Patent US3240267A successfully refreshed from Google Patents.
US3240267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Borg Warner Corp
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Filing: 1963-07-16
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Granted: 1966-03-15
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Edberg Per
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:44
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/22; F28F2009/222; F28F2009/226; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/401; Y10S165/416; Y10S165/417
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A HEAT EXCHANGER COMPRISING: A SHELL INCLUDING A GENERALLY CYLINDRICAL, RIGID WALL HAVING PREDETERMINED INTERNAL DIMENSIONS; HEAT EXCHANGE TUBE MEANS DISPOSED WITHIN SAID SHELL; MEANS FOR PASSING A FIRST FLUID INSIDE SAID TUBE MEANS; MEANS FOR PASING AS SECOND FLUID INOT SAID THROUGH SAID SHELL IN HEAT EXCHANGE RELATION WITH THE OUTSIDE OF SAID TUBE MEANS; A PLURALITY OF AXIALLY SPACED, CROSS-FLOW BAFFLES ARRANGED WITHIN SAID SHELL TO PROVIDE A TORTUOUS PATH FOR SADI SECOND FLUID, SAID BAFFLES HAVING MARGINAL EDGES GENERALLY CONFORMING TO AND SPACED FROM SAID CYLINDRICAL WALL, THE DIAMETRAL DIMENSIONS OF SAID BAFFLES BEING LESS THAN SAID INTERNAL DIMENSIONS OF SAID CYLINDRICAL WALL, SAID CYLINDRICAL WALL BEING DEFORMED INWARDLY AT AXIALLY SPACED LOCATIONS ADJACENT TO AND ON OPPOSITE SIDES OF THE MARGINAL EDGES OF SAID BAFFLES TO PROVIDE CIRCUMFERENTIAL, INWARDLY EXTENSING PROJECTIONS INTEGRAL WITH SAID WALL AND ENGAGING THE MARGINAL EDGES OF SAID BAFFLES, WHEREBY SAID PROJECTIONS INSURE A SEALING FIT BETWEEN SAID SHELL AND SAID BAFFLES TO REDUCE LEAKAGE BETWEEN SAID BAFFLES AND SAID CYLINDRICAL WALL.
Claim 2
Dependent Claim
170 words
A HEAT EXCHANGER COMPRISING: A SHELL INCLUDING A GENERALLY CYLINDRICAL, RIGID WALL HAVING PREDETERMINED INTERNAL DIMENSIONS; HEAT EXCHANGE TUBE MEANS DISPOSED WITHIN SAID SHELL; MEANS FOR PASSING A FIRST FLUID INSIDE SAID TUBE MEANS; MEANS FOR PASING AS SECOND FLUID INOT SAID THROUGH SAID SHELL IN HEAT EXCHANGE RELATION WITH THE OUTSIDE OF SAID TUBE MEANS; A PLURALITY OF AXIALLY SPACED, CROSS-FLOW BAFFLES ARRANGED WITHIN SAID SHELL TO PROVIDE A TORTUOUS PATH FOR SADI SECOND FLUID, SAID BAFFLES HAVING MARGINAL EDGES GENERALLY CONFORMING TO AND SPACED FROM SAID CYLINDRICAL WALL, THE DIAMETRAL DIMENSIONS OF SAID BAFFLES BEING LESS THAN SAID INTERNAL DIMENSIONS OF SAID CYLINDRICAL WALL, SAID CYLINDRICAL WALL BEING DEFORMED INWARDLY AT AXIALLY SPACED LOCATIONS ADJACENT TO AND ON OPPOSITE SIDES OF THE MARGINAL EDGES OF SAID BAFFLES TO PROVIDE CIRCUMFERENTIAL, INWARDLY EXTENSING PROJECTIONS INTEGRAL WITH SAID WALL AND ENGAGING THE MARGINAL EDGES OF SAID BAFFLES, WHEREBY SAID PROJECTIONS INSURE A SEALING FIT BETWEEN SAID SHELL AND SAID BAFFLES TO REDUCE LEAKAGE BETWEEN SAID BAFFLES AND SAID CYLINDRICAL WALL.
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |