Patent US3334400A successfully refreshed from Google Patents.
US3334400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing heat exchangers
Assignee: Olin Corp
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Filing: 1964-12-07
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Granted: 1967-08-08
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Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Ulric R Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/003; F28F2255/00; F28F2255/18; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49361; Y10T29/4981; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD FOR PRODUCING A TUBULAR HEAT EXCHANGER HAVING A PLURALITY OF FIRST TUBULAR MEANS ARRANGED RADIALLY AROUND A VOID WITHIN A SECOND TUBULAR CONDUIT MEANS, THE METHOD COMPRISING (A) POSITIONING A CENTRAL REMOVABLE CORE WITHIN A TUBULAR MEMBER, (B) POSITIONING AND SUPPORTING A PLURALITY OF FIRST TUBULAR CONDUIT MEANS IN THE SPACE BETWEEN SAID CORE AND SAID TUBULAR MEMBER, SAID CONDUIT MEANS BEING RADIALLY ARRANGED, (C) INTRODUCING A PARTICULATE METALLIC MATERIAL INTO THE SPACE BETWEEN SAID CORE AND SAID TUBULAR MEMBER NOT OCCUPIED BY SAID CONDUIT MEANS, (D) FORMING A METALLIC BOND BETWEEN THE INDIVIDUAL PARTICLES OF SAID PARTICULATE MATERIAL AND BETWEEN SAID PARTICULATE MATERIAL AND SAID CONDUIT MEANS, TO FORM A PERVIOUS BODY SURROUNDING SAID CONDUIT MEANS, (E) REMOVING SAID CORE TO FORM A PASSAGE CENTRALLY OF SAID PERVIOUS BODY, (F) REMOVING SAID TUBULAR MEMBER, AND (G) POSITIONING SAID PERVIOUS BODY WITHIN A SECOND CONDUIT MEANS.
Claim 2
Independent Claim
148 words
A METHOD FOR PRODUCING A TUBULAR HEAT EXCHANGER HAVING A PLURALITY OF FIRST TUBULAR MEANS ARRANGED RADIALLY AROUND A VOID WITHIN A SECOND TUBULAR CONDUIT MEANS, THE METHOD COMPRISING (A) POSITIONING A CENTRAL REMOVABLE CORE WITHIN A TUBULAR MEMBER, (B) POSITIONING AND SUPPORTING A PLURALITY OF FIRST TUBULAR CONDUIT MEANS IN THE SPACE BETWEEN SAID CORE AND SAID TUBULAR MEMBER, SAID CONDUIT MEANS BEING RADIALLY ARRANGED, (C) INTRODUCING A PARTICULATE METALLIC MATERIAL INTO THE SPACE BETWEEN SAID CORE AND SAID TUBULAR MEMBER NOT OCCUPIED BY SAID CONDUIT MEANS, (D) FORMING A METALLIC BOND BETWEEN THE INDIVIDUAL PARTICLES OF SAID PARTICULATE MATERIAL AND BETWEEN SAID PARTICULATE MATERIAL AND SAID CONDUIT MEANS, TO FORM A PERVIOUS BODY SURROUNDING SAID CONDUIT MEANS, (E) REMOVING SAID CORE TO FORM A PASSAGE CENTRALLY OF SAID PERVIOUS BODY, (F) REMOVING SAID TUBULAR MEMBER, AND (G) POSITIONING SAID PERVIOUS BODY WITHIN A SECOND CONDUIT MEANS.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |