Patent US3265129A successfully refreshed from Google Patents.
US3265129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger construction
Assignee: RTX Corp
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Filing: 1964-06-26
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Granted: 1966-08-09
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Rafael R Bawabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:41
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/001; F28D; F28D9/00; F28D9/0062; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/387; Y10S165/39; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A MULTI-CHANNEL MULTI-PASS PLATE AND FIN HEAT EXCHANGER HAVING A CORE OF STACKED LAYERS, EACH LAYER INCLUDING A CONTINUOUS FIN ELEMENT, SPACED PLATES SANDWICHING THE SIDES OF SAID FIN ELEMENT DEFINING THEREWITH A SERIES OF SEPARATE PARALLEL OPEN ENDED CHANNELS TERMINATING AT AN EDGE OF THE FIN ELEMENT, SAID LAYERS BEING STACKED SO THAT THE CHANNELS FORMED IN ONE LAYER LIE IN A DIRECTION TRANSVERSE TO THE CHANNELS IN THE ADJACENT LAYER, ELONGATED CLOSURE BARS EXTENDING THE LENGTH OF SAID LAYERS ABUTTING THE SPACED PLATES ADJACENT THE SIDE OF SAID FIN ELEMENTS, THE ENDS OF SAID CLOSURE MEMBERS BEING BENT INWARDLY TOWARD SAID FIN ELEMENT AND THE ANGLE OF SAID BEND BEING LESS 90*, SAID ENDS OF ALTERNATE CLOSURE MEMBERS BEING COMPLEMENTARY FOR DEFINING A CONTINUOUS RIGID CORNER SURFACE, HEADERS SECURED TO SAID SURFACE DEFINING AN INLET AND OUTLET FOR COMMUNICATING WITH THE CHANNELS AT THE ENDS OF THE FIN ELEMENTS.
Claim 2
Dependent Claim
151 words
A MULTI-CHANNEL MULTI-PASS PLATE AND FIN HEAT EXCHANGER HAVING A CORE OF STACKED LAYERS, EACH LAYER INCLUDING A CONTINUOUS FIN ELEMENT, SPACED PLATES SANDWICHING THE SIDES OF SAID FIN ELEMENT DEFINING THEREWITH A SERIES OF SEPARATE PARALLEL OPEN ENDED CHANNELS TERMINATING AT AN EDGE OF THE FIN ELEMENT, SAID LAYERS BEING STACKED SO THAT THE CHANNELS FORMED IN ONE LAYER LIE IN A DIRECTION TRANSVERSE TO THE CHANNELS IN THE ADJACENT LAYER, ELONGATED CLOSURE BARS EXTENDING THE LENGTH OF SAID LAYERS ABUTTING THE SPACED PLATES ADJACENT THE SIDE OF SAID FIN ELEMENTS, THE ENDS OF SAID CLOSURE MEMBERS BEING BENT INWARDLY TOWARD SAID FIN ELEMENT AND THE ANGLE OF SAID BEND BEING LESS 90*, SAID ENDS OF ALTERNATE CLOSURE MEMBERS BEING COMPLEMENTARY FOR DEFINING A CONTINUOUS RIGID CORNER SURFACE, HEADERS SECURED TO SAID SURFACE DEFINING AN INLET AND OUTLET FOR COMMUNICATING WITH THE CHANNELS AT THE ENDS OF THE FIN ELEMENTS.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |