Patent US3173479A successfully refreshed from Google Patents.
US3173479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Olin Corp
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Filing: 1959-09-30
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Granted: 1965-03-16
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Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 Heuer Charles Archibald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:29
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/04; F25; F25B; F25B2339/00; F25B2339/04; F25B2339/043; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/302; Y10S165/303; Y10S165/304; Y10S165/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A COUNTER-CURRENT HEAT EXCHANGER COMPRISING AN INTEGRAL ONE PIECE SHEET ELEMENT HAVING ADJACENT AND LONGITUDINALLY ALIGNED PORTIONS WITH SAID SHEET BENT TO BRING SAID PORTIONS INTO JUXTAPOSED AND ABUTTING RELATIONSHIP WITH EACH OTHER, A TUBULAR PASSAGEWAY SYSTEM INTERNALLY DISPOSED N EACH OF SAID PORTIONS WHEREIN EACH OF SAID SYSTEMS LIES SUBSTANTIALLY ATHWARD ITS RESPECTIVE PORTION AND TRAVERSES ITS SAID RESPECTIVE PORTION IN A DIRECTION TRANSVERSE THE DIRECTION OF ALIGNMENT OF SAID PORTIONS WITH EACH OF SAID SYSTEMS HAVING ONE OF ITS TERMINAL PORTIONS DISPOSED ADJACENT ONE OF THE LATERAL EDGES OF SAID SHEET WHICH EXTEND IN SAID DIRECTION OF ALIGNMENT AND HAVING THE OTHER OF SAID TERMINAL PORTIONS DISPOSED ADJACENT THE OTHER OF SAID LATERAL EDGES, AN INLET FOR EACH OF SAID SYSTEMS AT SUCCESSIVELY ALTERNATE RECITED TERMINAL PORTIONS THEREOF, AND AN OUTLET FOR EACH OF SAID SYSTEMS AT THE OTHER OF THE RECITED TERMINAL PORTIONS WHEREBY FLUID IN ADJACENT JUXTAPOSED PORTIONS IS CONTRAINED TO FLOW IN COUNTER-CURRENT RELATIONSHIP.
Claim 2
Dependent Claim
159 words
A COUNTER-CURRENT HEAT EXCHANGER COMPRISING AN INTEGRAL ONE PIECE SHEET ELEMENT HAVING ADJACENT AND LONGITUDINALLY ALIGNED PORTIONS WITH SAID SHEET BENT TO BRING SAID PORTIONS INTO JUXTAPOSED AND ABUTTING RELATIONSHIP WITH EACH OTHER, A TUBULAR PASSAGEWAY SYSTEM INTERNALLY DISPOSED N EACH OF SAID PORTIONS WHEREIN EACH OF SAID SYSTEMS LIES SUBSTANTIALLY ATHWARD ITS RESPECTIVE PORTION AND TRAVERSES ITS SAID RESPECTIVE PORTION IN A DIRECTION TRANSVERSE THE DIRECTION OF ALIGNMENT OF SAID PORTIONS WITH EACH OF SAID SYSTEMS HAVING ONE OF ITS TERMINAL PORTIONS DISPOSED ADJACENT ONE OF THE LATERAL EDGES OF SAID SHEET WHICH EXTEND IN SAID DIRECTION OF ALIGNMENT AND HAVING THE OTHER OF SAID TERMINAL PORTIONS DISPOSED ADJACENT THE OTHER OF SAID LATERAL EDGES, AN INLET FOR EACH OF SAID SYSTEMS AT SUCCESSIVELY ALTERNATE RECITED TERMINAL PORTIONS THEREOF, AND AN OUTLET FOR EACH OF SAID SYSTEMS AT THE OTHER OF THE RECITED TERMINAL PORTIONS WHEREBY FLUID IN ADJACENT JUXTAPOSED PORTIONS IS CONTRAINED TO FLOW IN COUNTER-CURRENT RELATIONSHIP.
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |