US3201934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust-liquid heat exchanger for internal combustion engines
Assignee: Individual
•
Filing: 1962-08-06
•
Granted: 1965-08-24
•
Expires: 1982-08-06
Abstract
No abstract record available.
Inventors
- 👤 Harold W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:28
CPC Classifications
F; F02; F02G; F02G5/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN COMBINATIN, AND INTERLAN COMBUSTIN ENGINE EXHAUST MANIFOLD AND EXHAUST LINE, SAID LINE AND MANIFOLD HAVING SPACED APART TERMINAL FLANGES, A HEAT EXCHANGER UNIT IN THE SPACE BETWEEN SAID FLINGES, A HEAT EXCHANGER PRISING INNER AND OUTER PARTITIONS FORMING INNER AND OUTER PASSAGES FOR FLOWING HOT EXHAUST AND OTHER FLUID RESPECTIVELY IN HEAT EXCHANGE RELATION, SAID INNER PASSAGE EXTENDING ENDWISE OPENLY THROUGH SAID UNIT AND IN EXHAUST PASSING SERIES RELATION WITH THE MANIFOLD AND EXHAUST LINE, SAID UNIT INCLUDING HEAT TRANSFER FINS DEFINING GENERALLY ENDWISE EXTENDING PLANES WITHIN BOTH PASSAGES SO AS NOT TO RESITRICT THE ENDWISE FLOW OF EXHAUST AND SAID OTHER FLUID IN SAID INNER AND OUTER PASSAGES RESPECTIVELY, SAID INNER PASSAGE HAVING AN ENDWISE EXTENDING AXIS, THE FINS IN BOTH PASSAGES BEING SPACED ABOUT SAID AXIS AND HAVING OPENINGS TO PASS THE FLOW OF SAID OTHER FLUID
Claim 2
Dependent Claim
140 words
IN COMBINATIN, AND INTERLAN COMBUSTIN ENGINE EXHAUST MANIFOLD AND EXHAUST LINE, SAID LINE AND MANIFOLD HAVING SPACED APART TERMINAL FLANGES, A HEAT EXCHANGER UNIT IN THE SPACE BETWEEN SAID FLINGES, A HEAT EXCHANGER PRISING INNER AND OUTER PARTITIONS FORMING INNER AND OUTER PASSAGES FOR FLOWING HOT EXHAUST AND OTHER FLUID RESPECTIVELY IN HEAT EXCHANGE RELATION, SAID INNER PASSAGE EXTENDING ENDWISE OPENLY THROUGH SAID UNIT AND IN EXHAUST PASSING SERIES RELATION WITH THE MANIFOLD AND EXHAUST LINE, SAID UNIT INCLUDING HEAT TRANSFER FINS DEFINING GENERALLY ENDWISE EXTENDING PLANES WITHIN BOTH PASSAGES SO AS NOT TO RESITRICT THE ENDWISE FLOW OF EXHAUST AND SAID OTHER FLUID IN SAID INNER AND OUTER PASSAGES RESPECTIVELY, SAID INNER PASSAGE HAVING AN ENDWISE EXTENDING AXIS, THE FINS IN BOTH PASSAGES BEING SPACED ABOUT SAID AXIS AND HAVING OPENINGS TO PASS THE FLOW OF SAID OTHER FLUID
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |