Patent US2873231A successfully refreshed from Google Patents.
US2873231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerators of coke ovens
Assignee: Simon Carves Ltd
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Filing: 1955-11-02
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Granted: 1959-02-10
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Expires: 1975-11-02
Abstract
No abstract record available.
Inventors
- 👤 Hiby Julius Walther
- 👤 Hiby Friedrich Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:50
CPC Classifications
C; C10; C10B; C10B5/00; C10B5/10; C10B5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A REGENERATOR, FOR USE IN A COKE OVEN, HAVING A REGENERATIVE SPACE, VERTICALLY EXTENDIG WALLS BENEATH SAID REGENERATIVE SPACE PROVIDING A BUS FLUE, AND A LONGITUDINALLY EXTENDING PARTITION DIVIDING SAID BUS FLUE INTO AN UPPER PART AND A LOWER PART, SAID PARTITION COMPRISING A PLURALITY OF SPACED, STEPWISE ALIGNED, BAR-SHAPED MEMBERS, EACH OF SAID BAR-SHAPED MEMBERS HAVING AN OUTWARDLY CURVED LEADING EDGE AND AN INWARDLY CURVED TRAILING EDGE TO PROVIDE A MULITIPLICITY OF CURVED DUCTS BETWEN SAID BAR-SHAPED MEMBERS, THE LOWER PART OF SAID BUS FLUE HAVING A FLOOR INCLINED WITH RESPECT TO SAID PARTITION SO THAT THE CROSS SECTIONAL AREA OF SAID LOWER PART IS DECREASED AT THE LOWER OPENING OF EACH OF SAID CURVED DUCTS BY SUBSTANTIALLY THE CROSOS SECTIONAL AREA OF SAID OPENING.
Claim 2
Dependent Claim
126 words
A REGENERATOR, FOR USE IN A COKE OVEN, HAVING A REGENERATIVE SPACE, VERTICALLY EXTENDIG WALLS BENEATH SAID REGENERATIVE SPACE PROVIDING A BUS FLUE, AND A LONGITUDINALLY EXTENDING PARTITION DIVIDING SAID BUS FLUE INTO AN UPPER PART AND A LOWER PART, SAID PARTITION COMPRISING A PLURALITY OF SPACED, STEPWISE ALIGNED, BAR-SHAPED MEMBERS, EACH OF SAID BAR-SHAPED MEMBERS HAVING AN OUTWARDLY CURVED LEADING EDGE AND AN INWARDLY CURVED TRAILING EDGE TO PROVIDE A MULITIPLICITY OF CURVED DUCTS BETWEN SAID BAR-SHAPED MEMBERS, THE LOWER PART OF SAID BUS FLUE HAVING A FLOOR INCLINED WITH RESPECT TO SAID PARTITION SO THAT THE CROSS SECTIONAL AREA OF SAID LOWER PART IS DECREASED AT THE LOWER OPENING OF EACH OF SAID CURVED DUCTS BY SUBSTANTIALLY THE CROSOS SECTIONAL AREA OF SAID OPENING.
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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |