Patent US3228461A successfully refreshed from Google Patents.
US3228461A
Expired / Lapsed
US
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Heat exchanger with header tanks
Assignee: Motors Liquidation Co
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Filing: 1964-04-22
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Granted: 1966-01-11
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Seekins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:59
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0236; F28F9/0239; F28F1/00; F28F1/10; F28F1/12; F28F1/126; F28F9/001; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/053; Y10S165/054; Y10S165/055; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49396
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
160 words
A HEAT EXCHANGER OF THE AUTOMOBILE RADIATOR TYPE, SAID EXCHANGER COMPRISING TWO ELONGATED AND PARALLEL HEADER TANKS AND A STRUCTURALLY CONTINUOUS CORE EXTENDING APPROXIMAELY FROM ONE END TO THE OTHER OF EACH TANK, EACH OF SAID TANKS INCLUDING A TUBE SHEET, SAID CORE DEFINING AIR PASSAGES AND INCLUDING TUBES COOPERATING WITH AND CONNECTING THE TANK TUBE SHEETS FOR ENCLOSING A LIQUID, EACH OF SAID TANKS HAVING TWO COMPONENTS INCLUDING ITS TUBE SHEETS, ONE OF SAID TWO COMPONENTS OF EACH OF SAID TANKS HAVING A FLANGE AT EACH END, SAID FLANGE EXTENDING TOWARD THE OTHER TANK AND HAVING AN INNER SURFACE FACING TOWARD THE EXCHANGER INTERIOR, RIGID SIDE MEMBERS CONTACTING SAID CORE AND COOPERATING WITH SAID TANKS IN SURROUNDING SAID CORE AND SAID PASSAGES, AND AN OUTWARDLY FACING SURFACE ON EACH END OF EACH OF SAID RIGID SIDE MEMBERS SLIDABLY ENGAGING THE CORRESPONDING FLANGE INNER SURFACE TO PREVENT ANY TENDENCY OF A TUBE SHEET TO DISTORT DURING CHANGES IN EXCHANGER TEMPERATURE.
References Cited (Backward Citations)
US1834001A
Cited
US1987372A
Cited
US1980791A
Cited
US2228819A
Cited
US2686957A
Cited
US2782782A
Cited
US2933291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |