US3109423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fired tank heater seal
Assignee: Standard Oil Co
•
Filing: 1962-06-28
•
Granted: 1963-11-05
•
Expires: 1982-06-28
Abstract
No abstract record available.
Inventors
- 👤 John J Reagan
- 👤 Marvin L Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:06
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/18; F24H9/1809; F24H9/1832; F24H9/1836; C; C10; C10C; C10C3/00; C10C3/10; C10C3/12; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN COMBINATION WITH A VESSEL; HEATER MEANS THEREFOR COMPRISING AT LEAST ONE GAS BURNER AT THE EXTERIOR OF THE VESSEL, AT LEAST ONE FIRETUBE EXTENDING THROUGH THE VESSEL WITH AN OPEN END THEREOF IN SPACED OPPOSITION TO SAID BURNER, AND TUBE SEALING MEANS HAVING LEAF SECTIONS NORMALLY SEPARATED MORE THAN THE SPACING OF SAID FIRETUBE END FROM SAID BURNER AND TUBE END UPON FORCING OF SAID BETWEEN SAID BURNER AND TUBE END UPON FORCING OF SAID SECTIONS TOGETHER AND THUS HELD BY SPRING CONTACT WITH THE SAME, THE SECTION OF THE SEALING MEANS OVERLYING THE END OF SAID FIRETUBE BEING IMPERFORATE AND CLOSING SUCH END AGAINST ADMITTANCE OF AIR.
Claim 2
Dependent Claim
109 words
IN COMBINATION WITH A VESSEL; HEATER MEANS THEREFOR COMPRISING AT LEAST ONE GAS BURNER AT THE EXTERIOR OF THE VESSEL, AT LEAST ONE FIRETUBE EXTENDING THROUGH THE VESSEL WITH AN OPEN END THEREOF IN SPACED OPPOSITION TO SAID BURNER, AND TUBE SEALING MEANS HAVING LEAF SECTIONS NORMALLY SEPARATED MORE THAN THE SPACING OF SAID FIRETUBE END FROM SAID BURNER AND TUBE END UPON FORCING OF SAID BETWEEN SAID BURNER AND TUBE END UPON FORCING OF SAID SECTIONS TOGETHER AND THUS HELD BY SPRING CONTACT WITH THE SAME, THE SECTION OF THE SEALING MEANS OVERLYING THE END OF SAID FIRETUBE BEING IMPERFORATE AND CLOSING SUCH END AGAINST ADMITTANCE OF AIR.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |