US3258510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lining furnaces and like vessels
Assignee: Cullinan Refractories Ltd
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Filing: 1963-10-07
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Granted: 1966-06-28
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Cullinan Douglas Major
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:56
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/16; F27D1/1621; F23; F23M; F23M5/00; F23M2700/00; F23M2700/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF LINING A VESSEL WITH REFRACTORY BLOCKS HAVING SIDE FACES, WHICH INCLUDES THE STEPS OF PRE-ASSEMBLING THE BLOCKS IN ANNULAR RING FORMATION SUCH THAT THE SIDE FACES OF ADJACENT BLOCKS ARE IN ABUTMENT, OF PROVIDING A SUSPENSION FRAME OVER THE PRE-ASSEMBLED BLOCKS, OF CONNECTING THE BLOCKS RIGIDLY TO THE UNDERSIDE OF THE SUSPENSION FRAME, AND OF LOWERING THE SUSPENSION FRAME AND ASSEMBLED BLOCKS INTO POSITION IN THE VESSEL.
Claim 2
Independent Claim
70 words
A METHOD OF LINING A VESSEL WITH REFRACTORY BLOCKS HAVING SIDE FACES, WHICH INCLUDES THE STEPS OF PRE-ASSEMBLING THE BLOCKS IN ANNULAR RING FORMATION SUCH THAT THE SIDE FACES OF ADJACENT BLOCKS ARE IN ABUTMENT, OF PROVIDING A SUSPENSION FRAME OVER THE PRE-ASSEMBLED BLOCKS, OF CONNECTING THE BLOCKS RIGIDLY TO THE UNDERSIDE OF THE SUSPENSION FRAME, AND OF LOWERING THE SUSPENSION FRAME AND ASSEMBLED BLOCKS INTO POSITION IN THE VESSEL.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |