US3129756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube elements
Assignee: Individual
•
Filing: 1959-11-12
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Granted: 1964-04-21
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Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Ramen Torsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:02
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/08; F22B37/00; F22B37/02; F22B37/10; F22B37/12; F22D; F22D1/00; F22D1/02; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/427; Y10S165/432; Y10S165/433; Y10S165/434
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A HEAT EXCHANGER COMPRISING A CYLINDRICAL CASING HAVING AT LEAST TWO SETS OF INLETS AND OUTLETS FOR TWO DIFFERENT FLUIDS WHICH ARE TO UNDERGO HEAT EXCHANGE IN THE HEAT EXCHANGER, A SET OF FLAT, SUBSTANTIALLY RECTANGULAR HOLLOW ELEMENTS WITHIN SAID CASING AND IN COMMUNICATION WITH ONE SET OF SAID INLETS AND OUTLETS FOR THE PASSAGE THERETHROUGH OF ONE FLUID, SAID ELEMENTS BEING DISPOSED IN PARALLEL RELATIONSHIP AND PARALLEL TO THE AXIS OF SAID CASING AND SPACED APART FROM EACH OTHER AND THE OTHER SET OF SAID INLETS AND OUTLETS BEING IN COMMUNICATION WITH THE SPACERS ABOUT SAID ELEMENTS WITH THE OTHER FLUID BEING PASSED BETWEEN AND AROUND SAID ELEMENTS, EACH OF SAID ELEMENTS BEING COMPOSED OF PLATES ARRANGED IN COPLANAR SPACED RELATION AND HAVING LONGITUDINAL SIDES IN SEALING ENGAGEMENT WITH ONE ANOTHER TO DEFINE HOLLOW TUBE ELEMENTS THEREBETWEEN, SAID HOLLOW TUBE ELEMENTS BEING ARRANGED IN PARALLEL ARRAY DIAMETRICALLY ACROSS THE CASING, CERTAIN OF SAID HOLLOW TUBE ELEMENTS HAVING DIFFERENT
Claim 2
Dependent Claim
159 words
A HEAT EXCHANGER COMPRISING A CYLINDRICAL CASING HAVING AT LEAST TWO SETS OF INLETS AND OUTLETS FOR TWO DIFFERENT FLUIDS WHICH ARE TO UNDERGO HEAT EXCHANGE IN THE HEAT EXCHANGER, A SET OF FLAT, SUBSTANTIALLY RECTANGULAR HOLLOW ELEMENTS WITHIN SAID CASING AND IN COMMUNICATION WITH ONE SET OF SAID INLETS AND OUTLETS FOR THE PASSAGE THERETHROUGH OF ONE FLUID, SAID ELEMENTS BEING DISPOSED IN PARALLEL RELATIONSHIP AND PARALLEL TO THE AXIS OF SAID CASING AND SPACED APART FROM EACH OTHER AND THE OTHER SET OF SAID INLETS AND OUTLETS BEING IN COMMUNICATION WITH THE SPACERS ABOUT SAID ELEMENTS WITH THE OTHER FLUID BEING PASSED BETWEEN AND AROUND SAID ELEMENTS, EACH OF SAID ELEMENTS BEING COMPOSED OF PLATES ARRANGED IN COPLANAR SPACED RELATION AND HAVING LONGITUDINAL SIDES IN SEALING ENGAGEMENT WITH ONE ANOTHER TO DEFINE HOLLOW TUBE ELEMENTS THEREBETWEEN, SAID HOLLOW TUBE ELEMENTS BEING ARRANGED IN PARALLEL ARRAY DIAMETRICALLY ACROSS THE CASING, CERTAIN OF SAID HOLLOW TUBE ELEMENTS HAVING DIFFERENT
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |