Patent US3115335A successfully refreshed from Google Patents.
US3115335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace rolls
Assignee: Blaw Knox Co
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Filing: 1963-07-26
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Granted: 1963-12-24
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Expires: 1983-07-26
Abstract
No abstract record available.
Inventors
- 👤 Martin N Ornitz
- 👤 Estella T James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:22
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/026; C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/181; C03B35/183; C03B35/184; C03B35/185; F16; F16C; F16C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FURNACE CONVEYOR ROLL ADAPTED TO CARRY A COOLANT COMPRISING A HOLLOW-CYLINDRICAL BODY HAVING INLET AND OUTLET PORTS IN OPPOSITE ENDS THEREOF, AN AXIALLY EXTENDING TUBE IMPERFORATE INTERMEDIATE THE ENDS THEREOF IN SAID BODY SPACED FROM THE INTERNAL WALLS THEREOF, FORMING AN ANNULAR PASSAGE THEREBETWEEN THROUGH WHICH COOLANT IS PASSED, MEANS IN SAID TUBE CLOSING SAID TUBE AGAINST PASSAGE OF FLUID THERETHROUGH, CONNECTING MEANS BETWEEN SAID TUBE AND INTERNAL WALL OF THE BODY HOLDING SAID TUBE THEREIN, PASSAGEWAYS CONNECTING THE INLET AND OUTLET PORTS TO THE ANNULAR PASSAGE BETWEEN THE BODY AND TUBE, AND A LOAD BEARING SURFACE ON SAID BODY.
Claim 2
Dependent Claim
101 words
A FURNACE CONVEYOR ROLL ADAPTED TO CARRY A COOLANT COMPRISING A HOLLOW-CYLINDRICAL BODY HAVING INLET AND OUTLET PORTS IN OPPOSITE ENDS THEREOF, AN AXIALLY EXTENDING TUBE IMPERFORATE INTERMEDIATE THE ENDS THEREOF IN SAID BODY SPACED FROM THE INTERNAL WALLS THEREOF, FORMING AN ANNULAR PASSAGE THEREBETWEEN THROUGH WHICH COOLANT IS PASSED, MEANS IN SAID TUBE CLOSING SAID TUBE AGAINST PASSAGE OF FLUID THERETHROUGH, CONNECTING MEANS BETWEEN SAID TUBE AND INTERNAL WALL OF THE BODY HOLDING SAID TUBE THEREIN, PASSAGEWAYS CONNECTING THE INLET AND OUTLET PORTS TO THE ANNULAR PASSAGE BETWEEN THE BODY AND TUBE, AND A LOAD BEARING SURFACE ON SAID BODY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |