Patent US3897989A successfully refreshed from Google Patents.
US3897989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display and storage device
Assignee: Individual
•
Filing: 1973-12-04
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Granted: 1975-08-05
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Expires: 1993-12-04
Abstract
Abstract A display and storage device is intended for the distribution of cooled, and also of pre-heated, foods on a supporting unit, each unit having a compartmented surface divided axially by a double symmetrical concave groove on both faces and a perforated surface. The units are used in combination with a storage cabinet which received the units superimposed in two stacked rows divided up axially by a fixed partition and by a flexible partition with fibres and tufts joining the axial concave profiles of the tray units and separating thermally the refrigerated sectors from the preheated sectors. The heating sectors may have columns ending in a discharge hood and in a recovery tank, and the refrigerating columns may be supplied laterally by distributing shafts, with deflecting vanes, which pass cold air to the evaporator through the action of a recycling aspirator.
Inventors
- 👤 Rene Grandi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:54
CPC Classifications
A; A47; A47J; A47J39/00; A47J39/003; A47F; A47F3/00; A47F3/04; A47F3/0482; A47F3/0486; A47B; A47B31/00; A47B31/02; A47B2031/026; Y; Y10; Y10S; Y10S165/00; Y10S165/918
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
65 words
A display and storage device, for the distribution of cooled and preheated foods on a supporting unit, comprising a compartmented dielectric, isothermal insulating surface having a double symmetrical concave groove on both faces axially dividing said surface and a perforated surface on one side of said groove, said device having no space that is not accessible for cleaning, and no counter-backing off making manufacture complex.
Claim 2
Dependent Claim
65 words
A display and storage device, for the distribution of cooled and preheated foods on a supporting unit, comprising a compartmented dielectric, isothermal insulating surface having a double symmetrical concave groove on both faces axially dividing said surface and a perforated surface on one side of said groove, said device having no space that is not accessible for cleaning, and no counter-backing off making manufacture complex.
Claim 3
Dependent Claim
57 words
A device, according to claim 1, in which the compartmented part is intended for foods to be refrigerated and the perforated part is intended for containers holding dishes to be eaten hot, said device being preferably movable and provided with isothermal packing separating the metal surfaces from the supporting surfaces that are made generally of synthetic material.
Claim 4
Dependent Claim
92 words
A display and storage device which comprises a storage cabinet, said cabinet receiving trays, each tray comprising a compartmented, dielectric, isothermal insulating surface having a double symmetrical concave groove on both faces axially dividing said surface and a perforated surface on one side of said groove, said trays being stacked in two rows of stacks divided up axially by a fixed outer partition and by a flexible inner insulating partition with fibres and tufts joining the axial concave profiles of the trays and separating thermally the refrigerated sectors from the preheated sectors.
Claim 5
Dependent Claim
92 words
A display and storage device which comprises a storage cabinet, said cabinet receiving trays, each tray comprising a compartmented, dielectric, isothermal insulating surface having a double symmetrical concave groove on both faces axially dividing said surface and a perforated surface on one side of said groove, said trays being stacked in two rows of stacks divided up axially by a fixed outer partition and by a flexible inner insulating partition with fibres and tufts joining the axial concave profiles of the trays and separating thermally the refrigerated sectors from the preheated sectors.
Claim 6
Dependent Claim
53 words
A device, according to claim 3 wherein the heating sectors have their columns ending in a discharge hood and in a recovery tank, and wherein the refrigerating columns are supplied laterally by distributing shafts, each shaft having deflecting vanes which pass cold air to the evaporator through the action of a recycling aspirator.
Claim 7
Dependent Claim
28 words
A device according to claim 4 wherein said perforated surface each includes a container of relatively high thermal conductivity and a heater positioned in contact with each container.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |