US2744733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange apparatus
Assignee: Foster Wheeler Inc
•
Filing: 1952-05-29
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Granted: 1956-05-08
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Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Allen H Howes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:33
CPC Classifications
F; F22; F22B; F22B31/00; F22B31/08; Y; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/101; Y10S165/104; Y10S165/106; Y10S165/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
A HEAT EXCHANGER FOR EXCHANGING HEAT BETWEEN FLUIDS FROM A SOURCE OF HEATING FLUID AND A SOURCE OF FLUID TO BE HEATED, SAID HEAT EXCHANGER COMPRISING AT LEAST TWO SECTIONS CONNECTED FOR PROVIDING A FLUID PATH FOR THE FLUID TO BE HEATED IN SERIES, A FIRST SECTION HAVING A FIRST INLET CONNECTED TO THE SOURCE OF FLUID TO BE HEATED AND HAVING A FIRST OUTLET FOR DISCHARGING THE FLUID TO BE HEATED FROM SAID FIRST SECTION, A SECOND SECTION HAVING A SECOND INLET CONNECTED TO SAID OUTLET OF SAID FIRST SECTION TO RECEIVE FLUID TO BE HEATED FROM SAID FIRST SECTION AFTER PASSAGE THROUGH THE ENTIRE FIRST SECTION AND HAVING A SECOND OUTLET FOR DISCHARGING SAID FLUID TO BE HEATED FROM SAID SECOND SECTION AFTER PASSAGE OF THE FLUID TO BE HEATED THROUGH THE LATTER, HEAT TRANSFER MEANS IN SAID FIRST AND SAID SECOND SECTIONS FOR CONDUCTING HEATING FLUID THROUGH THEIR RESPECTIVE SECTIONS IN HEAT EXCHANGE RELATIONSHIP WITH SAID FLUID TO BE HEATED, THE HEAT TRANSFER MEANS IN SAID FIRST SECTION HAVING AN INITIAL PORTION THEREOF THROUGH WHICH HEATING FLUID FIRST PASSES IN SAID FIRST SECTION AND ARRANGED IN THE LATTER IN THE PATH OF FLOW OF THE FLUID TO BE HEATED AS IT INITIALLY ENTERS THE FIRST SECTION THROUGH SAID FIRST INLET, SAID HEAT TRANSFER MEANS IN WHICH SAID FIRST SECTION HAVING A THIRD INLET COMMUNICATING WITH SAID SOURCE OF HEATING
Claim 2
Dependent Claim
232 words
A HEAT EXCHANGER FOR EXCHANGING HEAT BETWEEN FLUIDS FROM A SOURCE OF HEATING FLUID AND A SOURCE OF FLUID TO BE HEATED, SAID HEAT EXCHANGER COMPRISING AT LEAST TWO SECTIONS CONNECTED FOR PROVIDING A FLUID PATH FOR THE FLUID TO BE HEATED IN SERIES, A FIRST SECTION HAVING A FIRST INLET CONNECTED TO THE SOURCE OF FLUID TO BE HEATED AND HAVING A FIRST OUTLET FOR DISCHARGING THE FLUID TO BE HEATED FROM SAID FIRST SECTION, A SECOND SECTION HAVING A SECOND INLET CONNECTED TO SAID OUTLET OF SAID FIRST SECTION TO RECEIVE FLUID TO BE HEATED FROM SAID FIRST SECTION AFTER PASSAGE THROUGH THE ENTIRE FIRST SECTION AND HAVING A SECOND OUTLET FOR DISCHARGING SAID FLUID TO BE HEATED FROM SAID SECOND SECTION AFTER PASSAGE OF THE FLUID TO BE HEATED THROUGH THE LATTER, HEAT TRANSFER MEANS IN SAID FIRST AND SAID SECOND SECTIONS FOR CONDUCTING HEATING FLUID THROUGH THEIR RESPECTIVE SECTIONS IN HEAT EXCHANGE RELATIONSHIP WITH SAID FLUID TO BE HEATED, THE HEAT TRANSFER MEANS IN SAID FIRST SECTION HAVING AN INITIAL PORTION THEREOF THROUGH WHICH HEATING FLUID FIRST PASSES IN SAID FIRST SECTION AND ARRANGED IN THE LATTER IN THE PATH OF FLOW OF THE FLUID TO BE HEATED AS IT INITIALLY ENTERS THE FIRST SECTION THROUGH SAID FIRST INLET, SAID HEAT TRANSFER MEANS IN WHICH SAID FIRST SECTION HAVING A THIRD INLET COMMUNICATING WITH SAID SOURCE OF HEATING
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |