US3804481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator cabinet structure
Assignee: Whirlpool Corp
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Filing: 1972-12-27
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Granted: 1974-04-16
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Expires: 1992-12-27
Abstract
Abstract A refrigerator cabinet structure having a refrigerated space defined by wall means one of which is a bottom wall having a zone with a high incidence of impact shock as by falling heavy objects in which this wall comprises a substantially rigid insulation and a fragile liner exposed to the refrigerated space with a shock absorbing mass at the impact zone located between the liner and the insulation so as to be hidden by the liner but available for absorbing high impact shock.
Inventors
- 👤 H Tillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:09
CPC Classifications
F; F25; F25D; F25D23/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
52 words
A refrigerator cabinet structure, comprising: a refrigerated space defined by wall means including a wall having an impact zone, said impact zone comprising a substantially rigid insulation and a substantially fragile liner exposed to said refrigerated space; and a shock absorbing mass in said impact zone located between said liner and insulation.
Claim 2
Dependent Claim
52 words
A refrigerator cabinet structure, comprising: a refrigerated space defined by wall means including a wall having an impact zone, said impact zone comprising a substantially rigid insulation and a substantially fragile liner exposed to said refrigerated space; and a shock absorbing mass in said impact zone located between said liner and insulation.
Claim 3
Dependent Claim
26 words
The cabinet structure of claim 1 wherein said wall having the impact zone comprises a bottom wall and said shock absorbing mass comprises a resilient pad.
Claim 4
Dependent Claim
35 words
The cabinet structure of claim 2 wherein said shock absorbing mass comprises a resilient foam pad adhered to the inner surface of the liner, whereby the liner may yield on impact relative to the pad.
Claim 5
Dependent Claim
35 words
The cabinet structure of claim 1 wherein there are provided in said space article supporting shelf means and said zone and its shock absorbing mass are positioned directly beneath an edge of said shelf means.
Claim 6
Dependent Claim
18 words
The cabinet structure of claim 4 wherein said shock absorbing mass comprises a resilient pad comprising plastic foam.
Claim 7
Dependent Claim
89 words
A refrigerator cabinet structure, comprising: a refrigerated space defined by wall means including a wall having an impact zone, said impact zone comprising a substantially rigid insulation and a substantially fragile liner exposed to said refrigerated space; article supporting shelf means in said space having a free edge, said wall being a bottom wall and said impact zone being located beneath said edge; and a shock absorbing mass in said impact zone located between said liner and insulation, said shock absorbing mass comprising a resilient pad comprising plastic foam.
Claim 8
Dependent Claim
89 words
A refrigerator cabinet structure, comprising: a refrigerated space defined by wall means including a wall having an impact zone, said impact zone comprising a substantially rigid insulation and a substantially fragile liner exposed to said refrigerated space; article supporting shelf means in said space having a free edge, said wall being a bottom wall and said impact zone being located beneath said edge; and a shock absorbing mass in said impact zone located between said liner and insulation, said shock absorbing mass comprising a resilient pad comprising plastic foam.
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) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |