Patent US3091832A successfully refreshed from Google Patents.
US3091832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kiln
Assignee: Individual
•
Filing: 1960-08-05
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Granted: 1963-06-04
•
Expires: 1980-08-05
Abstract
No abstract record available.
Inventors
- 👤 Charles D Tinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:43
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/02; F27B9/021; F27B9/14; F27B9/20; F27B9/26; F27B9/262
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A KILN COMPRISING A PAIR OF SIDE BY SIDE TWIN KILN TUNNELS HAVING AN IMPERFORATE COMMON WALL BETWEEN THEM FORMED OF REFRACTORY MATERIAL; AND EACH OF SAID TUNNELS ALSO HAVING A FLOOR, A ROOF AND AN OUTSIDE SIDE WALL; SAID COMMON WALL HAVING AN INLET LEVEL ADJACENT TO ITS LOWER END AND BEING FORMED AT SAID INLET LEVEL AS A SERPENTINE REFRACTORY BARRIER BETWEEN SAID TUNNELS THUS PROVIDING A PLURALITY OF ALTERNATE STACK INLETS FROM EACH OF SAID TWIN TUNNELS ALTERNATELY INTERPOSED AND BEING IMPERFORATE ABOVE SAID INLET LEVEL SO THAT HEATED GASES MAY NOT PASS FROM ONE TUNNEL TO THE OTHER; AND A PLURALITY OF SEPARATED STACKS EACH CONNECTED TO ONE OF SAID INLETS AND EXTENDING UPWARD THROUGH AND ENCLOSED BY SAID COMMON WALL; EACH SAID OUTSIDE WALL OF EACH OF SAID TUNNELS HAVING A PLURALITY OF BURNERS SO POSITIONED THAT THEY ARE SPACED APART BUT THAT THE BURNING GASES ISSUING FROM ALL OF SAID BURNERS EXTEND FOR SUBSTANTIALLY THE ENTIRE LENGTH OF SAID SIDE WALLS.
Claim 2
Dependent Claim
167 words
A KILN COMPRISING A PAIR OF SIDE BY SIDE TWIN KILN TUNNELS HAVING AN IMPERFORATE COMMON WALL BETWEEN THEM FORMED OF REFRACTORY MATERIAL; AND EACH OF SAID TUNNELS ALSO HAVING A FLOOR, A ROOF AND AN OUTSIDE SIDE WALL; SAID COMMON WALL HAVING AN INLET LEVEL ADJACENT TO ITS LOWER END AND BEING FORMED AT SAID INLET LEVEL AS A SERPENTINE REFRACTORY BARRIER BETWEEN SAID TUNNELS THUS PROVIDING A PLURALITY OF ALTERNATE STACK INLETS FROM EACH OF SAID TWIN TUNNELS ALTERNATELY INTERPOSED AND BEING IMPERFORATE ABOVE SAID INLET LEVEL SO THAT HEATED GASES MAY NOT PASS FROM ONE TUNNEL TO THE OTHER; AND A PLURALITY OF SEPARATED STACKS EACH CONNECTED TO ONE OF SAID INLETS AND EXTENDING UPWARD THROUGH AND ENCLOSED BY SAID COMMON WALL; EACH SAID OUTSIDE WALL OF EACH OF SAID TUNNELS HAVING A PLURALITY OF BURNERS SO POSITIONED THAT THEY ARE SPACED APART BUT THAT THE BURNING GASES ISSUING FROM ALL OF SAID BURNERS EXTEND FOR SUBSTANTIALLY THE ENTIRE LENGTH OF SAID SIDE WALLS.
References Cited (Backward Citations)
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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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |