line indicated by arrows 99 applied to FIG. 8.
  • FIG. 10 is a showing of apparatus similar to that seen in FIGS. 4 to 7, and illustrating method steps used in the fabrication of the liner portion of the apparatus seen in FIGS. 8 and 9, as it would be seen in section along the lines indicated by arrows 1010 applied to FIG. 8.
  • FIGS. 11 and 12 are illustrations of further apparatus used in the fabrication of the above mentioned liners.
  • the illustrated refrigerator cabinet 10 has a pair of compartments having unidirectionally presented openings, and defined by a pair of liner sections 11 and 12.
  • the liner sections are made of thermoplastic material, and, in accordance with the general teaching of the. Houghton inventions, are molded as an integral structure from a single flat sheet of such material.
  • the refrigerating unit is conventional, comprising a compressor 15, condenser 16, and an evaporator 17 connected in the usual series flow circuit by suitable conduit means (not shown).
  • Evaporator 17 is conveniently located in the recessed portion 21 of upper liner section 11, and a partition 22 includes a horizontal section that extends over the recess and the evaporator.
  • the horizontal section of partition 22 is provided with front air passages 23, and a vertical section 22a of the partition is spaced from the top and rear walls of liner section 11 as shown.
  • Air moved by a blower 24 disposed in the rear, scroll shaped portion of recess 21 is caused to flow into the freezer storage compartment defined by liner section 11, through the space between the liner and partition 22a, whence it returns to the region of evaporator 17 through front passages 23.
  • the lower food storage compartment, defined by liner section 12 is cooled by air caused to move from the compartment through passages 25, over evaporator 17, thence back into the compartment through a passage 30 extending between the wall of scroll 20 and the upper horizontal wall of liner 12.
  • Recess 21 includes wall portions 11a, 1112 that are set in a predetermined distance which effectively provides a thickened insulation section inthe region of evaporator 17, thereby improving the thermal performance of the refrigerator.
  • Recess 21 also serves as a drain trough or sump for the evaporator, and a drain opening may be provided in said sump by molding or by separate installation.
  • the method contemplated by this invention readily accommodates formation of the communicating air passages 25 and (see also FIG. 3) between the upper and lower refrigerator compartments, and which passages accommodate the above described air movement.
  • Such apparatus includes, and first with reference to FIG. 4, an open top, generally box-shaped chamber 26 having a pair of sub-sections 27 and 28, each separated from the other by a partition 29, and each ported at 31 and 32, respectively, to suitable vacuum producing mechanism of conventional design (not shown).
  • a clamping ring 33 closely surrounds the upper rim of vacuum chamber 26, and is constructed and arranged to clamp in place a heat-softened sheet of thermoplastic material M that has been urged by an assist plug 35 onto a pair of vented mold members 37 and 38 shaped in correspondence with the shape of the interior of the food compartment liners.
  • the left-hand mold 37 includes an auxiliary mold section 42 that is extensible from the retracted position thereof illustrated in FIGS. 4 and 7 to the extended positions illustrated in FIGS. 5 and 6.
  • auxiliary mold section 42 that is extensible from the retracted position thereof illustrated in FIGS. 4 and 7 to the extended positions illustrated in FIGS. 5 and 6.
  • auxiliary mold section 42 Movements of auxiliary mold section 42 are affored by runners 44 on mold 37 slidably interengaged with corresponding grooves (not shown) on base portion 420 of the auxiliary mold section.
  • Means for moving auxiliary mold section 42 includes apair of links 46, only one of which is shown, each pinned to the mold section at 47 and to a pair of spaced bell cranks 48 that are pivoted at 49 to mold 37.
  • Bell cranks 48 only one of which is illustrated for the sake of convenience, further are pinned to the piston rod of a pneumatic cylinder 50 pivoted at 52 to mold 37.
  • the construction and arrangement is such that extension of piston rod 51 will rock crank 48 about its pivot 49 in a counterclockwise direction to move link 46 to the left and retract auxiliary mold section 42 to the position shown in FIGS.
  • auxiliary mold section 42 is projected into engagement with that portion of sheet M that extends over left-hand mold 37, after the portion of the same sheet M extending over the right-hand mold 38 has been vacuum-formed over the latter mold, and its protrusion 60, by drawing a vacuum in chamber 28 through port 32. Projection of auxiliary mold section 42 to its fully extended position causes regions of the heat-softened sheet overlying surfaces 59 and protrusions 60 to engage and thereafter permanently adhere to one another.
  • a second extensible and retractible auxiliary mold member 61 is carried by 'mold section 38, and provides, in its extended position seen in FIGS. 5 and 6, for molding the air passage means 30 seen in FIGS. 2 and 3.
  • Mold member 61 is generally retangular in cross section and is slidable from retracted positions shown in FIGS. 4 and 7 through suitable aperture means (not shown) within the wall of mold member 38.
  • the inner, or right-hand, end of mold member 61 is carried by rod 62 of a pneumatic cylinder 63 mounted within mold member 38.
  • the construction and arrangement is such that operation of rod 62 to extended position moves mold member 61 to its extended position (FIGS. 5 and 6). Conversely, operation to retract rod 62 also retracts mold member 62 (FIGS. 4 and 7).
  • heat softened sheet M is urged onto molds 37 and 38 by movement of assist plug 35 to the position shown, and while auxiliary mold sections 42 and 61 are in their retracted positions.
  • Assist plug 35 is then moved away from and clear of the molds to the position shown in FIG. 5.
  • Auxiliary mold section 61 is then extended, urging its confronting portion of flat overlying sheet M into engagement with a corresponding portion of the same sheet overlying auxiliary mold section 42. This is followed by drawing a vacuum in chamber 28 by way of port 32, whereupon the right-hand portion of heat softened sheet M is caused to conform to mold member 38 and its extended auxiliary section 61.
  • a vacuum is drawn in left-hand chamber 27 by way of port 31, while auxiliary mold section 42 is extended.
  • the portion of sheet M overlying mold 37 and its auxiliary section 42 accordingly is drawn into conformity with the latter and portions of sheet M overlying surface 59 and confronting protrusions 60 engage and adhere to one another.
  • auxiliary mold sections 42 and 61 are then moved from extended to retracted positions, and the liner sections molded from sheet M are ready for stripping as a unit from the molds.
  • auxiliary mold section 61 is shown as two-dimensional, it will have a cross sectional dimension corresponding to that of air passage 30 as best seen in FIG. 3.
  • suitable apparatus may include a punch 64 and die 65 of desired crosssectional shape and operable to remove liner sections 11c, 12a in completion of air passage 30. It will be understood that passages are completed in the same manner, using a similar punch of suitable shape. As a result of the punching operation, there are formed lined, generally tubular, fluid passages or ducts 25 and that are sealed with respect to later provided insulation 13 through which the ducts pass.
  • cabinet 70 has a pair of compartments having unidirectionally presented openings, and defined by a pair of liner sections 71 and 72.
  • the liner sections are made of thermoplastic material, and, in especial accordance with the invention, are molded as an integral structure from a single flat sheet of such material.
  • Thermal insulation designated generally by the numeral 73 fills the spaces between the confronting walls of liner sections 71 and 72, and between the outer walls of the same sections and the walls of the outer shell 74 of cabinet 70.
  • the refrigerating unit is conventional, comprising a compressor 75, a condensor (not shown) and an evaporator 77 connected in the usual series flow circuit by suitable conduit means.
  • Evaporator 77 is conveniently located in the lower rear region of left-hand liner section 71, and a vertical partition 78 includes a lower section that extends over the evaporator and an upper section that extends over a fan 80.
  • the upper section of partition 78 is provided with air grilles 79 over the fan 80.
  • Air moved by fan 80 is caused to flow through grilles 79 into the freezer storage compartment defined by liner section 71, through the space between the liner and the lower section of partition 78, thence returning to the region of evaporator 77.
  • the right-hand food storage compartment, defined by liner section 72, is cooled by air caused to move from the compartment through lower passage 81, over evaporator 77, and thence back into the compartment through an upper passage 82 extending between the compartments.
  • the method contemplated by the invention readily accommodates formation of the communicating air passages 82 and 81 between the sideby-side refrigerator compartments, and which passages accommodate the above described air movement.
  • the method is carried out using apparatus similar to that used in forming liners l1 and 12, as explained in connection with FIGS. 3, 4, 5 and 6.
  • Apparatus includes vacuum chambers 83, 83a ported at 84, 84a to vacuum producing devices.
  • a clamping ring 85 is positioned to clamp the heat-softened sheet 86 that has been urged by an assist plug (not shown) onto a pair of vented, pivotally mounted mold members 87 and 88 shaped in correspondence with the shape of the interior of the desired food compartment liners.
  • the right-hand mold member 88 includes a pair of auxiliary mold sections 89 and 90, of generally elongate and generally circular cross section, respectively, which are mounted for movement from retracted positions to extended positions as shown in FIG. 10. Movements of mold sections 89 and 90 are provided by pneumatic cylinders 91 and 92, respectively.
  • a heat softened sheet 86 is urged onto mold members 87 and 88, and a vacuum drawn through port 84 to conform sheet 86 with mold member 87.
  • Auxiliary mold sections 89 and 90 are then moved to the illustrated extended position, and a vacuum is drawn through port 8411, causing sheet 86 to conform with mold member 88 and its auxiliary mold sections 89 and 90.
  • mold sections 89 and 90 are moved to retracted position, and the integrally formed liner sections and interconnecting air passages are removed from the mold members.
  • the formed air passages are then punched through, in accordance with the showing of FIGS. 11 and 12.
  • a further feature of the invention is that the method contemplated thereby makes possible the molding two liner compartments 71 and 72 of various relative sizes and shapes.
  • the lower side walls of left-hand compartment liner 71 are formed inwardly as seen at 71a and 71b and thus accommodate thickened insulated wall sections to either side of the vertically extending evaporator coil 77 positioned against the lower rear wall of liner 7].
  • a drain trough 71c is molded into a lower rear section of the liner 71, using auxiliary mold means of the type used to form recess 21 in FIG. 3.
  • a number of advantages derive from both embodiments of the disclosed invention, in that two separate compartments, and interconnecting air passages, are integrally connected to accommodate their installation as a unit in the outer shell of a refrigerator. Further, by way of advantage, one compartment is very accurately registered with respect to the other so that predictable temperature differentials can be maintained therebetween, with resultant improvements in operating performance. Further control of temperatures is achieved through selectivity of insulation thickness (see 11a, 11b, FIG. 3, and 71a, 71b, FIGS. 8-10) in the region of the evaporator, which thickness may be selectively varied simply by changing the contours of the molds in the desired regions. Still further, condensate drain troughs (see 21, FIG. 3, and 71c, FIGS. 8, 9), shelf supports (see 71d, FIGS. 8, 9) and the like may be formed by appropriately shaping surfaces of the molds.
  • a refrigerator including: a unitary liner having wall sections defining first and second compartments, a wall section defining said first compartment being disposed in confronting spaced relation to a wall section defining said second compartment; cooling coil means in said first compartment; drain trough means disposed below said cooling coil means, said drain trough means being integrally molded with a first compartment-defining wall section of said unitary liner; passage means extending between said compartments, said passage means being defined by integrally formed tubular portions of at least one of said confronting spaced wall sections, said tubular portions extending between and having open ends each communicating with a corresponding one of said compartments; fan means for circulating air through said passage means and over said cooling coil means to cool said second compartment; and inwardly spaced molded portions of the liner wall sections defining said first compartment, said portions accommodating provision of relatively thickened insulated regions adjacent said cooling coil means.
  • a refrigerator including: a unitary liner molded from thermoplastic material and having walls defining first and second compartments, one wall of one compartment being disposed in confronting spaced relationship to a wall of the other compartment; cooling coil means in said first compartment; inwardly spaced molded wall sections of said first liner, which sections accommodate provision of relatively thickened insulated regions adjacent said cooling coil means; passage means extending between said compartments, said passage means being defined by integrally formed tubular portions of at least one of said confronting spaced walls, said tubular portions extending between and having open ends each communicating with the interior of a corresponding one of said-compartments; and fan means for circulating air through said passage means and over said cooling coil means to cool said second compartment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US00311722A 1972-12-07 1972-12-07 Refrigerator cabinet structure and its manufacture Expired - Lifetime US3834177A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US00311722A US3834177A (en) 1972-12-07 1972-12-07 Refrigerator cabinet structure and its manufacture
CA176,996A CA997579A (en) 1972-12-07 1973-07-20 Refrigerator cabinet structure and its manufacture
FR7330104A FR2209649B2 (fr) 1972-12-07 1973-08-17
BR6742/73A BR7306742D0 (pt) 1972-12-07 1973-08-31 Processo de moldagem em fabricacao de um artigo unitario cr omo um gabinete de refrigerador, e, resultante refrigerad
GB4462673A GB1444629A (en) 1972-12-07 1973-09-24 Mould-ng of articles
GB3779675A GB1444630A (en) 1972-12-07 1973-09-24 Moulding of articles
ES419388A ES419388A1 (es) 1972-12-07 1973-10-05 Un metodo de moldeo de un articulo configurado de material termoplastico.
JP48119495A JPS4988154A (fr) 1972-12-07 1973-10-25
ZA739308A ZA739308B (en) 1972-12-07 1973-12-06 Refrigerator cabinet structure and its manufacture
IT54185/73A IT1000258B (it) 1972-12-07 1973-12-07 Struttura di armadio frigorifero e fabbricazione di esso
ES1975217439U ES217439Y (es) 1972-12-07 1975-12-16 Refrigerador.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00311722A US3834177A (en) 1972-12-07 1972-12-07 Refrigerator cabinet structure and its manufacture

Publications (1)

Publication Number Publication Date
US3834177A true US3834177A (en) 1974-09-10

Family

ID=23208166

Family Applications (1)

Application Number Title Priority Date Filing Date
US00311722A Expired - Lifetime US3834177A (en) 1972-12-07 1972-12-07 Refrigerator cabinet structure and its manufacture

Country Status (9)

Country Link
US (1) US3834177A (fr)
JP (1) JPS4988154A (fr)
BR (1) BR7306742D0 (fr)
CA (1) CA997579A (fr)
ES (2) ES419388A1 (fr)
FR (1) FR2209649B2 (fr)
GB (2) GB1444629A (fr)
IT (1) IT1000258B (fr)
ZA (1) ZA739308B (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059966A (en) * 1976-07-26 1977-11-29 General Electric Company Airflow distribution arrangement for a side-by-side refrigerator
US4768353A (en) * 1987-07-24 1988-09-06 Whirlpool Corporation Refrigeration apparatus air return
US4917256A (en) * 1988-07-12 1990-04-17 Whirlpool Corporation Interlocking and sealing arrangement for modular domestic appliances
US4924680A (en) * 1988-07-18 1990-05-15 Whirlpool Corporation Refrigerator temperature responsive air outlet baffle
US6735976B2 (en) * 2002-08-31 2004-05-18 Samsung Electronics Co., Ltd Refrigerator
US20050005426A1 (en) * 2003-07-10 2005-01-13 Sae Magnetics (H.K.) Ltd. Manufacturing method of flying magnetic head slider
US20060090496A1 (en) * 2004-09-27 2006-05-04 Maytag Corporation Apparatus and method for dispensing ice from a bottom mount refrigerator
US20060260349A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator with modular water tank assembly
US20060260348A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator ice compartment latch
US20060260342A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Freeze tolerant waterline valve for a refrigerator
US20060260333A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Insulated ice compartment for bottom mount refrigerator
US20060266061A1 (en) * 2005-05-27 2006-11-30 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with temperature control system
US20060266069A1 (en) * 2005-05-26 2006-11-30 Choi Bong J Refrigerator
EP1858377A1 (fr) * 2005-03-18 2007-11-28 Carrier Corporation Unite de plateau inferieur pour presentoir refrigere
US7392665B2 (en) 2003-09-19 2008-07-01 Lg Electronics Inc. Refrigerator with icemaker
US7428820B2 (en) 2003-03-28 2008-09-30 Lg Electronics Inc. Refrigerator
US7458229B2 (en) 2005-05-18 2008-12-02 Maytag Corporation Refrigerator with intermediate temperature icemaking compartment
US20090056366A1 (en) * 2007-07-11 2009-03-05 Lg Electronics Inc. Refrigerator
US7549297B2 (en) 2005-05-18 2009-06-23 Maytag Corporation Refrigerator air control damper for ice compartment
US20090277210A1 (en) * 2008-05-08 2009-11-12 Whirlpool Corporation Refrigerator with easy access drawer
US20090288441A1 (en) * 2005-05-10 2009-11-26 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating device with cooling of circulating air
US20180087822A1 (en) * 2016-09-29 2018-03-29 Lg Electronics Inc. Refrigerator
US10415873B2 (en) 2017-12-08 2019-09-17 Electrolux Home Products, Inc. Dual asymmetrical and symmetrical architecture cantilever positioning
US10808982B2 (en) 2017-12-08 2020-10-20 Electrolux Home Products, Inc. Modular flipper mullion receiver

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7903117L (sv) * 1979-04-09 1980-10-10 Electrolux Ab Sett och anordning vid en kombinerad kyl- och frysmobel
CN1177188C (zh) * 2001-08-31 2004-11-24 Lg电子株式会社 冰箱中的冷却空气循环装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576208A (en) * 1949-01-21 1951-11-27 Avco Mfg Corp Refrigerator cabinet construction having heat exchange inner walls
US2727363A (en) * 1953-05-19 1955-12-20 Henry P Niemczyk Refrigerator insulator unit
US3091946A (en) * 1958-03-27 1963-06-04 Gen Motors Corp Cabinet and process for making same
US3359750A (en) * 1965-12-02 1967-12-26 Gen Motors Corp Refrigerator with defrost when necessary system
US3370439A (en) * 1966-06-01 1968-02-27 Hupp Corp Refrigerators
US3375679A (en) * 1967-02-09 1968-04-02 Ranncy Refrigerator Company Refrigerator-freezer construction
US3486347A (en) * 1968-12-27 1969-12-30 Defiance Intern Ltd Self-defrosting refrigerator
US3522712A (en) * 1968-07-05 1970-08-04 Whirlpool Co Snow free forced air refrigerator
US3599442A (en) * 1969-09-22 1971-08-17 Gen Motors Corp Unitary fan evaporator assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996609A (en) * 1958-07-07 1961-08-15 Wilson Bertram Arnold Sheet panel
JPS4527712Y1 (fr) * 1968-12-19 1970-10-26

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576208A (en) * 1949-01-21 1951-11-27 Avco Mfg Corp Refrigerator cabinet construction having heat exchange inner walls
US2727363A (en) * 1953-05-19 1955-12-20 Henry P Niemczyk Refrigerator insulator unit
US3091946A (en) * 1958-03-27 1963-06-04 Gen Motors Corp Cabinet and process for making same
US3359750A (en) * 1965-12-02 1967-12-26 Gen Motors Corp Refrigerator with defrost when necessary system
US3370439A (en) * 1966-06-01 1968-02-27 Hupp Corp Refrigerators
US3375679A (en) * 1967-02-09 1968-04-02 Ranncy Refrigerator Company Refrigerator-freezer construction
US3522712A (en) * 1968-07-05 1970-08-04 Whirlpool Co Snow free forced air refrigerator
US3486347A (en) * 1968-12-27 1969-12-30 Defiance Intern Ltd Self-defrosting refrigerator
US3599442A (en) * 1969-09-22 1971-08-17 Gen Motors Corp Unitary fan evaporator assembly

Cited By (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059966A (en) * 1976-07-26 1977-11-29 General Electric Company Airflow distribution arrangement for a side-by-side refrigerator
US4768353A (en) * 1987-07-24 1988-09-06 Whirlpool Corporation Refrigeration apparatus air return
US4917256A (en) * 1988-07-12 1990-04-17 Whirlpool Corporation Interlocking and sealing arrangement for modular domestic appliances
US4924680A (en) * 1988-07-18 1990-05-15 Whirlpool Corporation Refrigerator temperature responsive air outlet baffle
US6735976B2 (en) * 2002-08-31 2004-05-18 Samsung Electronics Co., Ltd Refrigerator
US20110100048A1 (en) * 2003-03-28 2011-05-05 Lg Electronics Inc. Refrigerator
US7637119B2 (en) 2003-03-28 2009-12-29 Lg Electronics Inc. Refrigerator
US8850841B2 (en) 2003-03-28 2014-10-07 Lg Electronics Inc. Refrigerator
US8850843B2 (en) 2003-03-28 2014-10-07 Lg Electronics Inc. Refrigerator
US8146379B2 (en) 2003-03-28 2012-04-03 Lg Electronics Inc. Refrigerator
US20110197620A1 (en) * 2003-03-28 2011-08-18 Lg Electronics Inc. Refrigerator
US20110197619A1 (en) * 2003-03-28 2011-08-18 Lg Electronics Inc. Refrigerator
US7490474B2 (en) 2003-03-28 2009-02-17 Lg Electronics Inc. Refrigerator
US7762098B2 (en) 2003-03-28 2010-07-27 Lg Electronics Inc. Refrigerator
US7677055B2 (en) 2003-03-28 2010-03-16 Lg Electronics Inc. Refrigerator
US7673470B2 (en) 2003-03-28 2010-03-09 Lg Electronics Inc. Refrigerator
US8850842B2 (en) 2003-03-28 2014-10-07 Lg Electronics Inc. Refrigerator
US7631514B2 (en) 2003-03-28 2009-12-15 Lg Electronics Inc. Refrigerator
US7624591B2 (en) 2003-03-28 2009-12-01 Lg Electronics Inc. Refrigerator
US7552597B2 (en) 2003-03-28 2009-06-30 Lg Electronics Inc. Refrigerator
US7520139B2 (en) 2003-03-28 2009-04-21 Lg Electronics Inc. Refrigerator
US7490475B2 (en) 2003-03-28 2009-02-17 Lg Electronics Inc. Refrigerator
US7428820B2 (en) 2003-03-28 2008-09-30 Lg Electronics Inc. Refrigerator
US7430873B2 (en) 2003-03-28 2008-10-07 Lg Electronics Inc. Refrigerator
US7520138B2 (en) 2003-03-28 2009-04-21 Lg Electronics Inc. Refrigerator
US7484382B2 (en) 2003-03-28 2009-02-03 Lg Electronics Inc. Refrigerator
US20050005426A1 (en) * 2003-07-10 2005-01-13 Sae Magnetics (H.K.) Ltd. Manufacturing method of flying magnetic head slider
US7392665B2 (en) 2003-09-19 2008-07-01 Lg Electronics Inc. Refrigerator with icemaker
US20110113811A1 (en) * 2003-09-19 2011-05-19 Lg Electronics Inc. Refrigerator with icemaker
US7654105B2 (en) 2003-09-19 2010-02-02 Lg Electronics Inc. Refrigerator with icemaker
US7703298B2 (en) 2003-09-19 2010-04-27 Lg Electronics Inc. Refrigerator with icemaker
US20110107785A1 (en) * 2003-09-19 2011-05-12 Lg Electronics Inc. Refrigerator with icemaker
US8707728B2 (en) 2003-09-19 2014-04-29 Lg Electronics Inc. Refrigerator with icemaker
US8601830B2 (en) 2003-09-19 2013-12-10 Lg Electronics Inc. Refrigerator with icemaker
US20110113812A1 (en) * 2003-09-19 2011-05-19 Lg Electronics Inc. Refrigerator with icemaker
US20110113813A1 (en) * 2003-09-19 2011-05-19 Lg Electronics Inc. Refrigerator with icemaker
US8353177B2 (en) 2004-09-27 2013-01-15 Whirlpool Corporation Apparatus and method for dispensing ice from a bottom mount refrigerator
US20060090496A1 (en) * 2004-09-27 2006-05-04 Maytag Corporation Apparatus and method for dispensing ice from a bottom mount refrigerator
EP1858377A4 (fr) * 2005-03-18 2009-06-03 Carrier Corp Unite de plateau inferieur pour presentoir refrigere
EP1858377A1 (fr) * 2005-03-18 2007-11-28 Carrier Corporation Unite de plateau inferieur pour presentoir refrigere
US20090288441A1 (en) * 2005-05-10 2009-11-26 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating device with cooling of circulating air
US8789386B2 (en) * 2005-05-10 2014-07-29 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigerating device with cooling of circulating air
US20060260333A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Insulated ice compartment for bottom mount refrigerator
US7591141B2 (en) 2005-05-18 2009-09-22 Maytag Corporation Electronic control system for insulated ice compartment for bottom mount refrigerator
US7287397B2 (en) 2005-05-18 2007-10-30 Whirlpool Corporation Refrigerator with modular water tank assembly
US7458229B2 (en) 2005-05-18 2008-12-02 Maytag Corporation Refrigerator with intermediate temperature icemaking compartment
US20060260349A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator with modular water tank assembly
US20060260348A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator ice compartment latch
US20080104977A1 (en) * 2005-05-18 2008-05-08 Coulter Tim L Insulated ice compartment for bottom mount refrigerator
US7594413B2 (en) 2005-05-18 2009-09-29 Maytag Corporation Refrigerator ice compartment latch
US7726148B2 (en) 2005-05-18 2010-06-01 Maytag Corporation Refrigerator ice compartment seal
US7549297B2 (en) 2005-05-18 2009-06-23 Maytag Corporation Refrigerator air control damper for ice compartment
US20100326102A1 (en) * 2005-05-18 2010-12-30 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US8695370B2 (en) 2005-05-18 2014-04-15 Whirlpool Corporation Refrigerator ice compartment with intermediate temperature
US7552594B2 (en) 2005-05-18 2009-06-30 Maytag Corporation Refrigerator ice maker with improved air impingement
US7337620B2 (en) 2005-05-18 2008-03-04 Whirlpool Corporation Insulated ice compartment for bottom mount refrigerator
US11486625B2 (en) 2005-05-18 2022-11-01 Whirlpool Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US9879898B2 (en) 2005-05-18 2018-01-30 Whirlpool Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US7568354B2 (en) 2005-05-18 2009-08-04 Maytag Corporation Refrigerator with improved water fill tube for ice maker
US20060260346A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator with improved water fill tube for ice maker
US7568357B2 (en) 2005-05-18 2009-08-04 Maytag Corporation Freeze tolerant waterline valve for a refrigerator
US20060260342A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Freeze tolerant waterline valve for a refrigerator
US20060260351A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator ice maker with improved air impingement
US10775092B2 (en) 2005-05-18 2020-09-15 Whirlpool Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US20060266069A1 (en) * 2005-05-26 2006-11-30 Choi Bong J Refrigerator
US7263856B2 (en) * 2005-05-26 2007-09-04 Lg Electronics Inc. Refrigerator
US7568359B2 (en) 2005-05-27 2009-08-04 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with controlled heater
US7900465B2 (en) 2005-05-27 2011-03-08 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US20110000237A1 (en) * 2005-05-27 2011-01-06 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US20110000238A1 (en) * 2005-05-27 2011-01-06 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US20060266061A1 (en) * 2005-05-27 2006-11-30 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with temperature control system
US20060266059A1 (en) * 2005-05-27 2006-11-30 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with controlled damper
US7607312B2 (en) 2005-05-27 2009-10-27 Maytag Corporation Insulated ice compartment for bottom mount refrigerator with temperature control system
US8033130B2 (en) * 2007-07-11 2011-10-11 Lg Electronics Inc. Refrigerator
US20090056366A1 (en) * 2007-07-11 2009-03-05 Lg Electronics Inc. Refrigerator
US8966926B2 (en) 2008-05-08 2015-03-03 Whirlpool Corporation Refrigerator with easy access drawer
US9927167B2 (en) 2008-05-08 2018-03-27 Whirlpool Corporation Refrigerator with easy access drawer
US10132558B2 (en) 2008-05-08 2018-11-20 Whirlpool Coporation Refrigerator with easy access drawer
US20090277210A1 (en) * 2008-05-08 2009-11-12 Whirlpool Corporation Refrigerator with easy access drawer
US20180087822A1 (en) * 2016-09-29 2018-03-29 Lg Electronics Inc. Refrigerator
US10473379B2 (en) * 2016-09-29 2019-11-12 Lg Electronics Inc. Refrigerator
US10788255B2 (en) 2016-09-29 2020-09-29 Lg Electronics Inc. Refrigerator
US11686521B2 (en) 2016-09-29 2023-06-27 Lg Electronics Inc. Refrigerator
US10415873B2 (en) 2017-12-08 2019-09-17 Electrolux Home Products, Inc. Dual asymmetrical and symmetrical architecture cantilever positioning
US10808982B2 (en) 2017-12-08 2020-10-20 Electrolux Home Products, Inc. Modular flipper mullion receiver
US10928122B2 (en) 2017-12-08 2021-02-23 Electrolux Home Products, Inc. Dual asymmetrical and symmetrical architecture cantilever positioning

Also Published As

Publication number Publication date
IT1000258B (it) 1976-03-30
ZA739308B (en) 1974-10-30
CA997579A (en) 1976-09-28
JPS4988154A (fr) 1974-08-23
GB1444629A (en) 1976-08-04
ES217439Y (es) 1977-04-16
ES419388A1 (es) 1976-11-01
FR2209649B2 (fr) 1977-02-25
GB1444630A (en) 1976-08-04
BR7306742D0 (pt) 1974-10-22
ES217439U (es) 1977-01-01
FR2209649A2 (fr) 1974-07-05

Similar Documents

Publication Publication Date Title
US3834177A (en) Refrigerator cabinet structure and its manufacture
ES2313214T3 (es) Metodo para fabricar muebles de aparatos.
US11752669B2 (en) Method of fabricating 3D vacuum insulated refrigerator structure having core material
US4951481A (en) Refrigerator with efficient cold accumulator
US2484310A (en) Refrigerating apparatus
US6449976B1 (en) Horizontal freezer with drawers
US2795113A (en) Refrigerating apparatus
DE3478191D1 (en) Refrigerated cabinet
US3816051A (en) Apparatus for forming articles from plastic sheet material
JPS6038627B2 (ja) 冷蔵庫およびその製造方法
US3781394A (en) Method for forming articles from plastic sheet material
US3873659A (en) Method for forming articles from plastic sheet material
US3879159A (en) Method and apparatus for forming articles from plastic sheet material
JPS5918302Y2 (ja) 冷蔵庫
JPH04174272A (ja) 冷蔵庫等のダクト装置
JPS6038863Y2 (ja) 冷蔵庫
KR200232023Y1 (ko) 냉장고내상진공성형용금형
JPH0522148B2 (fr)
JPS589167Y2 (ja) 冷蔵庫
KR100452722B1 (ko) 냉장고용 내상의 제조방법 및 이에 사용되는 금형
JPS5911347Y2 (ja) 冷蔵庫
JPS5941507Y2 (ja) 冷蔵庫
KR20150120178A (ko) 냉장고 및 냉장고의 내상 제조방법
JPS5918281Y2 (ja) 冷却箱体
JPS5918287Y2 (ja) 間接冷却式冷蔵庫