US3207216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Borg Warner Corp
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Filing: 1963-02-27
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Granted: 1965-09-21
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Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Desmond M Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:59
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/03; F28D1/0308; F28D1/0325; F28D1/0333; F28F; F28F3/00; F28F3/08; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/464; Y10S165/465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A HEAT EXCHANGER, AT LEAST ONE LONGITUDINALLY ELONGATED FLUID CONDUCTING ELEMENT INCLUDING A PAIR OF IDENTICAL, LONGITUDINALLY ELONGATED PLATES DISPOSED IN OVERLYING RELATION AND SECURED TOGETHER ALONG THEIR PERIPHERAL EDGES IN FLUID TIGHT RELATION, ONE LONGITUDINALLY EXTENDING HALF OF EACH OF SAID PLATES INCLUDING A FLANGE EXTENDING ENTIRELY ABOUT ITS PERIPHERAL EDGE AND THE OTHER LONGITUDINALLY EXTENDING HALF OF SAID PLATE INCLUDING A COMPLETELY UNFLANGED PERIPHERAL EDGE, SAID PLATES BEING DISPOSED IN LONGITUDINALLY TRANSPOSED OVERLYING RELATION WITH THE FIRST HALF OF EACH OF SAID PLATES OVERLYING THE SECOND HALF OF THE OTHER THEREOF WITH THE FLANGED EDGE OF EACH OF SAID FIRST HALVES ENGAGING THE MATING UNFLANGED EDGE OF EACH OF SAID SECOND HALVES, SAID ENGAGEMENT PREVENTING TRANSVERSE MOVEMENT OF SAID PLATES WITH RESPECT TO EACH OTHER PRIOR TO SECURING SAID PLATES TOGETHER IN SAID FLUID TIGHT RELATION; AND MEANS DEFINING A FLUID INLET AND FLUID OUTLET IN COMMUNICATION WITH SAID FLUID CONDUCTING ELEMENT.
Claim 2
Dependent Claim
155 words
IN A HEAT EXCHANGER, AT LEAST ONE LONGITUDINALLY ELONGATED FLUID CONDUCTING ELEMENT INCLUDING A PAIR OF IDENTICAL, LONGITUDINALLY ELONGATED PLATES DISPOSED IN OVERLYING RELATION AND SECURED TOGETHER ALONG THEIR PERIPHERAL EDGES IN FLUID TIGHT RELATION, ONE LONGITUDINALLY EXTENDING HALF OF EACH OF SAID PLATES INCLUDING A FLANGE EXTENDING ENTIRELY ABOUT ITS PERIPHERAL EDGE AND THE OTHER LONGITUDINALLY EXTENDING HALF OF SAID PLATE INCLUDING A COMPLETELY UNFLANGED PERIPHERAL EDGE, SAID PLATES BEING DISPOSED IN LONGITUDINALLY TRANSPOSED OVERLYING RELATION WITH THE FIRST HALF OF EACH OF SAID PLATES OVERLYING THE SECOND HALF OF THE OTHER THEREOF WITH THE FLANGED EDGE OF EACH OF SAID FIRST HALVES ENGAGING THE MATING UNFLANGED EDGE OF EACH OF SAID SECOND HALVES, SAID ENGAGEMENT PREVENTING TRANSVERSE MOVEMENT OF SAID PLATES WITH RESPECT TO EACH OTHER PRIOR TO SECURING SAID PLATES TOGETHER IN SAID FLUID TIGHT RELATION; AND MEANS DEFINING A FLUID INLET AND FLUID OUTLET IN COMMUNICATION WITH SAID FLUID CONDUCTING ELEMENT.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |