Patent US3240268A successfully refreshed from Google Patents.
US3240268A
Expired / Lapsed
US
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Stacked caseless heat exchangers
Assignee: Motors Liquidation Co
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Filing: 1962-01-02
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Granted: 1966-03-15
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Fred D Armes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:06
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0031; F28D9/0043; F28D9/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A HEAT EXCHANGER FOR CONDUCTING TWO LIQUIDS IN HEAT EXCHANGE RELATION, SAID EXCHANGER COMPRISING A STACK OF PLATES FORMING SUCCESSIVELY ARRANGED FLOW CHAMBERS, SAID PLATES INCLUDING TWO END PLATES AT EACH OF SAID STACK AND CORRUGATGED INTERMEDIATE PLATES, EACH OF SAID INTERMEDIATE PLATES HAVING ITS CORRUGATIONS EXTENDING TRANSVERSE TO AND BEING IN CONTACT WITH THE CORRUGATIONS IN AN ADJACENT PLATE AND ITS PERIPHERY JOINED TO THE PERIPHERY OF SAID ADJACENT PLATE TO FORM ONE OF SAID FLOW CHAMBERS, SAID INTERMEDIATE PLATES HAVING FOUR CONTINUOUS FLANGES DEFINING FOUR FLOW OPENINGS, TWO OF THE CONTINUOUS FLANGES OF EACH INTERMEDIATE PLATE BEING JOINED TO AND IN REGISTRY WITH TWO CONTINUOUS FLANGES OF AN ADJACENT INTERMEDIATE PLATE GIVING CONTINUITY OF COMMUNICATION WITHIN ONE SET OF SAID FLOW CHAMBERS AS A FIRST FLOW PASSAGE FOR ONE
Claim 2
Dependent Claim
131 words
A HEAT EXCHANGER FOR CONDUCTING TWO LIQUIDS IN HEAT EXCHANGE RELATION, SAID EXCHANGER COMPRISING A STACK OF PLATES FORMING SUCCESSIVELY ARRANGED FLOW CHAMBERS, SAID PLATES INCLUDING TWO END PLATES AT EACH OF SAID STACK AND CORRUGATGED INTERMEDIATE PLATES, EACH OF SAID INTERMEDIATE PLATES HAVING ITS CORRUGATIONS EXTENDING TRANSVERSE TO AND BEING IN CONTACT WITH THE CORRUGATIONS IN AN ADJACENT PLATE AND ITS PERIPHERY JOINED TO THE PERIPHERY OF SAID ADJACENT PLATE TO FORM ONE OF SAID FLOW CHAMBERS, SAID INTERMEDIATE PLATES HAVING FOUR CONTINUOUS FLANGES DEFINING FOUR FLOW OPENINGS, TWO OF THE CONTINUOUS FLANGES OF EACH INTERMEDIATE PLATE BEING JOINED TO AND IN REGISTRY WITH TWO CONTINUOUS FLANGES OF AN ADJACENT INTERMEDIATE PLATE GIVING CONTINUITY OF COMMUNICATION WITHIN ONE SET OF SAID FLOW CHAMBERS AS A FIRST FLOW PASSAGE FOR ONE
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |