US3236212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boiler
Assignee: Individual
•
Filing: 1963-05-09
•
Granted: 1966-02-22
•
Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Ospelt Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/48; F22; F22B; F22B13/00; F22B33/00; F22B33/02; F22B33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A BOILER WHICH INCLUDES: A SUBSTANTIALLY HORIZONTALLY DISPOSED FIRST WATER JACKET CONFINING A COMBUSTION CHAMBER FOR COOPERATION WITH A BURNER AND HAVING A SUBSTANTIALLY CYLINDRICAL OUTER WALL, AT LEAST A SECOND SUBSTANTIALLY HORIZONTAL DISPOSED WATER JACKET SURROUNDING SAID FIRST WATER JACKET IN SPACED RELATIONSHIP THERTO AND COMMUNICATING WITH SAID FIRST WATER JACKET WHILE HAVING A SUBSTANTIALLY CYLINDRICAL INNER WALL HAVING ITS LONGITUDINAL AXIS OFFSET WITH REGARD TO THE LONGITUDINAL AXIS OF THE OUTER WALL OF SAID FIRST WATER JACKET SO THAT THE ADJACENT WALLS OF SAID TWO WATER JACKETS FORM WITH EACH OTHER AN ANNULAR CHAMBER OF CRESCENT-SHAPED CROSS SECTION, SAID FIRST WATER JACKET HAVING AN AXIALLY EXTENDING DISCHARGE OPENING FOR THE PASSAGE OF COMBUSTION GASES FROM SAID COMBUSTION CHAMBER INTO SAID ANNULAR CHAMBER, SAID DISCHARGE OPENING BEING LOCATED AT LEAST NEAR THAT PORTION OF SAID ANNULAR CHAMBER WHICH HAS THE GREATEST INSIDE WIDTH, SAID ANNULAR CHAMBER HAVING OUTLET MEANS FOR THE COMBUSTION GASES WHICH IS OFFSET CIRCUMFERENTIALLY WITH REGARD TO SAID DISCHARGE OPENING BY AN ANGLE OF BETWEEN 270 AND 360*, AND PARTITION MEANS PROVIDED IN SAID ANNULAR CHAMBER AND LOCATED BETWEEN SAID DISCHARGE OPENING AND SAID OUTLET MEANS.
Claim 2
Dependent Claim
190 words
A BOILER WHICH INCLUDES: A SUBSTANTIALLY HORIZONTALLY DISPOSED FIRST WATER JACKET CONFINING A COMBUSTION CHAMBER FOR COOPERATION WITH A BURNER AND HAVING A SUBSTANTIALLY CYLINDRICAL OUTER WALL, AT LEAST A SECOND SUBSTANTIALLY HORIZONTAL DISPOSED WATER JACKET SURROUNDING SAID FIRST WATER JACKET IN SPACED RELATIONSHIP THERTO AND COMMUNICATING WITH SAID FIRST WATER JACKET WHILE HAVING A SUBSTANTIALLY CYLINDRICAL INNER WALL HAVING ITS LONGITUDINAL AXIS OFFSET WITH REGARD TO THE LONGITUDINAL AXIS OF THE OUTER WALL OF SAID FIRST WATER JACKET SO THAT THE ADJACENT WALLS OF SAID TWO WATER JACKETS FORM WITH EACH OTHER AN ANNULAR CHAMBER OF CRESCENT-SHAPED CROSS SECTION, SAID FIRST WATER JACKET HAVING AN AXIALLY EXTENDING DISCHARGE OPENING FOR THE PASSAGE OF COMBUSTION GASES FROM SAID COMBUSTION CHAMBER INTO SAID ANNULAR CHAMBER, SAID DISCHARGE OPENING BEING LOCATED AT LEAST NEAR THAT PORTION OF SAID ANNULAR CHAMBER WHICH HAS THE GREATEST INSIDE WIDTH, SAID ANNULAR CHAMBER HAVING OUTLET MEANS FOR THE COMBUSTION GASES WHICH IS OFFSET CIRCUMFERENTIALLY WITH REGARD TO SAID DISCHARGE OPENING BY AN ANGLE OF BETWEEN 270 AND 360*, AND PARTITION MEANS PROVIDED IN SAID ANNULAR CHAMBER AND LOCATED BETWEEN SAID DISCHARGE OPENING AND SAID OUTLET 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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |