US3100811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal heating furnace
Assignee: Individual
•
Filing: 1960-05-31
•
Granted: 1963-08-13
•
Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:57
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/22; F27B9/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A DIRECT-FIRED METAL HEATING FURNACE, APPARATUS COMPRISING, IN COMBINATION, A HEATING SECTION HAVING LONGITUDINAL EXTENDING PARALLEL COOLED SKID RAIL SUPPORTS THEREIN, A SOAKING SECTION FOLLOWING SAID HEAT SECTION A REFRACTORY HEART IN SAID SOAKING SECTION, A ROOF IN SAID SECTION SUBSTANTIALLY PARALLEL TO SAID HEALTH AND RELATIVELY CLOSE THERETO, A PLURALITY OF DIRECT FIRING RADIANT BURNERS IN SAID THERETO, A PLURALITY OF DIRECT FIRING RADIANT BURNERS IN SAID ROOF WITH CIRCULAR FLARING PORT BLOCK RADIANT HEATING SURFACES HAVING AXES NORMAL TO SAID HEARTH, SAID BURNERS BEING ARRANGED IN LONGITUDINAL COLUMNS WITH ONE SUCH COLUMN BEING IN ALIGNMENTS WITH BUT LONGITUDINALLT DISPLACED RELATION TO EACH SAID SKID RAIL SUPPORT RESPECTIVELY, SAID AXES IN EACH COLUMN BEING IN A VERTICAL PLANE PASSING THROUGH ITS RESPECTIVE SKID RAIL SUPPORT, SAID BURNERS FURTHER BEING ARRANGED IN LONGITUDINALLY SUCCESSIVE TRANSVERSE, ROWS, RADIANT BURNER BEING OPERABLE AT SELEC-
Claim 2
Dependent Claim
143 words
IN A DIRECT-FIRED METAL HEATING FURNACE, APPARATUS COMPRISING, IN COMBINATION, A HEATING SECTION HAVING LONGITUDINAL EXTENDING PARALLEL COOLED SKID RAIL SUPPORTS THEREIN, A SOAKING SECTION FOLLOWING SAID HEAT SECTION A REFRACTORY HEART IN SAID SOAKING SECTION, A ROOF IN SAID SECTION SUBSTANTIALLY PARALLEL TO SAID HEALTH AND RELATIVELY CLOSE THERETO, A PLURALITY OF DIRECT FIRING RADIANT BURNERS IN SAID THERETO, A PLURALITY OF DIRECT FIRING RADIANT BURNERS IN SAID ROOF WITH CIRCULAR FLARING PORT BLOCK RADIANT HEATING SURFACES HAVING AXES NORMAL TO SAID HEARTH, SAID BURNERS BEING ARRANGED IN LONGITUDINAL COLUMNS WITH ONE SUCH COLUMN BEING IN ALIGNMENTS WITH BUT LONGITUDINALLT DISPLACED RELATION TO EACH SAID SKID RAIL SUPPORT RESPECTIVELY, SAID AXES IN EACH COLUMN BEING IN A VERTICAL PLANE PASSING THROUGH ITS RESPECTIVE SKID RAIL SUPPORT, SAID BURNERS FURTHER BEING ARRANGED IN LONGITUDINALLY SUCCESSIVE TRANSVERSE, ROWS, RADIANT BURNER BEING OPERABLE AT SELEC-
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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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |