Patent US3195626A successfully refreshed from Google Patents.
US3195626A
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US
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Heat exchanger
Assignee: Motors Liquidation Co
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Filing: 1962-07-09
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Granted: 1965-07-20
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 Druseikis Frederick
- 👤 Robert W Haley
- 👤 Paul R Lagonegro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:45
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/08; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/26; F28F1/28; F28F13/00; F28F13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A TUBULAR HEAT EXCHANGER INCLUDING, A PLURALITY OF INTERFITTING RINGS, EACH RING COMPRISING AN ANNULAR BODY HAVING AN OUTWARDLY EXTENDING, ANNULAR FIN AT ONE END AND A PLURALITY OF INWARDLY EXTENDING, SEGMENTAL HELICAL FINS AT ITS OTHER END, STOP MEANS ON SAID ANNULAR BODY ENGAGEABLE WITH THE ADJACENT RING TO SPACE THE ANNULAR FINS EQUIDISTANTLY APART, THE ENDS OF THE SEGMENTAL HELICAL FINS OF ADJACENT RINGS ABUTTING EACH OTHER AND DEFINING A PLURALITY OF INTERNAL HELICAL PASSAGES IN THE HEAT EXCHANGER EQUAL TO THE NUMBER OF SEGMENTAL HELICAL FINS ON EACH RING.
Claim 2
Dependent Claim
92 words
A TUBULAR HEAT EXCHANGER INCLUDING, A PLURALITY OF INTERFITTING RINGS, EACH RING COMPRISING AN ANNULAR BODY HAVING AN OUTWARDLY EXTENDING, ANNULAR FIN AT ONE END AND A PLURALITY OF INWARDLY EXTENDING, SEGMENTAL HELICAL FINS AT ITS OTHER END, STOP MEANS ON SAID ANNULAR BODY ENGAGEABLE WITH THE ADJACENT RING TO SPACE THE ANNULAR FINS EQUIDISTANTLY APART, THE ENDS OF THE SEGMENTAL HELICAL FINS OF ADJACENT RINGS ABUTTING EACH OTHER AND DEFINING A PLURALITY OF INTERNAL HELICAL PASSAGES IN THE HEAT EXCHANGER EQUAL TO THE NUMBER OF SEGMENTAL HELICAL FINS ON EACH RING.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |