US3115336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace construction
Assignee: Individual
•
Filing: 1961-06-29
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Granted: 1963-12-24
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Levi S Longenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:52
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
IN A FURNACE THAT IS TO BE CHARGED WITH SCRAP MATERIAL FOR HIGH TEMPERATURE MELTING, A SUPPORT FRAMEWORK FOR THE FURNACE HAVING ROOF AND WALL PARTS, SAID SUPPORT FRAMEWORK HAVING LOAD-CARRYING MEMBERS THEREALONG, REFRACTORY MEANS SUSPENDED FROM THE LOAD-CARRYING MEMBERS TO DEFINE AN INNER LINING FOR THE ROOF AND WALL PARTS, SAID REFRACTORY MEANS FOR THE ROOF AND WALL PARTS HAVING AN OPEN PORTION AT AN UPPER CORNER PORTION OF THE FURNACE DEFINING A FEED OPENING THEREAT, A SWING DOOR HAVING A UNITARY FRAME PROVIDED WITH LOAD-CARRYING MEMBERS THEREALONG, REFRACTORY BLOCKS SUSPENDED FROM THE LOADCARRYING MEMBERS OF SAID DOOR TO DEFINE A UNITARY ROOF AND WALL CLOSURE FOR THE FEED OPENING, RIGID SUPPORT MEMBERS DEFINING A POSITIONING AXIS ABOVE THE UPPER CORNER PORTION OF THE FURNACE AND ABOUT WHICH SAID SWING DOOR IS PIVOTALLY MOUNTED, AND MEANS COOPERATING WITH SAID SWING DOOR TO FULLY PIVOTALLY-SWING IT ABOUT SAID POSITIONING AXIS FROM A CLOSED POSITION WITH RESPECT TO THE FEED OPENING IN ALIGNMENT WITH SAID OPEN PORTION OF SAID ROOF AND WALL PARTS TO AN INWARDLY-DECLINING OPEN POSITION WITH RESPECT TO SAID OPEN PORTION AND WITHIN THE FEED OPENING AND OUTWARDLY OF THE WALL PART.
Claim 2
Dependent Claim
194 words
IN A FURNACE THAT IS TO BE CHARGED WITH SCRAP MATERIAL FOR HIGH TEMPERATURE MELTING, A SUPPORT FRAMEWORK FOR THE FURNACE HAVING ROOF AND WALL PARTS, SAID SUPPORT FRAMEWORK HAVING LOAD-CARRYING MEMBERS THEREALONG, REFRACTORY MEANS SUSPENDED FROM THE LOAD-CARRYING MEMBERS TO DEFINE AN INNER LINING FOR THE ROOF AND WALL PARTS, SAID REFRACTORY MEANS FOR THE ROOF AND WALL PARTS HAVING AN OPEN PORTION AT AN UPPER CORNER PORTION OF THE FURNACE DEFINING A FEED OPENING THEREAT, A SWING DOOR HAVING A UNITARY FRAME PROVIDED WITH LOAD-CARRYING MEMBERS THEREALONG, REFRACTORY BLOCKS SUSPENDED FROM THE LOADCARRYING MEMBERS OF SAID DOOR TO DEFINE A UNITARY ROOF AND WALL CLOSURE FOR THE FEED OPENING, RIGID SUPPORT MEMBERS DEFINING A POSITIONING AXIS ABOVE THE UPPER CORNER PORTION OF THE FURNACE AND ABOUT WHICH SAID SWING DOOR IS PIVOTALLY MOUNTED, AND MEANS COOPERATING WITH SAID SWING DOOR TO FULLY PIVOTALLY-SWING IT ABOUT SAID POSITIONING AXIS FROM A CLOSED POSITION WITH RESPECT TO THE FEED OPENING IN ALIGNMENT WITH SAID OPEN PORTION OF SAID ROOF AND WALL PARTS TO AN INWARDLY-DECLINING OPEN POSITION WITH RESPECT TO SAID OPEN PORTION AND WITHIN THE FEED OPENING AND OUTWARDLY OF THE WALL PART.
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 |