Patent US3589307A successfully refreshed from Google Patents.
US3589307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oven
Assignee: LANHAM MACHINERY CO Inc
•
Filing: 1968-11-06
•
Granted: 1971-06-29
•
Expires: 1988-11-06
Abstract
Abstract An energy absorbing oven construction wherein the oven is constructed of heat transfer resistant panel members bolted together by exterior frame members and wherein the roof of the oven is unattached such that in the event of an oven blowout the roof panels will lift off without causing disintegration of the oven itself. Burner elements within the oven are placed adjacent a spiral conveyor carrying products to be baked within the oven and the temperature of the burner elements is controlled in such a manner so that uniform heating of the products as they are carried through the oven by the spiral conveyor is maintained.
Inventors
- 👤 William E Lanham
- 👤 Gene C Miller
- 👤 William E Lanham Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
A; A21; A21B; A21B1/00; A21B1/42; A21B1/48
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
111 words
In an oven for baking products, the combination of, an oven enclosure and a conveyor for conveying products to be baked through said oven, said conveyor comprising a conveyor run which spirals within said oven enclosure, said oven including a plurality of heating elements disposed within said oven and located parallel to and directly beneath selected runs of said spiral conveyor and within said oven enclosure thereby to create zones of oven heat through which products conveyed by said conveyor pass and wherein each of said products to be baked is conveyed through the same path so that individual products are subjected to identical heating conditions during passage through said oven.
Claim 2
Dependent Claim
111 words
In an oven for baking products, the combination of, an oven enclosure and a conveyor for conveying products to be baked through said oven, said conveyor comprising a conveyor run which spirals within said oven enclosure, said oven including a plurality of heating elements disposed within said oven and located parallel to and directly beneath selected runs of said spiral conveyor and within said oven enclosure thereby to create zones of oven heat through which products conveyed by said conveyor pass and wherein each of said products to be baked is conveyed through the same path so that individual products are subjected to identical heating conditions during passage through said oven.
Claim 3
Dependent Claim
52 words
The oven as defined in claim 1 wherein said heating elements are individually and automatically controlled in response to temperature sensing devices in said oven and are disposed adjacent said convey path to closely control the zones of uniform heat so that the uniformity of the baked products can be precisely maintained.
Claim 4
Dependent Claim
62 words
The oven as defined in claim 1 wherein said oven is comprised of individual panel elements having a high resistance to heat transfer, said panels being maintained in a contiguous relation to form an oven enclosure by means of an exterior supporting structure, said panels comprising sheets of fire resistant material spaced from each other and having insulating material between said sheets.
Claim 5
Dependent Claim
142 words
In an oven for baking products in which a spiral conveyor is provided for carrying the products through the oven, a path of travel for the conveyor through which each of the individual products pass for uniform treatment in the oven, a plurality of heating elements disposed within the oven directly beneath the path of travel of selected runs of said spiral conveyor to create heating zones in the oven wherein the products are heated by the direct action of the heating elements, individual temperature sensing means in each of said zones for automatically controlling the heating elements in the respective zones in response to temperature conditions therein, said sensing means being located adjacent the path of travel of said conveyor through their respective zones to closely coNtrol the temperature conditions in said zones whereby uniformity of the baked products is maintained.
Claim 6
Dependent Claim
142 words
In an oven for baking products in which a spiral conveyor is provided for carrying the products through the oven, a path of travel for the conveyor through which each of the individual products pass for uniform treatment in the oven, a plurality of heating elements disposed within the oven directly beneath the path of travel of selected runs of said spiral conveyor to create heating zones in the oven wherein the products are heated by the direct action of the heating elements, individual temperature sensing means in each of said zones for automatically controlling the heating elements in the respective zones in response to temperature conditions therein, said sensing means being located adjacent the path of travel of said conveyor through their respective zones to closely coNtrol the temperature conditions in said zones whereby uniformity of the baked products is maintained.
Claim 7
Dependent Claim
62 words
The oven as defined in claim 4 wherein said oven is comprised of individual panel elements having a high resistance to heat transfer, said panels being maintained in a contiguous relation to form an oven enclosure by means of an exterior supporting structure, said panels comprising sheets of fire resistant material spaced from each other and having insulating material between said sheets.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |