Patent US3274977A successfully refreshed from Google Patents.
US3274977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement of a buckstay system for wide furnace steam generators
Assignee: Combustion Engineering Inc
•
Filing: 1964-11-12
•
Granted: 1966-09-27
•
Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Earl K Rickard
- 👤 Schroeder Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:32
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A VAPOR GENERATOR HAVING A FURNACE WITH UPRIGHT, RECTANGULARLY DISPOSED TUBULOUS SIDE WALLS; A TUBULOUS DIVISION WALL DIVIDING SAID FURNACE INTO SPACED CHAMBERS; A FURNACE STIFFENING SYSTEM SURROUNDING SAID FURNACE INCLUDING HORIZONTALLY ARRANGED BUCKSTAY MEANS SECURED TO AND SUPPORTED ON THE TUBES OF SAID SIDE WALLS EXTERNALLY OF SAID SURFACE; MEANS FOR REDUCING THE UPSUPPORTED SPAN OF SAID BUCKSTAY MEANS INCLUDING TIE MEANS POSITIONED INTERMEDIATE THE ENDS OF SAID BUCKSTAY MEANS, SAID TIE MEANS EXTENDING THROUGH SAID FURNACE PARALLEL TO SAID DIVISION WALL BETWEEN A PAIR OF OPPOSED SIDE WALLS; OPENINGS IN SAID SIDE WALLS PERMITTING PASSAGE OF SAID TIE MEANS, MEANS EXTERNAL OF SAID FURNACE SECURING THE OPPOSITE ENDS OF SAID TIE MEANS TO SAID BUCKSTAY MEANS; AND THE TUBES OF SAID DIVISION WALL ENCLOSING SAID TIE MEANS FOR COOLING SAID TIE MEANS.
Claim 2
Dependent Claim
134 words
A VAPOR GENERATOR HAVING A FURNACE WITH UPRIGHT, RECTANGULARLY DISPOSED TUBULOUS SIDE WALLS; A TUBULOUS DIVISION WALL DIVIDING SAID FURNACE INTO SPACED CHAMBERS; A FURNACE STIFFENING SYSTEM SURROUNDING SAID FURNACE INCLUDING HORIZONTALLY ARRANGED BUCKSTAY MEANS SECURED TO AND SUPPORTED ON THE TUBES OF SAID SIDE WALLS EXTERNALLY OF SAID SURFACE; MEANS FOR REDUCING THE UPSUPPORTED SPAN OF SAID BUCKSTAY MEANS INCLUDING TIE MEANS POSITIONED INTERMEDIATE THE ENDS OF SAID BUCKSTAY MEANS, SAID TIE MEANS EXTENDING THROUGH SAID FURNACE PARALLEL TO SAID DIVISION WALL BETWEEN A PAIR OF OPPOSED SIDE WALLS; OPENINGS IN SAID SIDE WALLS PERMITTING PASSAGE OF SAID TIE MEANS, MEANS EXTERNAL OF SAID FURNACE SECURING THE OPPOSITE ENDS OF SAID TIE MEANS TO SAID BUCKSTAY MEANS; AND THE TUBES OF SAID DIVISION WALL ENCLOSING SAID TIE MEANS FOR COOLING SAID TIE MEANS.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |