Patent US3855451A successfully refreshed from Google Patents.
US3855451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food heating and warming cabinet
Assignee: Cleveland Range LLC
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Filing: 1974-05-02
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Granted: 1974-12-17
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Expires: 1994-05-02
Abstract
Abstract A cabinet in which food packages can be heated preparatory to serving and maintained at a substantially uniform desirable temperature during serving. The cabinet is especially adapted for use in institutions, such as schools and the like, and is particularly characterized in being so constructed and arranged as to permit easy cleaning and maintenance thereof.
Inventors
- 👤 R Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:15
CPC Classifications
A; A47; A47J; A47J39/00; A47J39/003
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
181 words
In an electrically heated insulated cabinet for heating packets of foodstuff preparatory to serving; a frame, an upwardly opening well formed in said frame having vertical side walls and end walls and a horizontal bottom wall, laterally extending perforated vertical partition means removeably mounted in said well and dividing the well into compartments, lid means for closing the well, a blower in said frame outside one end wall of said well having an inlet opening into said well through said one end wall for circulating the air within the well to heat the packets of foodstuff, outlet means for said blower at the bottom of said one end wall whereby said blower expels air horizontally over the bottom wall of the well toward the other end wall of the well, electric heaters extending longitudinally above said bottom wall in laterally spaced relation and within the range of the air discharged by said blower, and tunnel members mounted on said bottom wall between said heaters and extending longitudinally along said bottom wall and having open ends spaced inwardly from said end walls.
Claim 2
Dependent Claim
181 words
In an electrically heated insulated cabinet for heating packets of foodstuff preparatory to serving; a frame, an upwardly opening well formed in said frame having vertical side walls and end walls and a horizontal bottom wall, laterally extending perforated vertical partition means removeably mounted in said well and dividing the well into compartments, lid means for closing the well, a blower in said frame outside one end wall of said well having an inlet opening into said well through said one end wall for circulating the air within the well to heat the packets of foodstuff, outlet means for said blower at the bottom of said one end wall whereby said blower expels air horizontally over the bottom wall of the well toward the other end wall of the well, electric heaters extending longitudinally above said bottom wall in laterally spaced relation and within the range of the air discharged by said blower, and tunnel members mounted on said bottom wall between said heaters and extending longitudinally along said bottom wall and having open ends spaced inwardly from said end walls.
Claim 3
Dependent Claim
52 words
An electrically heated cabinet according to claim 1 in which said one end wall has a lower edge parallel to and spaced vertically from the bottom wall of said well and forming with said bottom wall a slit extending the width of said well and through which the blower discharge is directed.
Claim 4
Dependent Claim
54 words
An electrically heated cabinet according to claim 1 in which said electric heaters are spaced laterally in said wall in parallel spaced relation to the bottom wall of said well, said tunnel members comprising at least two tunnel members on said bottom wall upstanding therefrom to at least the level of said electric heaters.
Claim 5
Dependent Claim
48 words
An electrically heated cabinet according to claim 1 which includes an air deflector extending laterally in said well at the upper edge of said other end wall of the well and operable for deflecting air rising in the respective end of the well horizontally back toward the well.
Claim 6
Dependent Claim
22 words
An electrically heated cabinet according to claim 1 wherein said lid means includes lockable means for closing the tops of said compartments.
Claim 7
Dependent Claim
39 words
An electrically heated cabinet according to claim 1 which includes means providing for at least two levels of energization of said electric heaters whereby the well can be brought up to temperature rapidly and then held at said temperature.
Claim 8
Dependent Claim
25 words
An electrically heated cabinet according to claim 1 in which said blower is adapted for operation at a higher speed or at a lower speed.
Claim 9
Dependent Claim
35 words
An electrically heated cabinet according to claim 1 which includes resiliently supported elevator platform means removeably mounted in each compartment of said well on which trays of food packets can be supported in stacked relation.
Claim 10
Dependent Claim
20 words
An electrically heated cabinet according to claim 1 in which said well is formed of stainless steel with rounded corners.
Claim 11
Dependent Claim
71 words
An electrically heated cabinet according to claim 1 which includes an access door in said frame on the opposite side of said blower from said well, said access door forming a compartment in said frame in which the motor for the blower is mounted and which compartment contains the electrical components in circuit with said motor and said electric heaters and into which compartment the ends of the electric heaters extend.
Claim 12
Dependent Claim
41 words
An electrically heated cabinet according to claim 10 in which each heater is hairpin shaped with the closed end adjacent said other end wall of tHe well and with the ends to which electrical connections are made disposed in said compartment.
Claim 13
Dependent Claim
26 words
An electrically heated cabinet according to claim 10 in which said compartment has opening means therein for the supply of cooling air to the blower motor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |