US3334399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazed laminated construction and method of fabrication thereof
Assignee: Stewart Warner Corp
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Filing: 1962-12-31
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Granted: 1967-08-08
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ross W Teeguarden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0031; F28D9/0043; F28D9/0056; B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; F28D9/0062; F28D9/0075; F28F; F28F2250/00; F28F2250/10; F28F2250/102; F28F2275/00; F28F2275/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN THE METHOD OF FABRICATING A HEAT EXCHANGER WHEREIN A PLURALITY OF PLATES AND WEBS ARE STACKED SUCCESSIVELY TO FORM HEAT EXCHANGER SPACES INDIVIDUAL TO A RESPECTIVE FLUID FOR EXCHANGING HEAT BETWEEN TWO FLUIDS, THE METHOD COMPRISING PROVIDING A SUITABLE INTERMEDIATE OPENING IN EACH OF SAID PLATES AND WEBS FOR CONDUCTING EACH FLUID, AN EDGE RECESS IN CERTAIN OF SAID PLATES AND WEBS WITH EACH RECESS HAVING A SHOULDER THEREIN, STACKING SAID PLATES AND WEBS SUCCESSIVELY WITH THE RECESSES AND SHOULDERS ALIGNED WHEREBY SAID RECESSES PROVIDE A LOCKING ELEMENT PASSAGEWAY WITH AN OPEN END, INSERTING A LOCKING ELEMENT THROUGH SAID OPEN END AND IN SAID LOCKING ELEMENT PASSAGE-
Claim 2
Dependent Claim
108 words
IN THE METHOD OF FABRICATING A HEAT EXCHANGER WHEREIN A PLURALITY OF PLATES AND WEBS ARE STACKED SUCCESSIVELY TO FORM HEAT EXCHANGER SPACES INDIVIDUAL TO A RESPECTIVE FLUID FOR EXCHANGING HEAT BETWEEN TWO FLUIDS, THE METHOD COMPRISING PROVIDING A SUITABLE INTERMEDIATE OPENING IN EACH OF SAID PLATES AND WEBS FOR CONDUCTING EACH FLUID, AN EDGE RECESS IN CERTAIN OF SAID PLATES AND WEBS WITH EACH RECESS HAVING A SHOULDER THEREIN, STACKING SAID PLATES AND WEBS SUCCESSIVELY WITH THE RECESSES AND SHOULDERS ALIGNED WHEREBY SAID RECESSES PROVIDE A LOCKING ELEMENT PASSAGEWAY WITH AN OPEN END, INSERTING A LOCKING ELEMENT THROUGH SAID OPEN END AND IN SAID LOCKING ELEMENT PASSAGE-
References Cited (Backward Citations)
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US3046639A
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US3079994A
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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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |