US3120225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall furnace
Assignee: PEERLESS Manufacturing DIVISION
•
Filing: 1961-05-02
•
Granted: 1964-02-04
•
Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Marvin L Stark
- 👤 Frank C Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:09
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/002; F24C3/004; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/065; F24H3/08; F24H3/087; Y; Y10; Y10S; Y10S165/00; Y10S165/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
A WALL FURNACE COMPRISING, IN COMBINATION; A MAIN OUTER HOUSING H INCLUDING A BACK WALL 1 HAVING A FRESH AIR INTAKE OPENING 4, OPPOSITE OUTER SIDE WALLS 5, AND A TOP WALL 2 HAVING A ROOM SPACE AIR INLET 3; A VERTICALLY DISPOSED FRONT PANEL 6 SPACED FROM SAID BACK WALL 1, SAID FRONT PANEL HAVING AN UPPER ROOM SPACE AIR INLET 24 AND A LOWER ROOM SPACE AIR OUTLET 7; A FRESH AIR INTAKE FLUE F CONNECTED TO SAID BACK WALL 1 THROUGH SAID OPENING 4, AN INNER HEATER CASING H'' INCLUDING A FRESH AIR SEALING WALL 9 EXTENDING FROM THE TOP WALL 2 DOWNWARDLY TO A POINT SUBSTANTIALLY NEAR THE LOWER END OF THE BACK WALL 1 WHERE IT IS CLOSED C2, SAID FRESH AIR SEALING WALL HAVING A COMBUSTION BOX PORT 15A AND SPACED FROM SAID BACK WALL 1 TO PROVIDE A FRESH AIR CHAMBER COMMUNICATING WITH SAID FRESH AIR FLUE 4, PORTED INNER SIDE WALLS 11 AT OPPOSITE EDGES OF THE SEALING WALL 9 AND SPACED FROM THE INNER SURFACE OF THE OUTER SIDE WALLS 5 OF THE MAIN HOUSING TO PROVIDE WARM AIR REMOTE HEADERS 13 WITHIN AND AT EACH SIDE OF THE OUTER HOUSING H, SEALING MEANS C'' CONNECTING THE SEALING WALL 9 WITH THE BACK WALL 1 THEREBY TO COMPLETE THE FRESH AIR INTAKE CHAMBER TO SAID HEATER INTAKE PORT 15A; A BURNER 16,
Claim 2
Dependent Claim
231 words
A WALL FURNACE COMPRISING, IN COMBINATION; A MAIN OUTER HOUSING H INCLUDING A BACK WALL 1 HAVING A FRESH AIR INTAKE OPENING 4, OPPOSITE OUTER SIDE WALLS 5, AND A TOP WALL 2 HAVING A ROOM SPACE AIR INLET 3; A VERTICALLY DISPOSED FRONT PANEL 6 SPACED FROM SAID BACK WALL 1, SAID FRONT PANEL HAVING AN UPPER ROOM SPACE AIR INLET 24 AND A LOWER ROOM SPACE AIR OUTLET 7; A FRESH AIR INTAKE FLUE F CONNECTED TO SAID BACK WALL 1 THROUGH SAID OPENING 4, AN INNER HEATER CASING H'' INCLUDING A FRESH AIR SEALING WALL 9 EXTENDING FROM THE TOP WALL 2 DOWNWARDLY TO A POINT SUBSTANTIALLY NEAR THE LOWER END OF THE BACK WALL 1 WHERE IT IS CLOSED C2, SAID FRESH AIR SEALING WALL HAVING A COMBUSTION BOX PORT 15A AND SPACED FROM SAID BACK WALL 1 TO PROVIDE A FRESH AIR CHAMBER COMMUNICATING WITH SAID FRESH AIR FLUE 4, PORTED INNER SIDE WALLS 11 AT OPPOSITE EDGES OF THE SEALING WALL 9 AND SPACED FROM THE INNER SURFACE OF THE OUTER SIDE WALLS 5 OF THE MAIN HOUSING TO PROVIDE WARM AIR REMOTE HEADERS 13 WITHIN AND AT EACH SIDE OF THE OUTER HOUSING H, SEALING MEANS C'' CONNECTING THE SEALING WALL 9 WITH THE BACK WALL 1 THEREBY TO COMPLETE THE FRESH AIR INTAKE CHAMBER TO SAID HEATER INTAKE PORT 15A; A BURNER 16,
References Cited (Backward Citations)
US2361643A
Cited
US2470571A
Cited
US2532089A
Cited
US2506120A
Cited
US3056397A
Cited
US2942600A
Cited
US2966838A
Cited
US3064638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |