US3262489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Air and Liquid Systems Corp
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Filing: 1964-02-11
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Granted: 1966-07-26
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Expires: 1984-02-11
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Fritzberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:51
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0229; F22; F22B; F22B1/00; F22B1/02; F22B1/16; F22D; F22D1/00; F22D1/16; F28F9/0202; F28F9/0204; F28F9/0214; F28F9/0217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE METHOD OF TRANSFERRING HEAT FROM A FIRST FLUID TO A SECOND FLUID WHEREIN THE FIRST FLUID IS AT A TEMPERATURE IN EXCESS OF THAT RECOMMENDED FOR THE JOINDER OF METAL PARTS BY BRAZING, WHICH COMPRISES THE STEPS OF: (A) SUPPLYING THE FIRST FLUID TO A SUPPLY HEADER HAVING FIRST AND SECOND COMPARTMENTS SEPARATED BY AN APERTURED PARTITION; (B) DELIVERING THE FIRST FLUID TO HEAT TRANSFER TUBES IN COMMUNICATION WITH THE SECOND COMPARTMENT THROUGH A BRAZED JOINT AND A CONDENSATE HEADER REMOTE FROM THE SUPPLY HEADER, THE DELIVERY BEING ACCOMPLISHED THROUGH RELATIVELY SHORT DELIVERY TUBES HAVING A CONNECTION WITH THE PARTITION AS ITS SOLE SUPPORT, SO THAT THE BRAZED JOINT IS ISOLATED FROM THE HIGH TEMPERATURE FLUID AND HEAT FROM THE FIRST FLUID THAT FLOWS BY CONDUCTION TO THE BRAZED JOINT WILL PASS THROUGH STRUCTURE SUBJECT TO TEMPERATURES BELOW THE TEMPERATURE OF THE FIRST FLUID; AND (C) SUPPLYING A SOURCE OF FLUID TO BE HEATED OVER THE SURFACE OF THE CONNECTED PARTS.
Claim 2
Independent Claim
162 words
THE METHOD OF TRANSFERRING HEAT FROM A FIRST FLUID TO A SECOND FLUID WHEREIN THE FIRST FLUID IS AT A TEMPERATURE IN EXCESS OF THAT RECOMMENDED FOR THE JOINDER OF METAL PARTS BY BRAZING, WHICH COMPRISES THE STEPS OF: (A) SUPPLYING THE FIRST FLUID TO A SUPPLY HEADER HAVING FIRST AND SECOND COMPARTMENTS SEPARATED BY AN APERTURED PARTITION; (B) DELIVERING THE FIRST FLUID TO HEAT TRANSFER TUBES IN COMMUNICATION WITH THE SECOND COMPARTMENT THROUGH A BRAZED JOINT AND A CONDENSATE HEADER REMOTE FROM THE SUPPLY HEADER, THE DELIVERY BEING ACCOMPLISHED THROUGH RELATIVELY SHORT DELIVERY TUBES HAVING A CONNECTION WITH THE PARTITION AS ITS SOLE SUPPORT, SO THAT THE BRAZED JOINT IS ISOLATED FROM THE HIGH TEMPERATURE FLUID AND HEAT FROM THE FIRST FLUID THAT FLOWS BY CONDUCTION TO THE BRAZED JOINT WILL PASS THROUGH STRUCTURE SUBJECT TO TEMPERATURES BELOW THE TEMPERATURE OF THE FIRST FLUID; AND (C) SUPPLYING A SOURCE OF FLUID TO BE HEATED OVER THE SURFACE OF THE CONNECTED PARTS.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |