US3292689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platefin-type heat exchanger and method of making same
Assignee: Kimurakoki Co Ltd
•
Filing: 1964-07-07
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Granted: 1966-12-20
•
Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Kimura Keiichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:25
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/32; B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; B21D53/085; F28F9/00; F28F9/26; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/50; Y10S165/501; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/4938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PLATE-FIN HEAT EXCHANGER COMPRISING, IN COMBINATION, A PLURALITY OF SAPCED, SUBSTANTIALLY PARALLEL, HEAT EXCHANGING PLATE-FINS MOUNTED ON PLURAL SUBSTANTIALLY PARALLEL FLUID CONDIUT TUBES; EACH TUBE EXTENDING THROUGH A RESPCTIVE OPENING IN EAH PLATE-FIN AND BEING TIGHTLY EMBRACED BY A ONE-PIECE CYLINDRICAL FLANGE WHICH ENCIRCLES THE TUBE AND EXTENDS FROM THE SURFACE OF EACH PLATE CONCENTRIC WITH THE RESPECTIVE OPENING; EACH CYLINDRIAL FLANGE EXTENDING FROM A CUIRCULAR DEPRSSION IN AT LEAST ONE SURFACE OF THE ASSOCIATED PLATE, THE CIRCULAR DE-
Claim 2
Dependent Claim
80 words
A PLATE-FIN HEAT EXCHANGER COMPRISING, IN COMBINATION, A PLURALITY OF SAPCED, SUBSTANTIALLY PARALLEL, HEAT EXCHANGING PLATE-FINS MOUNTED ON PLURAL SUBSTANTIALLY PARALLEL FLUID CONDIUT TUBES; EACH TUBE EXTENDING THROUGH A RESPCTIVE OPENING IN EAH PLATE-FIN AND BEING TIGHTLY EMBRACED BY A ONE-PIECE CYLINDRICAL FLANGE WHICH ENCIRCLES THE TUBE AND EXTENDS FROM THE SURFACE OF EACH PLATE CONCENTRIC WITH THE RESPECTIVE OPENING; EACH CYLINDRIAL FLANGE EXTENDING FROM A CUIRCULAR DEPRSSION IN AT LEAST ONE SURFACE OF THE ASSOCIATED PLATE, THE CIRCULAR DE-
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |