Patent US3185457A successfully refreshed from Google Patents.
US3185457A
Expired / Lapsed
US
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Method of and apparatus for heating fluids
Assignee: Babcock and Wilcox Co
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Filing: 1961-03-09
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Granted: 1965-05-25
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Expires: 1981-03-09
Abstract
No abstract record available.
Inventors
- 👤 Richard H Boll
- 👤 Edward A Pirsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:34
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/04; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF HEATING A GASEOUS FLUID TO A HIGH TEMPERATURE WHICH COMPRISES THE STEPS OF HEATING A GRANULAR SOLID WHILE SUBSTANTIALLY IN GASEOUS FLUID SUSPENSION IN A SOLIDS HEATING ZONE TO A LIQUEFIED TEMPERATURE, PASSING SAID LIQUEFIED SOLID TO A SEPARATE GASEOUS FLUID HEATING ZONE, INTRODUCING SAID LIQUEFIED SOLID INTO SAID GASEOUS FLUID HEATING ZONE TO HEAT SAID FLUID AND TO SOLIDIFY SAID LIQUEFIED SOLIDS TO GRANULAR FORM WHILE IN
Claim 2
Independent Claim
71 words
THE METHOD OF HEATING A GASEOUS FLUID TO A HIGH TEMPERATURE WHICH COMPRISES THE STEPS OF HEATING A GRANULAR SOLID WHILE SUBSTANTIALLY IN GASEOUS FLUID SUSPENSION IN A SOLIDS HEATING ZONE TO A LIQUEFIED TEMPERATURE, PASSING SAID LIQUEFIED SOLID TO A SEPARATE GASEOUS FLUID HEATING ZONE, INTRODUCING SAID LIQUEFIED SOLID INTO SAID GASEOUS FLUID HEATING ZONE TO HEAT SAID FLUID AND TO SOLIDIFY SAID LIQUEFIED SOLIDS TO GRANULAR FORM WHILE IN
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |