Patent US3202210A successfully refreshed from Google Patents.
US3202210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Joy Manufacturing Co
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Filing: 1961-11-14
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Granted: 1965-08-24
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 Robert W Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:48
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/02; F28D7/024; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A HEAT EXCHANGER HAVING A PAIR OF ELONGATED TUBULAR MEMBERS ONE OF WHICH ENCOMPASSES THE OTHER AND IS LATERALLY SPACED THEREFROM AND AT LEAST ONE OF WHICH IS OF A HEAT TRANSFERRING MATERIAL AND WHICH TUBULAR MEMBERS DEFINE A FLUID FLOW PATH THEREBETWEEN WHICH PATH IS DIVIDED INTO TWO PARALLEL PORTIONS BY MEANS OF AN ELONGATED HEAT TRANSFERRING MEMBER EXTENDING AXIALLY OF AND INTERMEDIATE SAID TUBULAR MEMBERS WITH EACH OF SAID PARALLEL PORTIONS HAVING HEAT TRANSFER MEANS CLOSELY RECEIVED THEREIN TO OBTAIN A SUBSTANTIALLY GREATER RATE TO HEAT TRANSFER IN A DIRECTION LATERALLY OF SAID TUBULAR MEMBERS THAN IN A DIRECTION AXIALLY THEREOF, THE IMPROVEMENT COMPRISING, HAVING OPENINGS IN SAID HEAT TRANSFERRING MEMBER SUCH THAT SAID HEAT TRANSFERRING MEMBER HAS NO RECTILINEAR THERMAL FLOW PATH LONGITUDINALLY BETWEEN THE END PORTIONS THEREOF AND TO PERMIT FLUID FLOW LATERALLY BETWEEN SAID PARALLEL PORTIONS.
Claim 2
Dependent Claim
142 words
IN A HEAT EXCHANGER HAVING A PAIR OF ELONGATED TUBULAR MEMBERS ONE OF WHICH ENCOMPASSES THE OTHER AND IS LATERALLY SPACED THEREFROM AND AT LEAST ONE OF WHICH IS OF A HEAT TRANSFERRING MATERIAL AND WHICH TUBULAR MEMBERS DEFINE A FLUID FLOW PATH THEREBETWEEN WHICH PATH IS DIVIDED INTO TWO PARALLEL PORTIONS BY MEANS OF AN ELONGATED HEAT TRANSFERRING MEMBER EXTENDING AXIALLY OF AND INTERMEDIATE SAID TUBULAR MEMBERS WITH EACH OF SAID PARALLEL PORTIONS HAVING HEAT TRANSFER MEANS CLOSELY RECEIVED THEREIN TO OBTAIN A SUBSTANTIALLY GREATER RATE TO HEAT TRANSFER IN A DIRECTION LATERALLY OF SAID TUBULAR MEMBERS THAN IN A DIRECTION AXIALLY THEREOF, THE IMPROVEMENT COMPRISING, HAVING OPENINGS IN SAID HEAT TRANSFERRING MEMBER SUCH THAT SAID HEAT TRANSFERRING MEMBER HAS NO RECTILINEAR THERMAL FLOW PATH LONGITUDINALLY BETWEEN THE END PORTIONS THEREOF AND TO PERMIT FLUID FLOW LATERALLY BETWEEN SAID PARALLEL PORTIONS.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |