US3632012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator cabinets
Assignee: US Philips Corp
•
Filing: 1970-01-20
•
Granted: 1972-01-04
•
Expires: 1990-01-20
Abstract
Abstract A refrigerator cabinet having walls of a sandwich construction formed by an inner lining, an outer surface and an insulating body of foamed polyurethane plastic formed in situ therebetween. Channel-shaped breaker strips surround the opening of the cabinet and seal an edge of the insulation. Spacer means are arranged between the inner lining and outer surface so as to keep them spaced apart and properly located during the fabrication of the sandwich construction.
Inventors
- 👤 Joshua Wilson Kitson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:47
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/06; F25D23/062; F25D23/064; F25D23/08; F25D23/082; F25D23/085; Y; Y10; Y10S; Y10S220/00; Y10S220/902
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
138 words
A refrigerator cabinet comprising an inner lining, an outer surface, and an insulating body of foamed plastic material formed in situ between the inner lining and outer surface thereby forming a sandwich construction having the shape of an open container, a breaker strip arranged along the edges of the sandwich construction about the opening so as to provide a means for properly aligning and locating the inner lining and outer surface during fabricating of the sandwich construction and so as to provide a seal at the edge of the foam during its introduction to the sandwich construction and a fluidtight seal at the edge of the foam when the cabinet is in use as a refrigerator, said inner lining and outer surface being secured in the breaker strip by a locking medium prior to the introduction of foam.
Claim 2
Dependent Claim
138 words
A refrigerator cabinet comprising an inner lining, an outer surface, and an insulating body of foamed plastic material formed in situ between the inner lining and outer surface thereby forming a sandwich construction having the shape of an open container, a breaker strip arranged along the edges of the sandwich construction about the opening so as to provide a means for properly aligning and locating the inner lining and outer surface during fabricating of the sandwich construction and so as to provide a seal at the edge of the foam during its introduction to the sandwich construction and a fluidtight seal at the edge of the foam when the cabinet is in use as a refrigerator, said inner lining and outer surface being secured in the breaker strip by a locking medium prior to the introduction of foam.
Claim 3
Dependent Claim
44 words
The refrigerator cabinet according to claim 1 further comprising a resilient spacer strip arranged between the inner lining and outer surface when placed in the breaker strip so as to space the inner lining and outer surface apart before the locking medium is introduced.
Claim 4
Dependent Claim
16 words
The refrigerator cabinet according to claim 2 wherein said locking medium is a synthetic resin compound.
Claim 5
Dependent Claim
35 words
The refrigerator cabinet according to claim 3 wherein the synthetic resin compound is one of the components of the plastic foam to be introduced as the insulating body between the inner lining and outer surface.
Claim 6
Dependent Claim
28 words
The refrigerator cabinet according to claim 2 further comprising means attached to said breaker strip for supporting an outer finishing panel to be mounted on the outer surface.
Claim 7
Dependent Claim
36 words
The refrigerator cabinet according to claim 1 further comprising a channel-shaped member having flexible sidewalls supported within said breaker strip so as to provide means for spacing and supporting therein the inner lining and outer surface.
Claim 8
Dependent Claim
17 words
The refrigerator cabinet according to claim 6 wherein said channel-shaped member is secured to said breaker strip.
Claim 9
Dependent Claim
18 words
The refrigerator cabinet according to claim 7 wherein said channel-shaped member is mechanically secured to the breaker strip.
Claim 10
Dependent Claim
28 words
The refrigerator cabinet according to claim 1 further comprising a reinforcement member located alonG the edge of said sandwich construction and at least partially embedded within said foam.
Claim 11
Dependent Claim
17 words
The refrigerator cabinet according to claim 9 wherein said reinforcement member is secured to said breaker strip.
Claim 12
Dependent Claim
48 words
The refrigerator cabinet according to claim 10 wherein said reinforcement member is secured to said breaker strip by a locking medium formed of a synthetic resin compound introduced between the inner lining and outer surface prior to the introduction of foam during the fabrication of the sandwich construction.
Claim 13
Dependent Claim
33 words
The refrigerator cabinet according to claim 11 wherein said reinforcement member is arranged so as to bridge any breaks in the continuity of said breaker strip along the edge of the sandwich construction.
Claim 14
Dependent Claim
19 words
The refrigerator cabinet according to claim 12 wherein said reinforcement member is a metal strip of L-shaped cross section.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |