US3633783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus cabinet construction
Assignee: Westinghouse Electric Corp
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Filing: 1970-01-21
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Granted: 1972-01-11
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Expires: 1990-01-21
Abstract
Abstract The invention provides a thermal breaker trim strip which is snapped into place between the refrigerator inner liner and outer wrapper. This trim strip is put in place before the foaming operation on the refrigerator cabinet and maintains a seal for the expanding liquid polyurethane foam insulation. Accordingly, the trim strip is provided with a forklike end which compressingly envelopes the outer end of the inner liner and a wand end which is disposed in a channel arrangement formed by the outer wrapper. The forklike end includes flexible, compressed fingers which tend to move the trim strip outwardly while the wand end of the trim strip includes a bent over end portion that tends to oppose this motion so that the breaker strip forms a tight seal at both the inner liner and outer wrapper.
Inventors
- 👤 John R Aue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:54
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/085
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
214 words
Refrigerator apparatus cabinet construction comprising: a. an outer wrapper, b. an inner liner nested in said outer wrapper, c. open channel means attached to said outer wrapper and disposed adjacent said inner liner, d. channel means attached to said inner liner and disposed adjacent said outer wrapper, e. said outer wrapper and said inner liner being spatially displaced from each other, f. breaker strip means disposed between said outer wrapper and said inner liner and connected to each to cover the space therebetween, g. said breaker strip means including means integral with said breaker strip means for urging said breaker strip means and outer wrapper more closely together for reducing the spatial displacement therebetween, said means for urging said breaker strip means and outer wrapper more closely together including means on one end of said breaker strip means for urging said breaker strip means outwardly and wedging means on the other end of said breaker strip means for opposing outward movement thereof, h. said channel means attached to said inner liner having a bight portion that said means for urging said breaker strip means outwardly directly engages against, i. said means for urging said breaker strip means outwardly being compressed by said direct engagement with said bight portion to provide for said outward urging.
Claim 2
Dependent Claim
214 words
Refrigerator apparatus cabinet construction comprising: a. an outer wrapper, b. an inner liner nested in said outer wrapper, c. open channel means attached to said outer wrapper and disposed adjacent said inner liner, d. channel means attached to said inner liner and disposed adjacent said outer wrapper, e. said outer wrapper and said inner liner being spatially displaced from each other, f. breaker strip means disposed between said outer wrapper and said inner liner and connected to each to cover the space therebetween, g. said breaker strip means including means integral with said breaker strip means for urging said breaker strip means and outer wrapper more closely together for reducing the spatial displacement therebetween, said means for urging said breaker strip means and outer wrapper more closely together including means on one end of said breaker strip means for urging said breaker strip means outwardly and wedging means on the other end of said breaker strip means for opposing outward movement thereof, h. said channel means attached to said inner liner having a bight portion that said means for urging said breaker strip means outwardly directly engages against, i. said means for urging said breaker strip means outwardly being compressed by said direct engagement with said bight portion to provide for said outward urging.
Claim 3
Dependent Claim
115 words
Refrigerator apparatus cabinet construction comprising: a. an outer shell, b. a nested inner liner, c. said outer shell providing channel means opening adjacent said nested inner liner, d. said nested inner liner providing a closed channel means adjacent said outer wrapper, e. a breaker strip means for covering the space between said web means and said channel means, f. said breaker strip means including a fork portion extending over said closed channel means and a wand portion engaged in said channel means, g. a foam insulating material expanded in the hollow space between the walls of said shell and liner and in a direct contact with said breaker strip means, h. said fork portion including
Claim 4
Dependent Claim
115 words
Refrigerator apparatus cabinet construction comprising: a. an outer shell, b. a nested inner liner, c. said outer shell providing channel means opening adjacent said nested inner liner, d. said nested inner liner providing a closed channel means adjacent said outer wrapper, e. a breaker strip means for covering the space between said web means and said channel means, f. said breaker strip means including a fork portion extending over said closed channel means and a wand portion engaged in said channel means, g. a foam insulating material expanded in the hollow space between the walls of said shell and liner and in a direct contact with said breaker strip means, h. said fork portion including
Claim 5
Dependent Claim
12 words
one of said tangs extending angularly towards the other of said tangs,
Claim 6
Dependent Claim
12 words
one of said tangs extending angularly towards the other of said tangs,
Claim 7
Dependent Claim
7 words
flexible fingers disposed between said tangs and
Claim 8
Dependent Claim
7 words
flexible fingers disposed between said tangs and
Claim 9
Dependent Claim
37 words
The refrigerator apparatus cabinet set out in claim 2 wherein said wand portion includes (a) a tang portion disposed within said channel means, and (b) said tang portion being deformingly bent when inserted in said channel means.
Claim 10
Dependent Claim
38 words
The refrigerator apparatus cabinet construction set out in claim 3 wherein said forward movement of said breaker strip means urges said deformed tang portion into tighter abutting engagement with said channel means for insuring a proper seal therebetween.
Claim 11
Dependent Claim
35 words
said tangs engaging over said web means with said flexible fingers deformed by said web means whereby said breaker strip means tends to move forwardly relative to the remainder of said refrigerator apparatus cabinet construction.
Claim 12
Dependent Claim
35 words
said tangs engaging over said web means with said flexible fingers deformed by said web means whereby said breaker strip means tends to move forwardly relative to the remainder of said refrigerator apparatus cabinet construction.
Claim 13
Dependent Claim
47 words
The refrigerator apparatus cabinet construction set out in claim 4 wherein one of said tangs of said fork portion includes an angled portion extending away from the linear extent of said other tang for providing ease of assembly between said breaker strip means and said inner liner.
Claim 14
Dependent Claim
23 words
The refrigerator apparatus cabinet construction set out in claim 5 wherein polyurethane foam is disposed between said inner liner and said outer shell.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |