US3074479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange apparatus
Assignee: Individual
•
Filing: 1960-01-15
•
Granted: 1963-01-22
•
Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
- 👤 Louis F Giauque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:16
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/08; F24D19/081; Y; Y10; Y10S; Y10S165/00; Y10S165/184; Y10S165/217; Y10S165/221; Y10S165/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
APPARATUS FOR PASSING STEAM IN HEAT EXCHANGE RELATIONSHIP WITH AIR HAVING AN INITIAL TEMPERATURE BELOW THE FREEZING POINT OF WATER, SAID APPARATUS COMPRISING A PLURALITY OF VERTICALLY EXTENDING HEAT EXCHANGER TUBES ARRANGED IN FIRST AND SECOND ROWS, THE SECOND ROW BEING ARRANGED BEHIND THE FIRST ROW, MEANS TO PROPEL A STEAM OF AIR SUBSTANTIALLY HORIZONTALLY ACROSS THE EXTERIOR SURFACES OF SAID TUBES SO THAT THE AIR PASSES ACROSS THE TUBES IN THE FIRST ROW BEFORE PASSING ACROSS THE TUBES IN THE SECOND ROW, MEANS TO SUPPLY STEAM TO THE TOP END OF EACH OF SAID TUBES FOR FLOW THROUGH THE TUBES, SEPARATE FIRST AND SECOND CONDENSATE HEADERS, THE FIRST HEADER BEING CONNECTED TO THE BOTTOMS OF THE TUBES OF THE FIRST ROW AND ISOLATE FROM THE SECOND HEADER WHICH IS CONNECTED TO THE BOTTOMS OF THE TUBES OF THE SECOND ROW, SEPARATE FIRST AND SECOND TRAPS TO PREVENT ESCAPE OF STEAM BUT TO DISCHARGE CONDENSATE, FIRST CONDUIT MEANS INTERCONNECTING THE FIRST HEADER AND THE FIRST TRAP AND SECOND CONDUIT MEANS ISOLATED FROM THE FIRST CONDUIT MEANS AND INTERCONNECTING THE SECOND HEADER AND THE SECOND TRAP.
Claim 2
Dependent Claim
185 words
APPARATUS FOR PASSING STEAM IN HEAT EXCHANGE RELATIONSHIP WITH AIR HAVING AN INITIAL TEMPERATURE BELOW THE FREEZING POINT OF WATER, SAID APPARATUS COMPRISING A PLURALITY OF VERTICALLY EXTENDING HEAT EXCHANGER TUBES ARRANGED IN FIRST AND SECOND ROWS, THE SECOND ROW BEING ARRANGED BEHIND THE FIRST ROW, MEANS TO PROPEL A STEAM OF AIR SUBSTANTIALLY HORIZONTALLY ACROSS THE EXTERIOR SURFACES OF SAID TUBES SO THAT THE AIR PASSES ACROSS THE TUBES IN THE FIRST ROW BEFORE PASSING ACROSS THE TUBES IN THE SECOND ROW, MEANS TO SUPPLY STEAM TO THE TOP END OF EACH OF SAID TUBES FOR FLOW THROUGH THE TUBES, SEPARATE FIRST AND SECOND CONDENSATE HEADERS, THE FIRST HEADER BEING CONNECTED TO THE BOTTOMS OF THE TUBES OF THE FIRST ROW AND ISOLATE FROM THE SECOND HEADER WHICH IS CONNECTED TO THE BOTTOMS OF THE TUBES OF THE SECOND ROW, SEPARATE FIRST AND SECOND TRAPS TO PREVENT ESCAPE OF STEAM BUT TO DISCHARGE CONDENSATE, FIRST CONDUIT MEANS INTERCONNECTING THE FIRST HEADER AND THE FIRST TRAP AND SECOND CONDUIT MEANS ISOLATED FROM THE FIRST CONDUIT MEANS AND INTERCONNECTING THE SECOND HEADER AND THE SECOND TRAP.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |