US3103346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace conveyor roll
Assignee: Selas Corp of America
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Filing: 1961-12-29
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Granted: 1963-09-10
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Robert E Buckholdt
- 👤 Jr Eugene A Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:02
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/026; C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/183; C03B35/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A FURNACE CONVEYOR ROLL COMPRISING IN COMBINATION: A TUBULAR SUPPORTING SHAFT ADAPTED TO EXTEND ACROSS A FURNACE AND HAVING PORTIONS ON EACH END TO BE RECEIVED IN BEARINGS, MEANS FORMING AN ANNULAR CHAMBER WITHIN SAID SHAFT AND EXTENDING AXIALLY THEREOF, A TUBE WRAPPED HELICALLY AROUND SAID SHAFT WITH THE HELIX ADAPTED FOR EXTENDING AT LEAST THE WIDTH OF THE WORK TO BE SUPPORTED THEREON, ONE END OF SAID TUBE EXTENDING INTO SAID ANNULAR CHAMBER AND THE OTHER END OF SAID TUBE SERVING AS AN INLET AND EXTENDING THROUGH AND BEYOND ONE END OF SAID SHAFT, A LOAD SUPPORTING RIB ATTACHED TO AND PROJECTING RADIALLY FROM SAID TUBE, A REFRACTORY MATERIAL COVERING SAID SHAFT AND TUBE WITH A PORTION OF SAID RIB EXTENDING BEYOND SAID MATERIAL, SAID ANNULAR CHAMBER BEING OPEN AT THE END OF SAID SHAFT THROUGH WHICH SAID OTHER END OF SAID TUBE EXTENDS, AND MEANS AT SAID LAST MENTIONED END OF SAID SHAFT TO COLLECT A COOLING FLUID FLOWING FROM SAID END.
Claim 2
Dependent Claim
164 words
A FURNACE CONVEYOR ROLL COMPRISING IN COMBINATION: A TUBULAR SUPPORTING SHAFT ADAPTED TO EXTEND ACROSS A FURNACE AND HAVING PORTIONS ON EACH END TO BE RECEIVED IN BEARINGS, MEANS FORMING AN ANNULAR CHAMBER WITHIN SAID SHAFT AND EXTENDING AXIALLY THEREOF, A TUBE WRAPPED HELICALLY AROUND SAID SHAFT WITH THE HELIX ADAPTED FOR EXTENDING AT LEAST THE WIDTH OF THE WORK TO BE SUPPORTED THEREON, ONE END OF SAID TUBE EXTENDING INTO SAID ANNULAR CHAMBER AND THE OTHER END OF SAID TUBE SERVING AS AN INLET AND EXTENDING THROUGH AND BEYOND ONE END OF SAID SHAFT, A LOAD SUPPORTING RIB ATTACHED TO AND PROJECTING RADIALLY FROM SAID TUBE, A REFRACTORY MATERIAL COVERING SAID SHAFT AND TUBE WITH A PORTION OF SAID RIB EXTENDING BEYOND SAID MATERIAL, SAID ANNULAR CHAMBER BEING OPEN AT THE END OF SAID SHAFT THROUGH WHICH SAID OTHER END OF SAID TUBE EXTENDS, AND MEANS AT SAID LAST MENTIONED END OF SAID SHAFT TO COLLECT A COOLING FLUID FLOWING FROM SAID END.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |