US3653532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic refrigerator with reinforcing framework
Assignee: Motors Liquidation Co
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Filing: 1970-04-30
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Granted: 1972-04-04
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Expires: 1990-04-30
Abstract
Abstract In the preferred form of this refrigerator cabinet for installation in a wall, a rectangular framework supports walls of plastic foam insulation surrounding the insulated compartment. This framework is embedded in the insulation. A plastic sheet inner liner extends within and lines the insulated compartment and has outwardly extending flanges forming the front of the cabinet and hiding the foam insulation.
Inventors
- 👤 Leonard J Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:48
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/06; F25D23/062; F25D23/064; Y; Y10; Y10S; Y10S220/00; Y10S220/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
346 words
A refrigerator cabinet for installation in a kitchen wall including a steel frame of rectangular parallelepipedal shape comprising four elongated corner upright members of L-shaped cross section and an upper set of four elongated horizontal members of L-shaped cross section fastened to said upright members in a rectangular configuration extending between the tops of said upright members, three elongated bottom horizontal members of L-shaped cross section in a front opening U-shaped configuration extending between said upright members so as to connect the bottoms thereof along each side and the rear of said frame, a lower set of four elongated horizontal members of Lshaped cRoss section fastened to said upright members in a rectangular configuration extending between said upright members and spaced above said bottom horizontal members defining a machinery compartment therebetween with rectangular shaped forward and rearward facing opening between said lower set of four members and said three bottom members, cabinet walls of polyurethane plastic foam insulation material molded about and extending between said upper and lower sets of horizontal members and between said upright members on the top, sides and rear of said frame, said frame being embedded within and supporting said cabinet walls, a rectangular parallelepipedal shaped liner member performed of sheet plastic material extending within said cabinet walls between said upper and lower sets of horizontal members and having at the front relatively short integral outwardly extending top and side flanges completely covering the front edges of said cabinet walls as to be flush with said cabinet top and side walls, said inner liner having a bottom relatively long integral flange extending downwardly in flush relationship with the lower edges of said frame side walls so as to completely cover the front opening of said machinery compartment, said downwardly extending bottom flange having louvered openings molded therein to allow for the circulation of air into and out of said machinery compartment, and said cabinet side, top, bottom and rear wall outer surfaces being sealed by a coating material forming an outer cabinet shell whereby said cabinet is located in the kitchen wall.
Claim 2
Dependent Claim
346 words
A refrigerator cabinet for installation in a kitchen wall including a steel frame of rectangular parallelepipedal shape comprising four elongated corner upright members of L-shaped cross section and an upper set of four elongated horizontal members of L-shaped cross section fastened to said upright members in a rectangular configuration extending between the tops of said upright members, three elongated bottom horizontal members of L-shaped cross section in a front opening U-shaped configuration extending between said upright members so as to connect the bottoms thereof along each side and the rear of said frame, a lower set of four elongated horizontal members of Lshaped cRoss section fastened to said upright members in a rectangular configuration extending between said upright members and spaced above said bottom horizontal members defining a machinery compartment therebetween with rectangular shaped forward and rearward facing opening between said lower set of four members and said three bottom members, cabinet walls of polyurethane plastic foam insulation material molded about and extending between said upper and lower sets of horizontal members and between said upright members on the top, sides and rear of said frame, said frame being embedded within and supporting said cabinet walls, a rectangular parallelepipedal shaped liner member performed of sheet plastic material extending within said cabinet walls between said upper and lower sets of horizontal members and having at the front relatively short integral outwardly extending top and side flanges completely covering the front edges of said cabinet walls as to be flush with said cabinet top and side walls, said inner liner having a bottom relatively long integral flange extending downwardly in flush relationship with the lower edges of said frame side walls so as to completely cover the front opening of said machinery compartment, said downwardly extending bottom flange having louvered openings molded therein to allow for the circulation of air into and out of said machinery compartment, and said cabinet side, top, bottom and rear wall outer surfaces being sealed by a coating material forming an outer cabinet shell whereby said cabinet is located in the kitchen wall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |