US3191673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectionalized heat-exchanger core-unit
Assignee: Young Radiator Co
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Filing: 1962-04-25
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Granted: 1965-06-29
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Expires: 1982-04-25
Abstract
No abstract record available.
Inventors
- 👤 Fred M Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/32; F28D; F28D1/00; F28D1/02; F28D1/0233; F28D1/024; F28D1/04; F28D1/053; F28D1/05316; F28D1/05333; F28D2001/0253; F28D2001/026; F28D2001/0266; F28F2265/00; F28F2265/26; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/50; Y10S165/501
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A HEAT-EXCHANGER CORE-UNIT, FOR USE IN A STEAM-HEATING SYSTEM WHICH IS SUBJECTED TO CONSTANTLY FLUCTUATING PRESSURES AND TEMPERATURES, COMPRISING: (A) A PAIR OF HEADERS, EACH OF ONE PIECE, ELONGATED, HAVING A SINGLE CHAMBER AND RECTANGULAR CROSS-SECTION, (B) A BATTERY OF TUBES IN MULTIPLE STAGGERED ROWS BONDED AT THEIR ENDS TO THE RESPECTIVE HEADERS AND DISPOSING THE HEADERS IN VERTICALLY-SPACED RELATIONSHIP WITH FLUID FLOW IN ONE DIRECTION BETWEEN THE TWO HEADERS, AND (C) A VERTICAL SERIES OF TRANSVERSE FINS DIVIDED INTO MULTIPLE VERTICAL GROUPS APPROXIMATELY OF THE SAME LENGTH RADIALLY OF THE TUBES, AND EMBRACING APPROXIMATELY THE SAME NUMBER OF TUBES WITH THE OPPOSITELYSPACED ENDS OF THE GROUPS OF FINS DISPOSED IN COMMON VERTICAL PLANES EXTENDING THROUGHOUT THE ENTIRE DISTANCE BETWEEN THE HEADERS AND WITH SAID ENDS BEING INCLINED BETWEEN THE STAGGERED TUBES AND SUFFICIENTLY SPACED TO AVOID BUCKLING OF SAID FINS.
Claim 2
Dependent Claim
141 words
A HEAT-EXCHANGER CORE-UNIT, FOR USE IN A STEAM-HEATING SYSTEM WHICH IS SUBJECTED TO CONSTANTLY FLUCTUATING PRESSURES AND TEMPERATURES, COMPRISING: (A) A PAIR OF HEADERS, EACH OF ONE PIECE, ELONGATED, HAVING A SINGLE CHAMBER AND RECTANGULAR CROSS-SECTION, (B) A BATTERY OF TUBES IN MULTIPLE STAGGERED ROWS BONDED AT THEIR ENDS TO THE RESPECTIVE HEADERS AND DISPOSING THE HEADERS IN VERTICALLY-SPACED RELATIONSHIP WITH FLUID FLOW IN ONE DIRECTION BETWEEN THE TWO HEADERS, AND (C) A VERTICAL SERIES OF TRANSVERSE FINS DIVIDED INTO MULTIPLE VERTICAL GROUPS APPROXIMATELY OF THE SAME LENGTH RADIALLY OF THE TUBES, AND EMBRACING APPROXIMATELY THE SAME NUMBER OF TUBES WITH THE OPPOSITELYSPACED ENDS OF THE GROUPS OF FINS DISPOSED IN COMMON VERTICAL PLANES EXTENDING THROUGHOUT THE ENTIRE DISTANCE BETWEEN THE HEADERS AND WITH SAID ENDS BEING INCLINED BETWEEN THE STAGGERED TUBES AND SUFFICIENTLY SPACED TO AVOID BUCKLING OF SAID FINS.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |