Patent US3763013A successfully refreshed from Google Patents.
US3763013A
Expired / Lapsed
US
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Non concentric discharge table for rotary hearth calciner
Assignee: Marathon Oil Co
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Filing: 1970-11-13
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Granted: 1973-10-02
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Expires: 1990-11-13
Abstract
Abstract The center of the discharge table normally used with rotary hearth calciners is moved away from the center line of the rotary hearth so that the coke moves out from under the soaking pit, giving greater access and ease of installation for rabbles which plow the coke to the edge of the discharge table.
Inventors
- 👤 V Allred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:18
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/16; C22B1/20; C10; C10B; C10B7/00; C10B7/02; F; F27; F27B; F27B21/00; F27B21/06; F27B9/00; F27B9/14; F27B9/16; F27B9/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
34 words
Apparatus according to claim 1 wherein the delivery point is located substantially on the periphery of said rotary hearth and wherein the outlet point is located substantially at the center of said rotary hearth.
Claim 2
Dependent Claim
34 words
Apparatus according to claim 1 wherein the delivery point is located substantially at the center of said discharge table and wherein the outlet point is located substantially at the periphery of said discharge table.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 2 wherein the delivery point is located substantially at the center of said discharge table and wherein the outlet point is located substantially at the periphery of said discharge table.
Claim 4
Dependent Claim
30 words
In a rotary hearth furnace of claim 1, the further improvement comprising cooling means located above said discharge table for distributing fluids downward onto said materials on said discharge table.
Claim 5
Dependent Claim
33 words
Apparatus according to claim 6 wherein water sprays are provided above said discharge table for cooling material on said discharge table by directing water downward to contact said material on said discharge table.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |