Patent US3302936A successfully refreshed from Google Patents.
US3302936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular traveling grate machine
Assignee: McDowell-Wellman Engineering Co
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Filing: 1964-11-23
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Granted: 1967-02-07
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Ban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:26
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/16; C22B1/20; C10; C10B; C10B7/00; C10B7/06; F; F27; F27B; F27B21/00; F27B21/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A HORIZONTALLY DISPOSED CIRCULAR TRAVELING GATE MACHINE COMPRISING IN COMBINATION: (A) A CIRCULAR TRACKWAY; (B) A PLURALITY OF GAS PERMEABLE PALLETS MOVABLE ON AND GUIDED BY SAID TRACKWAY, EACH PALLET HAVING A MATERIAL SUPPORTING GRATE FORMED OF SPACED GATE ELEMENTS; (C) MEANS FOR MOVING THE PALLETS ALONG THE TRACKWAY; (D) STATIONARY GAS CONFINING HOOD MEANS DISPOSED ABOVE THE TRACKWAY AND PALLETS COVERING AT LEAST A PORTION OF THE TRACKWAY; (E) STATIONARY GAS CONFINING WINDBOX MEANS DISPOSED BELOW THE TRACKWAY IN CHAMBER FORMING RELATION WITH SAID HOOD; (F) LIQUID SEALING MEANS COACTING BETWEEN THE UPPER REGION OF THE MOVING PALLETS AND THE LOWER REGION OF THE STATIONARY HOOD MEANS; AND (G) LIQUID SEALING MEANS COATING BETWEEN THE LOWER REGION OF THE MOVING PALLETS AND SAID UPPER REGION OF THE STATIONARY WINDBOX MEANS WHEREBY THE CHAMBER DEFINED BY THE HOOD MEANS AND THE WINDBOX MEANS IS SEALED AT ITS MARGINAL EDGES FROM THE AMBIENT ATMOSPHERE.
Claim 2
Dependent Claim
153 words
A HORIZONTALLY DISPOSED CIRCULAR TRAVELING GATE MACHINE COMPRISING IN COMBINATION: (A) A CIRCULAR TRACKWAY; (B) A PLURALITY OF GAS PERMEABLE PALLETS MOVABLE ON AND GUIDED BY SAID TRACKWAY, EACH PALLET HAVING A MATERIAL SUPPORTING GRATE FORMED OF SPACED GATE ELEMENTS; (C) MEANS FOR MOVING THE PALLETS ALONG THE TRACKWAY; (D) STATIONARY GAS CONFINING HOOD MEANS DISPOSED ABOVE THE TRACKWAY AND PALLETS COVERING AT LEAST A PORTION OF THE TRACKWAY; (E) STATIONARY GAS CONFINING WINDBOX MEANS DISPOSED BELOW THE TRACKWAY IN CHAMBER FORMING RELATION WITH SAID HOOD; (F) LIQUID SEALING MEANS COACTING BETWEEN THE UPPER REGION OF THE MOVING PALLETS AND THE LOWER REGION OF THE STATIONARY HOOD MEANS; AND (G) LIQUID SEALING MEANS COATING BETWEEN THE LOWER REGION OF THE MOVING PALLETS AND SAID UPPER REGION OF THE STATIONARY WINDBOX MEANS WHEREBY THE CHAMBER DEFINED BY THE HOOD MEANS AND THE WINDBOX MEANS IS SEALED AT ITS MARGINAL EDGES FROM THE AMBIENT ATMOSPHERE.
References Cited (Backward Citations)
US1607035A
Cited
GB306674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |